[c-nsp] multicast filter / one way - solved

[liviu.pislaru at gmail.com]

hello,
i've changed R2 from 3550 to 3560 and that solved the problem.
R2 - 3560 - c3560-advipservicesk9-mz.122-25.SEE3.bin
i'm pretty sure this is a bug.
--
liviu.

On Saturday 28 April 2007 22:44, Liviu Pislaru wrote:
> hello,
>
> i have the topology:
> R1 (SVI 460) ---- PE (SVI460/xconnect) ----EoMPLS----PE (SVI460/xconnect)
> ---- R2 (SVI 460)
>
> R1 - 7613 - s72033-advipservicesk9_wan-mz.122-33.SRA3.bin
> R2 - 3550 - c3550-ipservicesk9-mz.122-25.SEE.bin
> PE - 3750-ME (both) - c3750me-i5k91-mz.122-25.SEG1.bin
>
> i can't establish OSPF between R1(x.x.x.61/30) and R2(x.x.x.62/30)  because
> hello packets sent by R2 are not received by R1:
>
> - both interfaces Vlan 460 are up & runn with only one primary /30 ip
> address. - ospf area number is 1 (on both R1 and R2)
> - no stub or nssa area
> - hello and dead timer values are the same
> - ospf enabled on both interfaces SVI 460 of R1 and R2
> - no acl, no multicast filtering on switchports
>
> R1#sh ip ospf interface vlan 460 | i Hello
>   Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
>     Hello due in 00:00:03
>
> R2#sh ip ospf interface vlan 460 | i Hello
>   Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
>     Hello due in 00:00:07
>
> R1# debug ip ospf hello
> Apr 28 22:26:21 EETDST: OSPF: Send hello to 224.0.0.5 area 1 on Vlan460
> from x.x.x.62 Apr 28 22:26:31 EETDST: OSPF: Send hello to 224.0.0.5 area 1
> on Vlan460 from x.x.x.62 Apr 28 22:26:41 EETDST: OSPF: Send hello to
> 224.0.0.5 area 1 on Vlan460 from x.x.x.62
>
> R2# debug ip ospf hello
> Apr 28 22:26:21 EETDST: OSPF: Send hello to 224.0.0.5 area 1 on Vlan460
> from x.x.x.62 Apr 28 22:26:25 EETDST: OSPF: Rcv hello from x.x.x.61 area 1
> from Vlan460 x.x.x.61 Apr 28 22:26:25 EETDST: OSPF: End of hello processing
>
>
>
> R1# ping 224.0.0.5
> Reply to request 0 from x.x.x.62, 16 ms
> (R1 send multicast, R2 receive multicast and respond unicast)
>
> R2# ping 224.0.0.5
> (no answer because R2 send multicast but R1 doesn't receive it)
>
> does anyone experienced this ?
> it is possible that some how multicast be filtered only one way ?
>
> p.s. - with the same config on all devices but IOS
> c3550-i5q3l2-mz.121-22.EA2.bin on R2, R2 hadn't been sending any hello
> packet.
>
>
> --
> liviu.
>
>
>
>
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