[/tr][/tr][/tr]

Etian ITAA会员 注册时间: 21-4月-2006 所在地: India 在线状态: 离线 发帖数: 278	发表: 09-7月-2006 15:59 | IP 221.197.226.175 RIP版本2会在边界处把子网自动汇总成主类路由,可以用no auto-summary命令可以关闭 topo: 148.1.1.0/24---r1---------------------------r3----loopback 0(3.3.3.3/24) / \ ; ; / s1 s0 s0 148.1.1.2/24 192.1.1.1/24 192.1.1.2/24 ps:*代表路由器 r3(RIPv1)和r1(RIPv2)通讯，不管r1(RIPv2)是否自动汇总，r1(RIPv2)发送RIPv2的更新， 忽略或不理睬r3(RIPv1)的更新信息；r3(RIPv1)发送RIPv1的更新，忽略或不理睬r2(RIPv2)的更新信 息 导致分别采用v1和v2的路由器r3和r1在不同网络下ping不通，不可路由 v1 Default version control: send version 2, receive version 2 Interface &am p;am p;am p;nb sp; Send Recv Triggered RIP Key-chain Serial0 ; ; ; ; 2 2 Serial1 ; ; ; ; 2 2 v2 Default version control: send version 1, receive version 1 Interface &am p;am p;am p;nb sp; Send Recv Triggered RIP Key-chain Serial0 ; ; ; ; 1 1 --------------------------------------------- r1采用RIPv2 interface Serial0 ip address 192.1.1.1 255.255.255.0 clockrate 64000 ! interface Serial1 ip address 148.1.1.2 255.255.255.0 clockrate 64000 ! router rip version 2 network 148.1.0.0 network 192.1.1.0 neighbor 192.1.1.2 neighbor 148.1.1.1 ---- r1#ping 3.3.3.3 02:17:53: IP: s=192.1.1.1 (local), d=3.3.3.3, len 100, unroutable 02:17:55: IP: s=192.1.1.1 (local), d=3.3.3.3, len 100, unroutable 02:17:57: IP: s=192.1.1.1 (local), d=3.3.3.3, len 100, unroutable ---- r1#show ip rou Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, 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 C 192.1.1.0/24 is directly connected, Serial0 148.1.0.0/24 is subnetted, 1 subnets C 148.1.1.0 is directly connected, Serial1 ---- r1#show ip pro Routing Protocol is "rip" Sending updates every 30 seconds, next due in 13 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is Incoming update filter list for all interfaces is Redistributing: rip Neighbor(s): 192.1.1.2 148.1.1.1 Default version control: send version 2, receive version 2 Interface &am p;am p;am p;nb sp; Send Recv Triggered RIP Key-chain Serial0 ; ; ; ; 2 2 Serial1 ; ; ; ; 2 2 Automatic network summarization is in effect Routing for Networks: 148.1.0.0 192.1.1.0 Routing Information Sources: Gateway Distance Last Update 148.1.1.1 &am p;am p;am p;nb sp; 120 00:43:15 192.1.1.2 &am p;am p;am p;nb sp; 120 00:46:47 Distance: (default is 120) ------------------------------------------------------------ ---------- r3采用RIPv1 interface Loopback0 ip address 3.3.3.3 255.255.255.0 ! interface Serial0 ip address 192.1.1.2 255.255.255.0 ! router rip version 1 network 3.0.0.0 network 192.1.1.0 neighbor 192.1.1.1 ! ---- r3#ping 148.1.1.2 02:17:56: IP: s=3.3.3.3 (local), d=148.1.1.2, len 100, unroutable 02:17:58: IP: s=3.3.3.3 (local), d=148.1.1.2, len 100, unroutable 02:18:00: IP: s=3.3.3.3 (local), d=148.1.1.2, len 100, unroutable 02:18:02: IP: s=3.3.3.3 (local), d=148.1.1.2, len 100, unroutable 02:18:04: IP: s=3.3.3.3 (local), d=148.1.1.2, len 100, unroutable ---- r3#sh ip ro Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, 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 3.0.0.0/24 is subnetted, 1 subnets C 3.3.3.0 is directly connected, Loopback0 C 192.1.1.0/24 is directly connected, Serial0 ---- r3#sh ip pro Routing Protocol is "rip" Sending updates every 30 seconds, next due in 26 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is Incoming update filter list for all interfaces is Redistributing: rip Neighbor(s): 192.1.1.1 Default version control: send version 1, receive version 1 Interface &am p;am p;am p;nb sp; Send Recv Triggered RIP Key-chain Loopback0 &am p;am p;am p;nb sp; 1 1 Serial0 ; ; ; ; 1 1 Automatic network summarization is in effect Routing for Networks: 3.0.0.0 192.1.1.0 Routing Information Sources: Gateway Distance Last Update 192.1.1.1 &am p;am p;am p;nb sp; 120 00:14:04 Distance: (default is 120) ---------------------- 若r1和r3都是RIPv2 则可路由 若r3 有环回口，则r3上发rip更新到环回口，但是接收的时候忽略环回口更新，因为源与目的地址相同 发送 04:01:43: RIP: sending v2 update to 224.0.0.9 via Loopback0 (3.3.3.3) 04:01:43: RIP: build update entries 04:01:43: 148.1.0.0/16 via 0.0.0.0, metric 2, tag 0 04:01:43: 192.1.1.0/24 via 0.0.0.0, metric 1, tag 0 应答 04:01:43: RIP: ignored v2 packet from 3.3.3.3 (sourced from one of our addresses) ----------------------- v1更新是广播地址255.255.255.255 v2更新是组播地址224.0.0.9 单播需要配置neighbor [Neighbor address] ----------------------- v2下默认自动汇总，则148.1.1.0汇总为B类地址148.1.0.0/16 03:51:46: RIP: sending v2 update to 224.0.0.9 via Serial0 (192.1.1.1) 03:51:46: RIP: build update entries 03:51:46: 148.1.0.0/16 via 0.0.0.0, metric 1, tag 0 03:51:46: RIP: sending v2 update to 192.1.1.2 via Serial0 (192.1.1.1) 03:51:46: RIP: build update entries 03:51:46: 148.1.0.0/16 via 0.0.0.0, metric 1, tag 0 若是关闭自动汇总，则148.1.1.0不进行汇总，仍为子网地址148.1.1.0/24 03:54:09: RIP: sending v2 update to 224.0.0.9 via Serial0 (192.1.1.1) 03:54:09: RIP: build update entries 03:54:09: 148.1.1.0/24 via 0.0.0.0, metric 1, tag 0 03:54:09: RIP: sending v2 update to 192.1.1.2 via Serial0 (192.1.1.1) 03:54:09: RIP: build update entries 03:54:09: 148.1.1.0/24 via 0.0.0.0, metric 1, tag 0 ----------------------- 有乱码，“ ; &nbs p;” 直接看作空格就可以！ __________________ 心有惊雷，而面若平湖者，可拜上将军！ 真的勇士，敢于直面淋漓的鲜血，敢于正视惨淡的人生！！
返回顶端
[/td]
gotolab Admin Group 注册时间: 05-8月-2004 所在地: United States 在线状态: 在线 发帖数: 577	发表: 09-7月-2006 16:33 | IP 221.197.226.175 148.1.1.0/24---*----------------------*-----loopback 0(3.3.3.3/24) / \ / s1 s0 s0 148.1.1.2/24 192.1.1.1/24 192.1.1.2/24 多看RFC，多学字符画图 __________________ *************************** E-mail:gotolab@gmail.com QQ:200306 欢迎用本站短信息方式留言 ***************************
返回顶端
[/td]
gotolab Admin Group 注册时间: 05-8月-2004 所在地: United States 在线状态: 在线 发帖数: 577	发表: 09-7月-2006 16:35 | IP 221.197.226.175 b b b-----b \ | | \ | | b---b b------b / \ / ; KEY.... / \/ b C ; C = Core (Initial Group Key Dist'n Centre) / \ A, B, b = non-core routers / \ / \ ; ======= LAN where host h is located B b------b \ \ NOTE: Only one core is shown, but typically host h A a CBT tree is likely to comprise several. o | ===================== __________________ *************************** E-mail:gotolab@gmail.com QQ:200306 欢迎用本站短信息方式留言 ***************************
返回顶端
[/td]
Etian ITAA会员 注册时间: 21-4月-2006 所在地: India 在线状态: 离线 发帖数: 278	发表: 09-7月-2006 16:44 | IP 221.197.226.175 惭愧，还没有见过RFC文档长什么样呢。。 我会有意识的去看的。。。 __________________ 心有惊雷，而面若平湖者，可拜上将军！ 真的勇士，敢于直面淋漓的鲜血，敢于正视惨淡的人生！！

又看见好文了
上来顶一下

哈哈，欢迎欢迎。

自己动手去看看