EqLlyHJ5w6,694hQRgLWm
华三实验大全之BGP过滤控制---Filter-policy华三实验大全之BGP过滤控制---Filter-policy 实验名称:BGP过滤控制---filter-policy 实验目的: R1把R3上的3.3.3.3过滤掉 实验拓扑: [R1-bgp]display bgp routing-table Total Number of Routes: 4 BGP Local router ID is 1.1.1.1 Status codes: * - valid, > - best, d - damped, h - history, i - internal, s - suppressed, S - Stale Origin : i - IGP, e - EGP, ? - incomplete Network NextHop MED LocPrf PrefVal Path/Ogn *> 1.1.1.1/32 0.0.0.0 0 0 i *> 2.2.2.2/32 192.168.1.2 0 0 200i *> 3.3.3.3/32 192.168.1.2 0 200i *> 172.16.1.1/32 192.168.1.2 0 200i [R1]bgp 100 [R1-bgp]filter-policy ip-prefix 1 import [R1]ip ip-prefix 1 index 10 deny 3.3.3.3 32 [R1]ip ip-prefix 1 此处还要一个命令,相当与允许所有。下面有!! [R1]display bgp routing-table Total Number of Routes: 1 BGP Local router ID is 1.1.1.1 Status codes: * - valid, > - best, d - damped, h - history, i - internal, s - suppressed, S - Stale Origin : i - IGP, e - EGP, ? - incomplete Network NextHop MED LocPrf PrefVal Path/Ogn *> 1.1.1.1/32 0.0.0.0 0 0 i 为什么只拒绝了3.3.3.3的,2.2.2.2和172.16.1.1的也被拒绝了呢? 下面两个命令是一样的!我用的上面的命令! [R1]ip ip-prefix 1 permit 0.0.0.0 0 greater-equal 0 less-equal 32 [R1]ip ip-prefix 1 index 20 permit 0.0.0.0 0 greater-equal 0 less-equal 32
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