Hi, 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.
Thanks a lot, Josephine On Wed, Aug 12, 2009 at 4:32 PM, Josephine Kakande <jnkaka...@gmail.com>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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