[Xorp-users] Xorp PIM-SM over GRE issue?

[Jean-Pascal Billaud]

So I sync'd top of the tree and I still see the same issue. Do you guys see something wrong with my setup? Do I have the right expectations?

One weird thing is that the tunnel address 192.168.10.1 is in the Address List Option of the PIM HELLO message... 

[ 2011/04/29 10:28:22.210023 TRACE xorp_pimsm4 PIM ] pim_send: TX PIM_HELLO from 192.168.1.253 to 224.0.0.13 on vif eth0
[ 2011/04/29 10:28:23.6958  INFO xorp_rtrmgr:10153 RTRMGR rtrmgr/task.cc:2242 run_task ] No more tasks to run
[ 2011/04/29 10:28:23.434028 TRACE xorp_pimsm4 PIM ] pim_send: TX PIM_HELLO from 192.168.1.253 to 224.0.0.13 on vif tun0 <=== why not from 192.168.10.1?

20:33:45.443462 IP (tos 0xc0, ttl 1, id 18031, offset 0, flags [none], proto PIM (103), length 64)
    192.168.1.253 > 224.0.0.13: PIMv2, length 44
        Hello, cksum 0xcfa6 (correct)
          Hold Time Option (1), length 2, Value: 35s
            0x0000:  0023
          LAN Prune Delay Option (2), length 4, Value:
            T-bit=0, LAN delay 500ms, Override interval 2500ms
            0x0000:  01f4 09c4
          DR Priority Option (19), length 4, Value: 1
            0x0000:  0000 0001
          Generation ID Option (20), length 4, Value: 0x3a13fe69
            0x0000:  3a13 fe69
          Address List Option (24), length 6, Value:
            192.168.10.1
            0x0000:  0100 c0a8 0a01

Note that tun0 (192.168.10.1) is built on top of eth0 (192.168.1.253)...

Also just to confirm the GRE tunnel is well in place, below is a tcpdump on eth0:

10:24:39.617109 IP (tos 0x0, ttl 255, id 0, offset 0, flags [DF], proto GRE (47), length 108)
    192.168.1.253 > 192.168.2.253: GREv0, Flags [none], length 88
        IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84)
    192.168.10.1 > 192.168.10.2: ICMP echo request, id 10034, seq 18, length 64

--jp

> -----Original Message-----
> From: Jeff Mitchell [mailto:jmitchell at ll.mit.edu]
> Sent: Friday, April 29, 2011 5:34 AM
> To: Jean-Pascal Billaud
> Subject: Re: [Xorp-users] Xorp PIM-SM over GRE issue?
> 
> On 4/29/2011 1:16 AM, Jean-Pascal Billaud wrote:
> > Hey Ben,
> >
> > I am running ubuntu 10.10 server 64bit
> >
> > Linux promd-1n-dhcp198 2.6.35-22-server #33-Ubuntu SMP Sun Sep 19
> 20:48:58 UTC 2010 x86_64 GNU/Linux
> >
> > $>git log
> > commit 7a4f917e23ff01eeef26513404b3a4913af131da
> > Merge: 783b88d 323cbc6
> > Author: Ben Greear<greearb at candelatech.com>
> > Date:   Sat Apr 23 08:32:02 2011 -0700
> 
> You need to update git again. Ubuntu 10.04 LTS is not affected but
> 10.10
> may very well be. Update to 4282c51b or newer.
> 
> --Jeff