🪩
VRF の練習
VRF設定
PEルータ設定
customer1 を設定します。
r1(config)#ip vrf customer1
r1(config-vrf)#rd 1:100
r1(config-vrf)#int s1/0
r1(config-if)#ip vrf forwarding customer1
r1(config-if)#ip address 10.2.1.254 255.255.255.0
r1(config-if)#no shut
CEルータ設定
customer1 のCEルータを設定します。
r2(config)#int s1/0
r2(config-if)#ip address 10.2.1.253 255.255.255.0
r2(config-if)#no shut
r2#show ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 unassigned YES unset administratively down down
FastEthernet0/1 unassigned YES unset administratively down down
Serial1/0 10.2.1.253 YES manual up up
Serial1/1 unassigned YES unset administratively down down
Serial1/2 unassigned YES unset administratively down down
Serial1/3 unassigned YES unset administratively down down
r2#show cdp nei
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
r1.localdomain.local
Ser 1/0 128 R S I 3725 Ser 1/0
PEルータへの疎通を確認します。
r2#ping 10.2.1.254
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.2.1.254, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/16/20 ms
PEルータからCEルータに対して疎通確認します。
r1#ping vrf customer1 10.2.1.253
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.2.1.253, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 12/16/20 ms
r1#show ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 10.2.0.254 YES manual up up
FastEthernet0/1 unassigned YES unset administratively down down
Serial1/0 10.2.1.254 YES manual up up
Serial1/1 unassigned YES unset administratively down down
Serial1/2 unassigned YES unset administratively down down
Serial1/3 unassigned YES unset administratively down down
Loopback0 1.1.1.1 YES manual up up
r1#show cdp neigh
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
r2 Ser 1/0 159 R S I 3725 Ser 1/0
customer2 の追加
PEルータで、customer2を追加します。
r1(config)#ip vrf customer2
r1(config-vrf)#rd 1:200
r1(config-vrf)#int s1/2
r1(config-if)#ip vrf forwarding customer2
r1(config-if)#ip address 10.2.1.254 255.255.255.0
r1(config-if)#no shut
customer2 のCEルータで、設定します。
r4(config)#int s1/0
r4(config-if)#ip address 10.2.1.253 255.255.255.0
r4(config-if)#no shut
疎通確認します。
r4#ping 10.2.1.254
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.2.1.254, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 12/21/40 ms
r4#show ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 unassigned YES unset administratively down down
FastEthernet0/1 unassigned YES unset administratively down down
Serial1/0 10.2.1.253 YES manual up up
Serial1/1 unassigned YES unset administratively down down
Serial1/2 unassigned YES unset administratively down down
Serial1/3 unassigned YES unset administratively down down
r4#show cdp neigh
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
r1.localdomain.local
Ser 1/0 168 R S I 3725 Ser 1/2
PEルータ側から疎通確認します。
r1#ping vrf customer2 10.2.1.253
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.2.1.253, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/18/20 ms
r1#show ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 10.2.0.254 YES manual up up
FastEthernet0/1 unassigned YES unset administratively down down
Serial1/0 10.2.1.254 YES manual up up
Serial1/1 unassigned YES unset administratively down down
Serial1/2 10.2.1.254 YES manual up up
Serial1/3 unassigned YES unset administratively down down
Loopback0 1.1.1.1 YES manual up up
r1#
r1#show cdp neigh
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
r2 Ser 1/0 178 R S I 3725 Ser 1/0
r4 Ser 1/2 142 R S I 3725 Ser 1/0
customer1 に新しいCEを追加
PEルータで設定を追加します。
r1(config)#int s1/1
r1(config-if)#ip vrf forwarding customer1
r1(config-if)#ip address 10.2.2.254 255.255.255.0
customer1 の新しいCEルータの設定をします。
r3(config)#int s1/0
r3(config-if)#ip addr 10.2.2.253 255.255.255.0
r3(config-if)#no shut
疎通確認をします。
r3#ping 10.2.2.254
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.2.2.254, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/15/24 ms
r3#show ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 unassigned YES unset administratively down down
FastEthernet0/1 unassigned YES unset administratively down down
Serial1/0 10.2.2.253 YES manual up up
Serial1/1 unassigned YES unset administratively down down
Serial1/2 unassigned YES unset administratively down down
Serial1/3 unassigned YES unset administratively down down
r3#show cdp nei
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
r1.localdomain.local
Ser 1/0 150 R S I 3725 Ser 1/1
PEルータから疎通確認をします。
r1#ping vrf customer1 10.2.2.253
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.2.2.253, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/16/20 ms
PEルータで Serial1/0 と Serial1/2 で同じIPアドレス 10.2.1.254 が設定されています。
r1#show ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 10.2.0.254 YES manual up up
FastEthernet0/1 unassigned YES unset administratively down down
Serial1/0 10.2.1.254 YES manual up up
Serial1/1 10.2.2.254 YES manual up up
Serial1/2 10.2.1.254 YES manual up up
Serial1/3 unassigned YES unset administratively down down
Loopback0 1.1.1.1 YES manual up up
r1#show cdp nei
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
r2 Ser 1/0 166 R S I 3725 Ser 1/0
r3 Ser 1/1 167 R S I 3725 Ser 1/0
r4 Ser 1/2 130 R S I 3725 Ser 1/0
ルーティングの設定・テストの準備
以下で、customer1 でルーティングのテストを実施していきます。
仮想クライアント端末を接続するインタフェースを設定します。
r2(config)#int f0/0
r2(config-if)#ip address 192.168.1.254 255.255.255.0
r2(config-if)#no shut
r2#show ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.1.254 YES manual up up
FastEthernet0/1 unassigned YES unset administratively down down
Serial1/0 10.2.1.253 YES manual up up
Serial1/1 unassigned YES unset administratively down down
Serial1/2 unassigned YES unset administratively down down
Serial1/3 unassigned YES unset administratively down down
r3(config)#int f0/0
r3(config-if)#ip address 192.168.2.254 255.255.255.0
r3(config-if)#no shut
r3#sho ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.2.254 YES manual up up
FastEthernet0/1 unassigned YES unset administratively down down
Serial1/0 10.2.2.253 YES manual up up
Serial1/1 unassigned YES unset administratively down down
Serial1/2 unassigned YES unset administratively down down
Serial1/3 unassigned YES unset administratively down down
仮想端末を設定し、それぞれ接続したルータまで疎通確認します。
VPCS[1]> ip 192.168.1.1 255.255.255.0 192.168.1.254
Checking for duplicate address...
PC1 : 192.168.1.1 255.255.255.0 gateway 192.168.1.254
VPCS[1]> ping 192.168.1.254
192.168.1.254 icmp_seq=1 ttl=255 time=19.182 ms
192.168.1.254 icmp_seq=2 ttl=255 time=2.661 ms
192.168.1.254 icmp_seq=3 ttl=255 time=10.211 ms
192.168.1.254 icmp_seq=4 ttl=255 time=1.203 ms
192.168.1.254 icmp_seq=5 ttl=255 time=1.627 ms
VPCS[2]> ip 192.168.2.1 255.255.255.0 192.168.2.254
Checking for duplicate address...
PC2 : 192.168.2.1 255.255.255.0 gateway 192.168.2.254
VPCS[2]> ping 192.168.2.254
192.168.2.254 icmp_seq=1 timeout
192.168.2.254 icmp_seq=2 ttl=255 time=5.418 ms
192.168.2.254 icmp_seq=3 ttl=255 time=8.780 ms
192.168.2.254 icmp_seq=4 ttl=255 time=10.371 ms
192.168.2.254 icmp_seq=5 ttl=255 time=6.929 ms
VRFで設定した情報は、通常のルーティングテーブルには載りません。
r1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.1 is directly connected, Loopback0
10.0.0.0/24 is subnetted, 1 subnets
C 10.2.0.0 is directly connected, FastEthernet0/0
VRFごとのルーティングテーブルに情報が載ります。
r1#show ip route vrf customer1
Routing Table: customer1
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
C 10.2.1.0 is directly connected, Serial1/0
C 10.2.2.0 is directly connected, Serial1/1
r2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 1 subnets
C 10.2.1.0 is directly connected, Serial1/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
r3#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 1 subnets
C 10.2.2.0 is directly connected, Serial1/0
C 192.168.2.0/24 is directly connected, FastEthernet0/0
スタティックルート
PEルータで、vrf customer1 のスタティックルートの設定をします。
r1(config)#ip route vrf customer1 192.168.1.0 255.255.255.0 10.2.1.253
r1(config)#ip route vrf customer1 192.168.2.0 255.255.255.0 10.2.2.253
vrf customer1 のルーティングテーブルを確認します。
r1#show ip route vrf customer1
Routing Table: customer1
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
C 10.2.1.0 is directly connected, Serial1/0
C 10.2.2.0 is directly connected, Serial1/1
S 192.168.1.0/24 [1/0] via 10.2.1.253
S 192.168.2.0/24 [1/0] via 10.2.2.253
r2 でスタティックルートを設定します。
r2(config)#ip route 192.168.2.0 255.255.255.0 10.2.1.254
r2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 1 subnets
C 10.2.1.0 is directly connected, Serial1/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
S 192.168.2.0/24 [1/0] via 10.2.1.254
r3 でスタティックルートを設定します。
r3(config)#ip route 192.168.1.0 255.255.255.0 10.2.2.254
r3#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 1 subnets
C 10.2.2.0 is directly connected, Serial1/0
S 192.168.1.0/24 [1/0] via 10.2.2.254
C 192.168.2.0/24 is directly connected, FastEthernet0/0
疎通確認します。
VPCS[2]> ping 192.168.1.254
192.168.1.254 icmp_seq=1 ttl=253 time=50.401 ms
192.168.1.254 icmp_seq=2 ttl=253 time=49.320 ms
192.168.1.254 icmp_seq=3 ttl=253 time=48.016 ms
192.168.1.254 icmp_seq=4 ttl=253 time=42.212 ms
192.168.1.254 icmp_seq=5 ttl=253 time=43.713 ms
VPCS[2]>
VPCS[2]> ping 192.168.1.1
192.168.1.1 icmp_seq=1 ttl=61 time=53.680 ms
192.168.1.1 icmp_seq=2 ttl=61 time=55.962 ms
192.168.1.1 icmp_seq=3 ttl=61 time=51.771 ms
192.168.1.1 icmp_seq=4 ttl=61 time=54.192 ms
192.168.1.1 icmp_seq=5 ttl=61 time=59.886 ms
VPCS[2]>
RIPv2
PEルータで、スタティックルートの設定を削除し、RIPv2 の設定を追加します。
r1(config)#no ip route vrf customer1 192.168.1.0 255.255.255.0 10.2.1.253
r1(config)#no ip route vrf customer1 192.168.2.0 255.255.255.0 10.2.2.253
r1(config)#router rip
r1(config-router)#address-family ipv4 vrf customer1
r1(config-router-af)#version 2
r1(config-router-af)#network 10.2.1.0
r1(config-router-af)#network 10.2.2.0
r1(config-router-af)#passive-interface fa0/0
r1(config-router)#no auto-summary
r1#show ip protocols vrf customer1
Routing Protocol is "rip"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Sending updates every 30 seconds, next due in 20 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Redistributing: rip
Default version control: send version 2, receive version 2
Interface Send Recv Triggered RIP Key-chain
Serial1/0 2 2
Serial1/1 2 2
Maximum path: 4
Routing for Networks:
10.0.0.0
Routing Information Sources:
Gateway Distance Last Update
Distance: (default is 120)
r2で、スタティックルートの設定を削除し、RIPv2 の設定を追加します。
r2(config)#no ip route 192.168.2.0 255.255.255.0 10.2.1.254
r2(config)#router rip
r2(config-router)#version 2
r2(config-router)#network 10.2.1.0
r2(config-router)#network 192.168.1.0
r2(config-router)#passive-interface fa0/0
r2#show ip protocols
Routing Protocol is "rip"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Sending updates every 30 seconds, next due in 18 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Redistributing: rip
Default version control: send version 2, receive version 2
Interface Send Recv Triggered RIP Key-chain
Serial1/0 2 2
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
10.0.0.0
192.168.1.0
Passive Interface(s):
FastEthernet0/0
Routing Information Sources:
Gateway Distance Last Update
10.2.1.254 120 00:00:17
Distance: (default is 120)
r3で、スタティックルートの設定を削除し、RIPv2 の設定を追加します。
r3(config)#no ip route 192.168.1.0 255.255.255.0 10.2.2.254
r3(config)#router rip
r3(config-router)#version 2
r3(config-router)#network 10.2.2.0
r3(config-router)#network 192.168.2.0
r3(config-router)#passive-interface fa0/0
r3#show ip protocols
Routing Protocol is "rip"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Sending updates every 30 seconds, next due in 0 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Redistributing: rip
Default version control: send version 2, receive version 2
Interface Send Recv Triggered RIP Key-chain
Serial1/0 2 2
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
10.0.0.0
192.168.2.0
Passive Interface(s):
FastEthernet0/0
Routing Information Sources:
Gateway Distance Last Update
10.2.2.254 120 00:00:11
Distance: (default is 120)
各ルータで、RIPの学習状況を確認します。
r3#show ip rip database
10.0.0.0/8 auto-summary
10.2.1.0/24
[1] via 10.2.2.254, 00:00:06, Serial1/0
10.2.2.0/24 directly connected, Serial1/0
192.168.1.0/24 auto-summary
192.168.1.0/24
[2] via 10.2.2.254, 00:00:06, Serial1/0
192.168.2.0/24 auto-summary
192.168.2.0/24 directly connected, FastEthernet0/0
r3#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
R 10.2.1.0 [120/1] via 10.2.2.254, 00:00:13, Serial1/0
C 10.2.2.0 is directly connected, Serial1/0
R 192.168.1.0/24 [120/2] via 10.2.2.254, 00:00:13, Serial1/0
C 192.168.2.0/24 is directly connected, FastEthernet0/0
r2#show ip rip database
10.0.0.0/8 auto-summary
10.2.1.0/24 directly connected, Serial1/0
10.2.2.0/24
[1] via 10.2.1.254, 00:00:23, Serial1/0
192.168.1.0/24 auto-summary
192.168.1.0/24 directly connected, FastEthernet0/0
192.168.2.0/24 auto-summary
192.168.2.0/24
[2] via 10.2.1.254, 00:00:23, Serial1/0
r2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
C 10.2.1.0 is directly connected, Serial1/0
R 10.2.2.0 [120/1] via 10.2.1.254, 00:00:01, Serial1/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
R 192.168.2.0/24 [120/2] via 10.2.1.254, 00:00:01, Serial1/0
r1#show ip rip database vrf customer1
10.0.0.0/8 auto-summary
10.2.1.0/24 directly connected, Serial1/0
10.2.2.0/24 directly connected, Serial1/1
192.168.1.0/24 auto-summary
192.168.1.0/24
[1] via 10.2.1.253, 00:00:18, Serial1/0
192.168.2.0/24 auto-summary
192.168.2.0/24
[1] via 10.2.2.253, 00:00:13, Serial1/1
r1#show ip route vrf customer1
Routing Table: customer1
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
C 10.2.1.0 is directly connected, Serial1/0
C 10.2.2.0 is directly connected, Serial1/1
R 192.168.1.0/24 [120/1] via 10.2.1.253, 00:00:26, Serial1/0
R 192.168.2.0/24 [120/1] via 10.2.2.253, 00:00:21, Serial1/1
疎通確認します。
VPCS[2]> ping 192.168.1.254
192.168.1.254 icmp_seq=1 ttl=253 time=49.831 ms
192.168.1.254 icmp_seq=2 ttl=253 time=44.202 ms
192.168.1.254 icmp_seq=3 ttl=253 time=42.083 ms
192.168.1.254 icmp_seq=4 ttl=253 time=47.645 ms
192.168.1.254 icmp_seq=5 ttl=253 time=44.329 ms
VPCS[2]>
VPCS[2]> ping 192.168.1.1
192.168.1.1 icmp_seq=1 ttl=61 time=56.543 ms
192.168.1.1 icmp_seq=2 ttl=61 time=57.764 ms
192.168.1.1 icmp_seq=3 ttl=61 time=59.042 ms
192.168.1.1 icmp_seq=4 ttl=61 time=58.000 ms
192.168.1.1 icmp_seq=5 ttl=61 time=51.372 ms
VPCS[2]>
PEルータで、RIPｖ2 の設定を削除し、EIGRP の設定を追加します。
r1(config)#no router rip
r1(config)#router eigrp 1
r1(config-router)#address-family ipv4 vrf customer1
r1(config-router-af)#autonomous-system 10
r1(config-router-af)#network 10.2.1.0 0.0.0.255
r1(config-router-af)#network 10.2.2.0 0.0.0.255
r1(config-router-af)#no auto-summary
r1#show ip protocols vrf customer1
Routing Protocol is "eigrp 10"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: eigrp 10
EIGRP NSF-aware route hold timer is 240s
Automatic network summarization is not in effect
Maximum path: 4
Routing for Networks:
10.2.1.0/24
10.2.2.0/24
Routing Information Sources:
Gateway Distance Last Update
Distance: internal 90 external 170
r2で、RIPｖ2 の設定を削除し、EIGRP の設定を追加します。
r2(config)#no router rip
r2(config)#router eigrp 10
r2(config-router)#network 10.2.1.0 0.0.0.255
r2(config-router)#network 192.168.1.0 0.0.0.255
r2(config-router)#passive-interface fa0/0
r2(config-router)#no auto-summary
r2#show ip protocols
Routing Protocol is "eigrp 10"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: eigrp 10
EIGRP NSF-aware route hold timer is 240s
Automatic network summarization is not in effect
Maximum path: 4
Routing for Networks:
10.2.1.0/24
192.168.1.0
Passive Interface(s):
FastEthernet0/0
Routing Information Sources:
Gateway Distance Last Update
(this router) 90 00:00:45
10.2.1.254 90 00:00:37
Distance: internal 90 external 170
r3で、RIPｖ2 の設定を削除し、EIGRP の設定を追加します。
r3(config)#no router rip
r3(config)#router eigrp 10
r3(config-router)#network 10.2.2.0 0.0.0.255
r3(config-router)#network 192.168.2.0 0.0.0.255
r3(config-router)#passive-interface fa0/0
r3(config-router)#no auto-summary
r3#show ip protocols
Routing Protocol is "eigrp 10"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: eigrp 10
EIGRP NSF-aware route hold timer is 240s
Automatic network summarization is not in effect
Maximum path: 4
Routing for Networks:
10.2.2.0/24
192.168.2.0
Passive Interface(s):
FastEthernet0/0
Routing Information Sources:
Gateway Distance Last Update
(this router) 90 00:00:18
10.2.2.254 90 00:00:11
Distance: internal 90 external 170
各ルータで EIGRP の学習状況を確認します。
r3#show ip eigrp nei
IP-EIGRP neighbors for process 10
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 10.2.2.254 Se1/0 14 00:00:51 38 228 0 13
r3#show ip eigrp topology
IP-EIGRP Topology Table for AS(10)/ID(192.168.2.254)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status
P 10.2.1.0/24, 1 successors, FD is 2681856
via 10.2.2.254 (2681856/2169856), Serial1/0
P 10.2.2.0/24, 1 successors, FD is 2169856
via Connected, Serial1/0
P 192.168.1.0/24, 1 successors, FD is 2707456
via 10.2.2.254 (2707456/2195456), Serial1/0
P 192.168.2.0/24, 1 successors, FD is 281600
via Connected, FastEthernet0/0
r3#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
D 10.2.1.0 [90/2681856] via 10.2.2.254, 00:01:05, Serial1/0
C 10.2.2.0 is directly connected, Serial1/0
D 192.168.1.0/24 [90/2707456] via 10.2.2.254, 00:01:05, Serial1/0
C 192.168.2.0/24 is directly connected, FastEthernet0/0
r3#
r2#show ip eigrp nei
IP-EIGRP neighbors for process 10
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 10.2.1.254 Se1/0 10 00:02:49 30 200 0 11
r2#show ip eigrp topo
IP-EIGRP Topology Table for AS(10)/ID(192.168.1.254)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status
P 10.2.1.0/24, 1 successors, FD is 2169856
via Connected, Serial1/0
P 10.2.2.0/24, 1 successors, FD is 2681856
via 10.2.1.254 (2681856/2169856), Serial1/0
P 192.168.1.0/24, 1 successors, FD is 281600
via Connected, FastEthernet0/0
P 192.168.2.0/24, 1 successors, FD is 2707456
via 10.2.1.254 (2707456/2195456), Serial1/0
r2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
C 10.2.1.0 is directly connected, Serial1/0
D 10.2.2.0 [90/2681856] via 10.2.1.254, 00:03:01, Serial1/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
D 192.168.2.0/24 [90/2707456] via 10.2.1.254, 00:01:35, Serial1/0
r1#show ip eigrp vrf customer1 nei
IP-EIGRP neighbors for process 10
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
1 10.2.2.253 Se1/1 12 00:02:37 29 200 0 7
0 10.2.1.253 Se1/0 13 00:03:58 43 258 0 7
r1#show ip eigrp vrf customer1 topo
IP-EIGRP Topology Table for AS(10)/ID(10.2.2.254) Routing Table: customer1
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status
P 10.2.1.0/24, 1 successors, FD is 2169856
via Connected, Serial1/0
P 10.2.2.0/24, 1 successors, FD is 2169856
via Connected, Serial1/1
P 192.168.1.0/24, 1 successors, FD is 2195456
via 10.2.1.253 (2195456/281600), Serial1/0
P 192.168.2.0/24, 1 successors, FD is 2195456
via 10.2.2.253 (2195456/281600), Serial1/1
r1#show ip route vrf customer1
Routing Table: customer1
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
C 10.2.1.0 is directly connected, Serial1/0
C 10.2.2.0 is directly connected, Serial1/1
D 192.168.1.0/24 [90/2195456] via 10.2.1.253, 00:04:12, Serial1/0
D 192.168.2.0/24 [90/2195456] via 10.2.2.253, 00:02:51, Serial1/1
疎通確認します。
VPCS[2]> ping 192.168.1.254
192.168.1.254 icmp_seq=1 ttl=253 time=50.726 ms
192.168.1.254 icmp_seq=2 ttl=253 time=42.443 ms
192.168.1.254 icmp_seq=3 ttl=253 time=49.707 ms
192.168.1.254 icmp_seq=4 ttl=253 time=48.877 ms
192.168.1.254 icmp_seq=5 ttl=253 time=42.871 ms
VPCS[2]>
VPCS[2]> ping 192.168.1.1
192.168.1.1 icmp_seq=1 ttl=61 time=53.969 ms
192.168.1.1 icmp_seq=2 ttl=61 time=63.661 ms
192.168.1.1 icmp_seq=3 ttl=61 time=59.821 ms
192.168.1.1 icmp_seq=4 ttl=61 time=55.552 ms
192.168.1.1 icmp_seq=5 ttl=61 time=61.718 ms
VPCS[2]>
OSPF
PEルータで、EIGRP の設定を削除し、OSPF の設定を追加します。
r1(config)#no router eigrp 1
r1(config)#router ospf 1 vrf customer1
r1(config-router)#network 10.2.1.0 0.0.0.255 area 0
r1(config-router)#network 10.2.2.0 0.0.0.255 area 0
r1#show ip protocols vrf customer1
Routing Protocol is "ospf 1"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 10.2.2.254
It is an area border router
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
10.2.1.0 0.0.0.255 area 0
10.2.2.0 0.0.0.255 area 0
Reference bandwidth unit is 100 mbps
Routing Information Sources:
Gateway Distance Last Update
Distance: (default is 110)
r2で、EIGRP の設定を削除し、OSPF の設定を追加します。
r2(config)#no router eigrp 10
r2(config)#router ospf 1
r2(config-router)#network 10.2.1.0 0.0.0.255 area 0
r2(config-router)#network 192.168.1.0 0.0.0.255 area 0
r2#show ip proto
Routing Protocol is "ospf 1"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 192.168.1.254
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
10.2.1.0 0.0.0.255 area 0
192.168.1.0 0.0.0.255 area 0
Reference bandwidth unit is 100 mbps
Routing Information Sources:
Gateway Distance Last Update
10.2.2.254 110 00:00:29
Distance: (default is 110)
r3で、EIGRP の設定を削除し、OSPF の設定を追加します。
r3(config)#no router eigrp 10
r3(config)#router ospf 1
r3(config-router)#network 10.2.2.0 0.0.0.255 area 0
r3(config-router)#network 192.168.2.0 0.0.0.255 area 0
r3#show ip protocols
Routing Protocol is "ospf 1"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 192.168.2.254
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
10.2.2.0 0.0.0.255 area 0
192.168.2.0 0.0.0.255 area 0
Reference bandwidth unit is 100 mbps
Routing Information Sources:
Gateway Distance Last Update
192.168.1.254 110 00:00:37
10.2.2.254 110 00:00:37
Distance: (default is 110)
各ルータでOSPFの学習状況を確認します。
r3#show ip ospf neigh
Neighbor ID Pri State Dead Time Address Interface
10.2.2.254 0 FULL/ - 00:00:35 10.2.2.254 Serial1/0
r3#show ip ospf data
OSPF Router with ID (192.168.2.254) (Process ID 1)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.2.2.254 10.2.2.254 57 0x80000004 0x00BC23 4
192.168.1.254 192.168.1.254 118 0x80000002 0x00DD49 3
192.168.2.254 192.168.2.254 48 0x80000002 0x000F13 3
r3#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
O 10.2.1.0 [110/128] via 10.2.2.254, 00:00:55, Serial1/0
C 10.2.2.0 is directly connected, Serial1/0
O 192.168.1.0/24 [110/138] via 10.2.2.254, 00:00:55, Serial1/0
C 192.168.2.0/24 is directly connected, FastEthernet0/0
r2#show ip ospf neigh
Neighbor ID Pri State Dead Time Address Interface
10.2.2.254 0 FULL/ - 00:00:31 10.2.1.254 Serial1/0
r2#show ip ospf database
OSPF Router with ID (192.168.1.254) (Process ID 1)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.2.2.254 10.2.2.254 103 0x80000004 0x00BC23 4
192.168.1.254 192.168.1.254 161 0x80000002 0x00DD49 3
192.168.2.254 192.168.2.254 96 0x80000002 0x000F13 3
r2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
C 10.2.1.0 is directly connected, Serial1/0
O 10.2.2.0 [110/128] via 10.2.1.254, 00:02:45, Serial1/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
O 192.168.2.0/24 [110/138] via 10.2.1.254, 00:01:30, Serial1/0
r1#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
192.168.2.254 0 FULL/ - 00:00:35 10.2.2.253 Serial1/1
192.168.1.254 0 FULL/ - 00:00:37 10.2.1.253 Serial1/0
r1#show ip ospf data
OSPF Router with ID (10.2.2.254) (Process ID 1)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.2.2.254 10.2.2.254 162 0x80000004 0x00BC23 4
192.168.1.254 192.168.1.254 223 0x80000002 0x00DD49 3
192.168.2.254 192.168.2.254 155 0x80000002 0x000F13 3
r1#show ip route vrf customer1
Routing Table: customer1
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
C 10.2.1.0 is directly connected, Serial1/0
C 10.2.2.0 is directly connected, Serial1/1
O 192.168.1.0/24 [110/74] via 10.2.1.253, 00:03:52, Serial1/0
O 192.168.2.0/24 [110/74] via 10.2.2.253, 00:02:47, Serial1/1
r1#
疎通確認します。
VPCS[2]> ping 192.168.1.254
192.168.1.254 icmp_seq=1 ttl=253 time=50.124 ms
192.168.1.254 icmp_seq=2 ttl=253 time=47.845 ms
192.168.1.254 icmp_seq=3 ttl=253 time=42.570 ms
192.168.1.254 icmp_seq=4 ttl=253 time=46.909 ms
192.168.1.254 icmp_seq=5 ttl=253 time=47.733 ms
VPCS[2]>
VPCS[2]> ping 192.168.1.1
192.168.1.1 icmp_seq=1 ttl=61 time=58.014 ms
192.168.1.1 icmp_seq=2 ttl=61 time=60.475 ms
192.168.1.1 icmp_seq=3 ttl=61 time=60.082 ms
192.168.1.1 icmp_seq=4 ttl=61 time=57.018 ms
192.168.1.1 icmp_seq=5 ttl=61 time=60.332 ms
Discussion