Sorry, ip 172.16.0.6 is the address of the vista machine on otherside of router.
I will post the results of the pupil-laptop pinging the server: pu...@pupil-laptop:~$ sudo tcpdump -i eth0 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes 21:59:18.983781 IP pupil-laptop.local.ssh > 172.16.0.6.53471: P 1475800150:1475800266(116) ack 4280506126 win 566 22:00:03.989533 IP 172.16.0.6.53471 > pupil-laptop.local.ssh: . ack 116 win 63 22:00:03.989668 IP pupil-laptop.local.ssh > 172.16.0.6.53471: P 116:232(116) ack 1 win 566 21:59:18.985065 IP pupil-laptop.local.48762 > 212.23.3.100.domain: 26768+ PTR? 6.0.16.172.in-addr.arpa. (41) 21:59:19.188086 IP 172.16.0.6.53471 > pupil-laptop.local.ssh: . ack 232 win 62 21:59:21.377730 IP 172.16.0.6.53460 > pupil-laptop.local.ssh: P 3443212094:3443212146(52) ack 179455010 win 62 21:59:21.378147 IP pupil-laptop.local.ssh > 172.16.0.6.53460: P 1:53(52) ack 52 win 566 21:59:21.710276 IP 172.16.0.6.53460 > pupil-laptop.local.ssh: P 52:104(52) ack 53 win 68 21:59:21.710635 IP pupil-laptop.local.ssh > 172.16.0.6.53460: P 53:105(52) ack 104 win 566 21:59:22.041935 IP 172.16.0.6.53460 > pupil-laptop.local.ssh: . ack 105 win 68 21:59:22.043072 IP 172.16.0.6.53460 > pupil-laptop.local.ssh: P 104:156(52) ack 105 win 68 21:59:22.043358 IP pupil-laptop.local.ssh > 172.16.0.6.53460: P 105:157(52) ack 156 win 566 21:59:22.261685 IP 172.16.0.6.53460 > pupil-laptop.local.ssh: . ack 157 win 68 Thats with this command running on another ssh session: pu...@pupil-laptop:~$ ping 172.16.0.254 PING 172.16.0.254 (172.16.0.254) 56(84) bytes of data. 64 bytes from 172.16.0.254: icmp_seq=1 ttl=255 time=0.194 ms 64 bytes from 172.16.0.254: icmp_seq=2 ttl=255 time=0.183 ms Seems to be no icmp in there, dont know if thats significant. I am still not knowing why I cant ping both ways or why dns wont resolve on the 192.168.0.0/24 subnet. Christiano Farina Haesbaert wrote: > > On 22/01/2009, at 07:11, duxbuz wrote: > >> Still no joy with this issue. >> >> I was asked to try: >> >>> Try this, >> . >>> Go the the ubuntu machine (network 192...) and listen to icmp >>> packets in >> the interface connected to the >172... network. >>> >>> Then get a machine from network 172... and try to ping it. >>> >>> You did a tcpdump on the pf pseudo-interface before but you're >>> problem >> doesn't seem to be routing and >or pf filter rules. >> >>> If you see ICMP requests coming from another ip, you have a nat in >>> between >> and that would justify >your "one way ping". >> >> I got these results from this: >> >> tcpdump: verbose output suppressed, use -v or -vv for full protocol >> decode >> >> listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes >> >> 08:30:28.359774 IP pupil-laptop.local.ssh > 172.16.0.6.49797: P >> 1505958084:15059 >> 58280(196) ack 379641432 win 566 >> > Whats the ip of pupil-laptop.local ? >> >> 08:30:28.361092 IP pupil-laptop.local.50398 > 212.23.3.100.domain: >> 33472+ >> PTR? 6 >> .0.16.172.in-addr.arpa. (41) >> >> 08:30:28.361960 IP 172.16.0.6.49797 > pupil-laptop.local.ssh: . ack >> 196 win >> 66 >> >> 08:30:28.375114 IP pupil-laptop.local > 172.168.0.6: ICMP echo >> request, id >> 4893 >> , >> seq 5, >> length 64 > > Is 172.168.0.6 the correct ip for the server ? > Is that what you typed in pupil-laptop ? > You can say that the pupil-laptop packets are arriving at the > destination, but they get there with ip 172.168.0.6, which seems not > to be the server, so it passes the packet forward to the default route. > >> 08:30:29.375137 IP pupil-laptop.local > 172.168.0.6: ICMP echo >> request, id >> 4893 >> , >> seq 6, >> length 64 >> >> 08:30:30.375146 IP pupil-laptop.local > 172.168.0.6: ICMP echo >> request, id >> 4893 >> , >> seq 7, >> length 64 >> >> 08:30:31.375134 IP pupil-laptop.local > 172.168.0.6: ICMP echo >> request, id >> 4893 >> , >> seq 8, >> length 64 >> >> 08:30:32.375144 IP pupil-laptop.local > 172.168.0.6: ICMP echo >> request, id >> 4893 >> , >> seq 9, >> length 64 >> >> 08:30:33.359178 IP pupil-laptop.local.50845 > 212.23.6.100.domain: >> 33472+ >> PTR? 6 >> .0.16.172.in-addr.arpa. (41) >> >> 08:30:33.375117 IP pupil-laptop.local > 172.168.0.6: ICMP echo >> request, id >> 4893 >> , seq >> 10, length 64 >> >> 08:30:34.375156 IP pupil-laptop.local > 172.168.0.6: ICMP echo >> request, id >> 4893, >> >> >> >> Does this look irregular? >> >> >> >> >> >> Martin Toft-2 wrote: >>> >>> What happens when you ping from the OpenBSD router? Does any of the >>> other equipment reply? >>> >>> The Ubuntu machine's firewall settings can be seen by running 'sudo >>> iptables -L -v -n'. Are you sure it doesn't block incoming ICMP >>> requests? >>> >>> Martin >>> >>> >>> >> >> -- >> View this message in context: >> http://www.nabble.com/Router-ping-one-way-only-tp21569634p21600393.html >> Sent from the openbsd user - misc mailing list archive at Nabble.com. >> > > Christiano Farina Haesbaert > [email protected] > > > -- View this message in context: http://www.nabble.com/Router-ping-one-way-only-tp21569634p21633458.html Sent from the openbsd user - misc mailing list archive at Nabble.com.
