OSPF Point to Multipoint Network

Discussion in 'Cisco' started by James, Jan 20, 2008.

  1. James

    James Guest

    I have question, i hope you guy's can help me out. Wel; it would be
    hard to explain but let me try.

    We have point to multipoint with wireless PMP connectivity and
    utilizing 192.168.50.32/29 pool in network.

    RTR1<Distributed Router>
    interface FastEthernet0/0
    ip address 192.168.50.33 255.255.255.248
    ip ospf network point-to-multipoint
    ip ospf priority 0
    <omitted>
    end

    RTR2<Site 1>
    interface FastEthernet0/0
    ip address 192.168.50.34 255.255.255.248
    ip ospf network point-to-multipoint
    ip ospf priority 0
    <omitted>
    end

    RTR3<Site 2>
    interface FastEthernet0/0
    ip address 192.168.50.35 255.255.255.248
    ip ospf network point-to-multipoint
    ip ospf priority 0
    <omitted>
    end

    PS: Rest of the IP's from pool are assigned to PMP Wireless
    modems.

    Now my question is that, when these routes come into core router as O
    IA, It does show complete /29 block in its routing table

    Core>sh ip route | in 192.168.50.32
    Core>
    Core>
    <no /net>
    rather then coming in /29 block then routes are advertising as a /32

    Core>sh ip route | in 192.168.50.33
    O IA 192.168.50.33/32 [110/2] via x.x.x.x
    Core>sh ip route | in 192.168.50.34
    O IA 192.168.50.34/32 [110/2] via x.x.x.x
    Core>sh ip route | in 192.168.50.35
    O IA 192.168.50.35/32 [110/2] via x.x.x.x

    Why 192.168.50.32/29 block is not coming core ???
    Can any one help ??

    What if i use: ip ospf network point-to-multipoint nonbroadcast, will
    it solve my problem ??
    i hope i try to clarify. Please do let me know if something missing

    BR,
    JK
    James, Jan 20, 2008
    #1
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