Strange network problems on ppp interface
As of yesterday, I've been having some strange problems connecting
through my Ricochet modem. I'm able to connect and ping places just
fine; however, all useful connections (e.g., telnet, ftp, or http)
fail: with telnet, for instance, I get the standard connect messages
Trying 128.32.183.1...
Connected to bosco.berkeley.edu.
Escape character is '^]'.
but then no welcome message. There's a tcpdump of such an attempt
after my signature. I'd suspect a packet filtering problem, but I'm
able to connect using my EtherNet card with no problem.
The only change in my configuration that seems like it might be
relevant is that I had just upgraded to the latest potato, after 5
days. The only packages upgraded that seem like they could possibly be
relevant are hostname and libc6.
Anyone have any ideas what could cause this kind of problem? Any help
is greatly appreciated.
Thanks,
Dylan Thurston
tcpdump follows:
13:18:58.493742 204.179.128.200.1102 > 207.69.194.216.ftp: FP 891443817:891443823(6) ack 890014480 win 16060 <nop,nop,timestamp 1471784 933090531> (DF)
13:19:13.180204 204.179.128.200.1039 > 128.32.136.9.domain: 61999+ A? bosco.berkeley.edu. (36)
13:19:14.523709 128.32.136.9.domain > 204.179.128.200.1039: 61999* 1/4/7 (260)
13:19:14.527411 204.179.128.200.1103 > 128.32.183.1.telnet: S 985306204:985306204(0) win 16060 <mss 1460,sackOK,timestamp 1473387 0,nop,wscale 0> (DF) [tos 0x10]
13:19:14.873703 128.32.183.1.telnet > 204.179.128.200.1103: S 3402697896:3402697896(0) ack 985306205 win 17520 <mss 1460> (DF)
13:19:14.873862 204.179.128.200.1103 > 128.32.183.1.telnet: . ack 1 win 16060 (DF) [tos 0x10]
13:19:14.918216 204.179.128.200.1103 > 128.32.183.1.telnet: P 1:28(27) ack 1 win 16060 (DF) [tos 0x10]
13:19:17.913712 204.179.128.200.1103 > 128.32.183.1.telnet: P 1:28(27) ack 1 win 16060 (DF) [tos 0x10]
13:19:22.493719 204.179.128.200.1102 > 207.69.194.216.ftp: FP 0:6(6) ack 1 win 16060 <nop,nop,timestamp 1474184 933090531> (DF)
13:19:23.913708 204.179.128.200.1103 > 128.32.183.1.telnet: P 1:28(27) ack 1 win 16060 (DF) [tos 0x10]
10 packets received by filter
0 packets dropped by kernel
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