R1#sh ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 20.20.20.1 YES NVRAM up up
FastEthernet3/0 10.10.10.10 YES NVRAM up up
設定
R1(config)#router eigrp 1
R1(config-router)#network 10.0.0.0
R1(config-router)#network 20.0.0.0
R1#sh ip route
C 20.0.0.0/8 is directly connected, FastEthernet0/0
D 172.16.0.0/16 [90/307200] via 20.20.20.20, 00:01:37, FastEthernet0/0
D 40.0.0.0/8 [90/332800] via 20.20.20.20, 00:01:37, FastEthernet0/0
C 10.0.0.0/8 is directly connected, FastEthernet3/0
R2#sh ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 172.16.1.1 YES manual up up
FastEthernet3/0 20.20.20.20 YES NVRAM up up
設定
R2(config-if)#router eigrp 1
R2(config-router)#network 20.0.0.0
R2(config-router)#network 172.16.0.0
R2#sh ip route
C 20.0.0.0/8 is directly connected, FastEthernet3/0
C 172.16.0.0/16 is directly connected, FastEthernet0/0
D 40.0.0.0/8 [90/307200] via 172.16.100.1, 00:04:41, FastEthernet0/0
D 10.0.0.0/8 [90/30720] via 20.20.20.1, 00:02:49, FastEthernet3/0
R3#sh ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 40.40.40.1 YES NVRAM up up
FastEthernet3/0 172.16.100.1 YES manual up up
設定
R3(config)#router eigrp 1
R3(config-router)#network 40.0.0.0
R3(config-router)#network 172.16.0.0
R3#sh ip route
D 20.0.0.0/8 [90/30720] via 172.16.1.1, 00:05:18, FastEthernet3/0
C 172.16.0.0/16 is directly connected, FastEthernet3/0
C 40.0.0.0/8 is directly connected, FastEthernet0/0
D 10.0.0.0/8 [90/33280] via 172.16.1.1, 00:03:26, FastEthernet3/0
この状態でR4→R5へpingが飛ぶ
ログの説明
http://www.infraexpert.com/study/eigrpz7.html
切れた時
R2
*Mar 1 00:50:37.751: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.100.1 (FastEthernet0/0) is down: Interface Goodbye received
R3
*Mar 1 00:50:38.227: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.1.1 (FastEthernet3/0) is down: interface down
確率した時
R2
*Mar 1 01:54:02.463: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.100.1 (FastEthernet0/0) is up: new adjacency
*Mar 1 01:54:02.479: IP-EIGRP(Default-IP-Routing-Table:1): 20.0.0.0/8 – do advertise out FastEthernet0/0
*Mar 1 01:54:02.479: IP-EIGRP(Default-IP-Routing-Table:1): Int 20.0.0.0/8 metric 28160 – 25600 2560
*Mar 1 01:54:02.479: IP-EIGRP(Default-IP-Routing-Table:1): 172.16.0.0/16 – do advertise out FastEthernet0/0
*Mar 1 01:54:02.483: IP-EIGRP(Default-IP-Routing-Table:1): 10.0.0.0/8 – do advertise out FastEthernet0/0
*Mar 1 01:54:02.483: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.0.0.0/8 metric 30720 – 25600 5120
*Mar 1 01:54:02.551: IP-EIGRP(Default-IP-Routing-Table:1): 20.0.0.0/8 – do advertise out FastEthernet0/0
*Mar 1 01:54:02.551: IP-EIGRP(Default-IP-Routing-Table:1): Int 20.0.0.0/8 metric 28160 – 25600 2560
*Mar 1 01:54:02.551: IP-EIGRP(Default-IP-Routing-Table:1): 172.16.0.0/16 – do advertise out FastEthernet0/0
*Mar 1 01:54:02.555: IP-EIGRP(Default-IP-Routing-Table:1): 10.0.0.0/8 – do advertise out FastEthernet0/0
*Mar 1 01:54:02.555: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.0.0.0/8 metric 30720 – 25600 5120
*Mar 1 01:54:02.555: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 01:54:02.603: IP-EIGRP(Default-IP-Routing-Table:1): 20.0.0.0/8 – do advertise out FastEthernet0/0
*Mar 1 01:54:02.607: IP-EIGRP(Default-IP-Routing-Table:1): Int 20.0.0.0/8 metric 28160 – 25600 2560
*Mar 1 01:54:02.607: IP-EIGRP(Default-IP-Routing-Table:1): 172.16.0.0/16 – do advertise out FastEthernet0/0
*Mar 1 01:54:02.607: IP-EIGRP(Default-IP-Routing-Table:1): 10.0.0.0/8 – do advertise out FastEthernet0/0
*Mar 1 01:54:02.611: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.0.0.0/8 metric 30720 – 25600 5120
*Mar 1 01:54:02.611: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 01:54:02.611: IP-EIGRP(Default-IP-Routing-Table:1): Int 40.0.0.0/8 M 307200 – 256000 51200 SM 281600 – 256000 25600
*Mar 1 01:54:02.615: IP-EIGRP(Default-IP-Routing-Table:1): route installed for 40.0.0.0 ()
*Mar 1 01:54:02.631: IP-EIGRP(Default-IP-Routing-Table:1): Int 40.0.0.0/8 metric 307200 – 256000 51200
*Mar 1 01:54:02.635: IP-EIGRP(Default-IP-Routing-Table:1): 40.0.0.0/8 – do advertise out FastEthernet3/0
*Mar 1 01:54:02.635: IP-EIGRP(Default-IP-Routing-Table:1): Int 40.0.0.0/8 metric 307200 – 256000 51200
*Mar 1 01:54:02.643: IP-EIGRP(Default-IP-Routing-Table:1): Int 40.0.0.0/8 metric 307200 – 256000 51200
*Mar 1 01:54:02.907: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 01:54:02.911: IP-EIGRP(Default-IP-Routing-Table:1): Int 40.0.0.0/8 M 307200 – 256000 51200 SM 281600 – 256000 25600
R3
*Mar 1 01:54:02.983: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.1.1 (FastEthernet3/0) is up: new adjacency
*Mar 1 01:54:02.991: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 01:54:02.995: IP-EIGRP(Default-IP-Routing-Table:1): 40.0.0.0/8 – do advertise out FastEthernet3/0
*Mar 1 01:54:02.995: IP-EIGRP(Default-IP-Routing-Table:1): Int 40.0.0.0/8 metric 281600 – 256000 25600
*Mar 1 01:54:02.995: IP-EIGRP(Default-IP-Routing-Table:1): 172.16.0.0/16 – do advertise out FastEthernet3/0
*Mar 1 01:54:03.043: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 01:54:03.043: IP-EIGRP(Default-IP-Routing-Table:1): Int 20.0.0.0/8 M 30720 – 25600 5120 SM 28160 – 25600 2560
*Mar 1 01:54:03.047: IP-EIGRP(Default-IP-Routing-Table:1): route installed for 20.0.0.0 ()
*Mar 1 01:54:03.047: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.0.0.0/8 M 33280 – 25600 7680 SM 30720 – 25600 5120
*Mar 1 01:54:03.051: IP-EIGRP(Default-IP-Routing-Table:1): route installed for 10.0.0.0 ()
*Mar 1 01:54:03.051: IP-EIGRP(Default-IP-Routing-Table:1): 40.0.0.0/8 – do advertise out FastEthernet3/0
*Mar 1 01:54:03.051: IP-EIGRP(Default-IP-Routing-Table:1): Int 40.0.0.0/8 metric 281600 – 256000 25600
*Mar 1 01:54:03.055: IP-EIGRP(Default-IP-Routing-Table:1): 172.16.0.0/16 – do advertise out FastEthernet3/0
*Mar 1 01:54:03.099: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 01:54:03.099: IP-EIGRP(Default-IP-Routing-Table:1): Int 20.0.0.0/8 M 30720 – 25600 5120 SM 28160 – 25600 2560
*Mar 1 01:54:03.103: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.0.0.0/8 M 33280 – 25600 7680 SM 30720 – 25600 5120
*Mar 1 01:54:03.179: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 01:54:03.179: IP-EIGRP(Default-IP-Routing-Table:1): Int 40.0.0.0/8 M 4294967295 – 256000 4294967295 SM 4294967295 – 256000 4294967295
*Mar 1 01:54:03.399: IP-EIGRP(Default-IP-Routing-Table:1): 40.0.0.0/8 – do advertise out FastEthernet3/0
*Mar 1 01:54:03.399: IP-EIGRP(Default-IP-Routing-Table:1): Int 40.0.0.0/8 metric 281600 – 256000 25600
*Mar 1 01:54:03.399: IP-EIGRP(Default-IP-Routing-Table:1): 172.16.0.0/16 – do advertise out FastEthernet3/0
EIGRPをsendする方、receiveする方・・・
EIGRPを有効にしたいインターフェースをネットワークアドレスを指定して、
さらに流したいセグメント情報を設定して無ければ、ルータ間でやりとりしないし
ルーティングテーブルに反映されない
R2#sh ip protocols
Routing Protocol is “eigrp 1”
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 1
EIGRP NSF-aware route hold timer is 240s
Automatic network summarization is in effect
Automatic address summarization:
172.16.0.0/16 for FastEthernet3/0
20.0.0.0/8 for FastEthernet0/0
Maximum path: 4
Routing for Networks:
20.0.0.0
172.16.0.0
Routing Information Sources:
Gateway Distance Last Update
20.20.20.1 90 01:09:13
172.16.100.1 90 00:05:48
Distance: internal 90 external 170
R3# sh ip protocols
Routing Protocol is “eigrp 1”
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 1
EIGRP NSF-aware route hold timer is 240s
Automatic network summarization is in effect
Automatic address summarization:
172.16.0.0/16 for FastEthernet0/0
40.0.0.0/8 for FastEthernet3/0
Maximum path: 4
Routing for Networks:
40.0.0.0
172.16.0.0
Routing Information Sources:
Gateway Distance Last Update
172.16.1.1 90 00:04:29
Distance: internal 90 external 170
クラスレスネットワークの分割
R3(config)#int fa1/0
R3(config-if)#ip address 192.168.100.1 255.255.255.252
R3(config-if)#int fa2/0
R3(config-if)#ip address 192.168.100.101 255.255.255.248
R3(config-if)#router eigrp 1
R3(config-router)#network 192.168.100.0
R2
*Mar 1 02:28:18.911: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 02:28:18.911: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 M 284160 – 256000 28160 SM 28160 – 25600 2560
*Mar 1 02:28:18.911: IP-EIGRP(Default-IP-Routing-Table:1): route installed for 192.168.100.0 ()
*Mar 1 02:28:18.927: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.0/24 – do advertise out FastEthernet3/0
*Mar 1 02:28:18.927: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 metric 284160 – 256000 28160
*Mar 1 02:28:18.931: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 metric 284160 – 256000 28160
R3
*Mar 1 02:28:19.343: IP-EIGRP(Default-IP-Routing-Table:1): route installed for 192.168.100.0 (Summary)
*Mar 1 02:28:19.359: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.0/30 – don’t advertise out FastEthernet3/0
*Mar 1 02:28:19.363: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.0/24 – do advertise out FastEthernet3/0
*Mar 1 02:28:19.363: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 metric 28160 – 25600 2560
*Mar 1 02:28:19.419: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 02:28:19.419: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 M 4294967295 – 256000 4294967295 SM 4294967295 – 256000 4294967295
R2#sh ip route
C 20.0.0.0/8 is directly connected, FastEthernet3/0
C 172.16.0.0/16 is directly connected, FastEthernet0/0
D 40.0.0.0/8 [90/307200] via 172.16.100.1, 00:05:21, FastEthernet0/0
D 10.0.0.0/8 [90/30720] via 20.20.20.1, 01:48:55, FastEthernet3/0
D 192.168.100.0/24 [90/284160] via 172.16.100.1, 00:00:45, FastEthernet0/0 ←集約されている
R3(config-router)#no auto-summary
これをした時のデバッグ↓
R2
*Mar 1 02:29:42.651: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.100.1 (FastEthernet0/0) is resync: peer graceful-restart
*Mar 1 02:29:42.655: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 02:29:42.655: IP-EIGRP(Default-IP-Routing-Table:1): Int 40.0.0.0/8 M 307200 – 256000 51200 SM 281600 – 256000 25600
*Mar 1 02:29:42.655: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/30 M 284160 – 256000 28160 SM 28160 – 25600 2560
*Mar 1 02:29:42.659: IP-EIGRP(Default-IP-Routing-Table:1): route installed for 192.168.100.0 ()
*Mar 1 02:29:42.675: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/30 metric 284160 – 256000 28160
*Mar 1 02:29:42.679: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.0/30 – do advertise out FastEthernet3/0
*Mar 1 02:29:42.679: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/30 metric 284160 – 256000 28160
*Mar 1 02:29:42.727: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming QUERY
R2
*Mar 1 02:29:42.727: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 M 4294967295 – 0 4294967295 SM 4294967295 – 0 4294967295
*Mar 1 02:29:42.735: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 metric 4294967295 – 0 4294967295
*Mar 1 02:29:42.739: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.0/24 – do advertise out FastEthernet3/0
*Mar 1 02:29:42.739: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 metric 4294967295 – 0 4294967295
*Mar 1 02:29:42.835: IP-EIGRP(Default-IP-Routing-Table:1): 20.0.0.0/8 – do advertise out FastEthernet0/0
*Mar 1 02:29:42.835: IP-EIGRP(Default-IP-Routing-Table:1): Int 20.0.0.0/8 metric 28160 – 25600 2560
*Mar 1 02:29:42.835: IP-EIGRP(Default-IP-Routing-Table:1): 172.16.0.0/16 – do advertise out FastEthernet0/0
*Mar 1 02:29:42.839: IP-EIGRP(Default-IP-Routing-Table:1): 10.0.0.0/8 – do advertise out FastEthernet0/0
*Mar 1 02:29:42.839: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.0.0.0/8 metric 30720 – 25600 5120
*Mar 1 02:29:42.839: IP-EIGRP(Default-IP-Routing-Table:1): 40.0.0.0/8 – do advertise out FastEthernet0/0
*Mar 1 02:29:42.859: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming REPLY packet
*Mar 1 02:29:42.859: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 M 4294967295 – 0 4294967295 SM 4294967295 – 0 4294967295
*Mar 1 02:29:47.679: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming REPLY packet
*Mar 1 02:29:47.683: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 M 4294967295 – 256000 4294967295 SM 4294967295 – 256000 4294967295
*Mar 1 02:29:47.683: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.0/24 routing table not updated thru 172.16.100.1
*Mar 1 02:29:47.707: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.0/24 – not in IP routing table
*Mar 1 02:29:47.707: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 metric 4294967295 – 0 4294967295
*Mar 1 02:33:14.707: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 02:33:14.707: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.96/29 M 284160 – 256000 28160 SM 28160 – 25600 2560
*Mar 1 02:33:14.711: IP-EIGRP(Default-IP-Routing-Table:1): route installed for 192.168.100.96 ()
*Mar 1 02:33:14.727: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.96/29 metric 284160 – 256000 28160
*Mar 1 02:33:14.727: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.96/29 – do advertise out FastEthernet3/0
*Mar 1 02:33:14.731: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.96/29 metric 284160 – 256000 28160
R3
Mar 1 02:29:43.035: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.1.1 (FastEthernet3/0) is resync:summary configured
*Mar 1 02:29:43.043: IP-EIGRP(Default-IP-Routing-Table:1): 172.16.0.0/16 – do advertise out FastEthernet3/0
*Mar 1 02:29:43.043: IP-EIGRP(Default-IP-Routing-Table:1): 20.0.0.0/8 – do advertise out FastEthernet3/0
*Mar 1 02:29:43.047: IP-EIGRP(Default-IP-Routing-Table:1): 10.0.0.0/8 – do advertise out FastEthernet3/0
*Mar 1 02:29:43.047: IP-EIGRP(Default-IP-Routing-Table:1): 40.0.0.0/8 – do advertise out FastEthernet3/0
*Mar 1 02:29:43.047: IP-EIGRP(Default-IP-Routing-Table:1): Int 40.0.0.0/8 metric 281600 – 256000 25600
*Mar 1 02:29:43.047: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.0/30 – do advertise out FastEthernet3/0
*Mar 1 02:29:43.051: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/30 metric 28160 – 25600 2560
*Mar 1 02:29:43.131: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 02:29:43.131: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/30 M 4294967295 – 256000 4294967295 SM 4294967295 – 256000 4294967295
*Mar 1 02:29:43.139: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.0/24 – do advertise out FastEthernet3/0
*Mar 1 02:29:43.139: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 metric 4294967295 – 04294967295
*Mar 1 02:29:43.215: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming QUERY packet
*Mar 1 02:29:43.215: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 M 4294967295 – 0 4294967295 SM 4294967295 – 0 4294967295
*Mar 1 02:29:43.275: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.0/24 – do advertise out FastEthernet3/0
*Mar 1 02:29:43.275: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.0/24 metric 4294967295 – 0 4294967295
*Mar 1 02:29:43.339: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 02:29:43.339: IP-EIGRP(Default-IP-Routing-Table:1): Int 20.0.0.0/8 M 30720 – 25600 5120 SM 28160 – 25600 2560
*Mar 1 02:29:43.343: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.0.0.0/8 M 33280 – 25600 7680 SM 30720 – 25600 5120er)#
*Mar 1 02:33:15.087: IP-EIGRP(Default-IP-Routing-Table:1): 192.168.100.96/29 – do advertise out FastEthernet3/0
*Mar 1 02:33:15.087: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.96/29 metric 28160 – 25600 2560
*Mar 1 02:33:15.211: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming UPDATE packet
*Mar 1 02:33:15.215: IP-EIGRP(Default-IP-Routing-Table:1): Int 192.168.100.96/29 M 4294967295 – 256000 4294967295 SM 4294967295 – 256000 4294967295
*Mar 1 02:33:17.051: %LINK-3-UPDOWN: Interface FastEthernet2/0, changed state to up
*Mar 1 02:33:18.051: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet2/0, changed state to up
R2#sh ip route
C 20.0.0.0/8 is directly connected, FastEthernet3/0
C 172.16.0.0/16 is directly connected, FastEthernet0/0
D 40.0.0.0/8 [90/307200] via 172.16.100.1, 00:10:01, FastEthernet0/0
D 10.0.0.0/8 [90/30720] via 20.20.20.1, 01:53:35, FastEthernet3/0
192.168.100.0/24 is variably subnetted, 2 subnets, 2 masks
D 192.168.100.0/30
[90/284160] via 172.16.100.1, 00:04:02, FastEthernet0/0 ←集約解除
D 192.168.100.96/29
[90/284160] via 172.16.100.1, 00:00:30, FastEthernet0/0 ←集約解除
