ccna實(shí)驗(yàn)手冊互聯(lián)神州基本配置

1、BGP_基本配置R1：erface Loack0ip address 1.1.1.1 255.255.255.255 *目前可以做為 router ID!erfaerial1/0ip address 10.1.0.1 255.255.255.0serial restart-delay 0 no fair-queue!router bgp 64512 *私有的 AS 號(hào)no synchronization *默認(rèn)情況下沒有開啟 BGP 的同步,僅當(dāng)通過 IBGP 獲得的路由是本地,即已經(jīng)通過了 IGP(ripf,isis 等),這時(shí)候,路由器才能使用或?qū)⑺ǜ娼o外部的鄰居 bgp log-nei

2、ghbor-changesnetwork 1.1.1.1 mask 255.255.255.255network 10.1.0.0 mask 255.255.255.0 *標(biāo)準(zhǔn)的方式來發(fā)布一個(gè) BGP 網(wǎng)段 network 10.1.1.0 mask 255.255.255.0neighbor 10.1.0.2 remote-as 64513 *手動(dòng)指定所連接的鄰居,以形成鄰接關(guān)系neighbor 10.1.1.3 remote-as 64512 這里也可以用環(huán)回接口的做為源,如果不指明更新的 接口,那么路由更新是從直連的接口出去而對端指的是你的環(huán)回接口,那么對端路由器要做一個(gè)校驗(yàn),看看路由更

3、新的源接口和用neighbor 命令指的接口是否一致,如果不一致,就扔掉數(shù)據(jù)包no auto-summaryR2：erface Loack0ip address 2.2.2.2 255.255.255.255!erfaerial1/0ip address 10.1.0.2 255.255.255.0serial restart-delay 0erfaerial1/2ip address 10.1.2.2 255.255.255.0serial restart-delay 0!router bgp 64513no synchronizationbgp log-neighbor-changesne

4、twork 2.2.2.2 mask 255.255.255.255 *在 BGP 中，network 的特點(diǎn)是：1,必須精確路由和掩碼,2,只起到作用，不建鄰居 3,可 IGP 學(xué)到的路由，并攜帶 Metric和 Next-hopnetwork 10.1.0.0 mask 255.255.255.0network 10.1.2.0 mask 255.255.255.0neighbor 10.1.0.1 remote-as 64512neighbor 10.1.2.3 remote-as 64512 no auto-summaryR3：erface Loack0ip address 3.3.3

5、.3 255.255.255.0!erfaerial1/0ip address 10.1.4.3 255.255.255.0serial restart-delay 0!erfaerial1/1ip address 10.1.1.3 255.255.255.0serial restart-delay 0!erfaerial1/2ip address 10.1.2.3 255.255.255.0serial restart-delay 0!router bgp 64512no synchronizationbgp log-neighbor-changesnetwork 3.3.3.3 mask

6、255.255.255.255network 10.1.1.0 mask 255.255.255.0network 10.1.2.0 mask 255.255.255.0network 10.1.4.0 mask 255.255.255.0neighbor 10.1.1.1 remote-as 64512neighbor 10.1.2.2 remote-as 64513neighbor 10.1.4.4 remote-as 64514 no auto-summaryR4：erface Loack0ip address 4.4.4.4 255.255.255.255!erfaerial1/0ip

7、 address 10.1.4.4 255.255.255.0serial restart-delay 0!erfaerial1/1ip address 10.1.5.4 255.255.255.0serial restart-delay 0!router bgp 64514no synchronizationbgp log-neighbor-changesnetwork 4.4.4.4 mask 255.255.255.255network 10.1.4.0 mask 255.255.255.0network 10.1.5.0 mask 255.255.255.0neighbor 10.1.

8、4.3 remote-as 64512neighbor 10.1.5.5 remote-as 64514 no auto-summaryR5：erface Loack0ip address 5.5.5.5 255.255.255.0!erfaerial1/1ip address 10.1.5.5 255.255.255.0serial restart-delay 0!router bgp 64514no synchronizationbgp log-neighbor-changesnetwork 5.5.5.5 mask 255.255.255.255network 10.1.5.0 mask

9、 255.255.255.0neighbor 10.1.5.4 remote-as 64514 no auto-summaryR1#sh ip protocolsRouting Protocol is bgp 64512*當(dāng)前跑的路由協(xié)議及 AS 號(hào)Outgoing update filter list for all ing update filter list for allIGP synchronization is disablederfaerfais not setis not setAutomatic route summarization is disabledNeighbor(

10、s):Address 10.1.0.210.1.1.3um path: 1FiltIn FiltOut DistIn DistOut Weight RouteMap*鄰居列表Routing Information Sour:Gateway 10.1.1.310.1.0.2Distance 20020Last Update 00:14:0400:15:08Distance: external 20管理距離為 200ernal 200 local 200*在 BGP 中,的管理距離為 20 外部的R1#sh ip route1.0.0.0/32 ibnetted, 1 subnetsC1.1.1.

11、1 is directly connected, Loack02.0.0.0/32 ibnetted, 1 subnetsB2.2.2.2 20/0 via 10.1.0.2, 00:14:124.0.0.0/32 ibnetted, 1 subnetsB4.4.4.4 200/0 via 10.1.4.4, 00:13:0710.0.0.0/24 ibnetted, 5 subnetsB CC10.1.2.0 200/0 via 10.1.1.3, 00:13:5410.1.1.0 is directly connected, Serial1/110.1.0.0 is directly co

12、nnected, Serial1/0B10.1.5.0 200/0 via 10.1.4.4, 00:13:07B10.1.4.0 200/0 via 10.1.1.3, 00:13:54R1#sh ip bgpBGP table veris 12, local router ID is 1.1.1.1Sus codes:ppressed, d dr RIB-failure, S Staleed, h history, * valid, best, i -ernal,Origin codes: i - IGP, e - EGP, ? -pleteNetwork* 1.1.1.1/32* i2.

13、2.2.2/32*i4.4.4.4/32Next Hop 0.0.0.010.1.2.210.1.0.210.1.4.4Metric LocPrf Weight Path000032768 i0 64513 i0 64513 i0 64514 i100100* 10.1.0.0/24* i10.1.1.0/24*i10.1.2.0/24*i10.1.4.0/24*i10.1.5.0/240.0.0.010.1.0.210.1.1.30.0.0.010.1.1.310.1.0.210.1.1.310.1.4.40000000032768 i0 64513 i0 i32768 i0 i0 6451

14、3 i0 i0 64514 i100100100100*代表當(dāng)前激活的,代表最優(yōu)的路徑R3#sh ip bgp summaryBGP router identifier 3.3.3.3, local AS number 64512BGP table veris 15, main routing table ver158 network entries using 808 bytes of memory13 path entries using 624 bytes of memory5 BGP pattribute entries using 300 bytes of memory2 BGP AS-PATH entries using 48 bytes of memory0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP usin