rohc team mailing list archive

[Josephine Kakande <jnkakande@xxxxxxxxx>]

Hi Didier,

Could you tell me where the packet statistics for the tunnel tool
compressor and decompressor are shown (from the print_decomp_stats and
print_comp_stats methods)?
The statistics aren't displayed when I run rohctunnel... how can the
stats_comp  and stats_decomp file contents be viewed? I've tried I/O
redirection but that hasn't worked..

Thanks and regards,
Josephine

On 8/13/09, Didier Barvaux <didier.barvaux@xxxxxxxxxxxxxxxxxxxx> wrote:
> Josephine,
>
>> Just an update: I'm now able to ping machine B (10.0.0.2) from
>> machine A (10.0.0.1) even over a switched network. The tunnel tool
>> works fine.
>
> It's great. Thanks for the positive feedback.
>
> Didier
>
>
>> On Wed, Aug 12, 2009 at 4:32 PM, Josephine Kakande
>> <jnkakande@xxxxxxxxx>wrote:
>>
>> >
>> > Didier,
>> >
>> >
>> >> > > The route toward network 10.0.0.0/24 is not present. It should
>> >> > > be setup when the rohc0 interface will become UP and RUNNING.
>> >> > > Please check that the route is present after running the 'ip
>> >> > > link set rohc0 up' command.
>> >> > >
>> >> >
>> >> > Thanks, I set up the interface correctly, but still could not
>> >> > ping - the output was:
>> >> >
>> >> > :~# ping 10.0.0.2
>> >> > PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
>> >> > ping: sendmsg: No buffer space available
>> >> > ping: sendmsg: No buffer space available
>> >>
>> >> Ok, that did not fix the problem.
>> >>
>> >>
>> >> > > There is an additional thing that looks strange to me. The
>> >> > > ping from machine A to machine B gets a TTL of 57. The ping
>> >> > > from B to A gets a TTL of 63. Beside the fact they are
>> >> > > different (is there different paths to go from one machine to
>> >> > > the other in your network ?), it shows that you have at least
>> >> > > one router between the 2 machines. They could be the root of
>> >> > > the problem. Could you please test the tunnel tool with 2
>> >> > > machines on the same Ethernet link to see if it works ?
>> >> > >
>> >> >
>> >> > I still couldn't ping even when they were directly connected:
>> >> >
>> >> > *Machine A:*
>> >> >
>> >> > [...]
>> >> >
>> >> > *Machine B:*
>> >> >
>> >> > [...]
>> >>
>> >> Your network setup seems fine now. There is probably a problem with
>> >> rohctunnel. Could you setup the tunnel once again and send only one
>> >> ICMP Echo Request in it with the following command on machine A :
>> >>  $ ping -c 1 10.0.0.2
>> >>
>> >> It should failed. When the ping command returns, could you please
>> >> send me all the traces printed by the 2 rohctunnel commands on
>> >> machine A and machine B ? Put the logs as attachments to avoid
>> >> line wrapping please.
>> >
>> >
>> > It actually worked! I'm not sure why it was different this time,
>> > but the ping was successful:
>> >
>> > *Machine A*
>> >
>> > # ip link set rohc0 up
>> > # ip -4 addr add 10.0.0.1/24 dev rohc0
>> > # ip -6 addr add 2001:eeee::1/64 dev rohc0
>> > # ping -c 1 10.0.0.2
>> > PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
>> > 64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=7.84 ms
>> >
>> > --- 10.0.0.2 ping statistics ---
>> > 1 packets transmitted, 1 received, 0% packet loss, time 0ms
>> > rtt min/avg/max/mdev = 7.843/7.843/7.843/0.000 ms
>> >
>> >
>> > Please find the logs attached..
>> >
>> > Many thanks.
>> >
>> > Regards,
>> > Josephine
>> >
>> >
>
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