<< | Thread Index | >> ]    [ << | Date Index | >> ]

Subject: Re: CIPE-win32 v2.0-pre2 -> CIPE 1.4.3 = frame errors
From: Michael Kelly <mjk,AT,art-render,DOT,com>
Date: Wed, 22 Nov 2000 16:22:33 +0100
In-reply-to: <3A1ACAED.77317E75@art-render.com>

Ville et al,
 
The following is the output from tcpdump on the linux box when doing a
'ping 192.168.1.117' on the W2K laptop.

# tcpdump -nl -x -s 512 -i eth0 "dst port 5997"
tcpdump: listening on eth0
15:28:46.006063 62.253.146.119.5997 > 192.168.1.113.5997: udp 60
                         4500 0058 00db 0000 7611 b02c 3efd 9277
                         c0a8 0171 176d 176d 0044 3cfe 4500 003c
                         00da 0000 8001 b29d c0a8 0484 c0a8 0175
                         0800 4a5c 0200 0100 6162 6364 6566 6768
                         696a 6b6c 6d6e 6f70 7172 7374 7576 7761
                         6263 6465 6667 6869
15:28:47.496913 62.253.146.119.5997 > 192.168.1.113.5997: udp 60
                         4500 0058 00dd 0000 7611 b02a 3efd 9277
                         c0a8 0171 176d 176d 0044 3cfe 4500 003c
                         00dc 0000 8001 b29b c0a8 0484 c0a8 0175
                         0800 495c 0200 0200 6162 6364 6566 6768
                         696a 6b6c 6d6e 6f70 7172 7374 7576 7761
                         6263 6465 6667 6869
15:28:48.460074 62.253.146.119.5997 > 192.168.1.113.5997: udp 60
                         4500 0058 00df 0000 7611 b028 3efd 9277
                         c0a8 0171 176d 176d 0044 3cfe 4500 003c
                         00de 0000 8001 b299 c0a8 0484 c0a8 0175
                         0800 485c 0200 0300 6162 6364 6566 6768
                         696a 6b6c 6d6e 6f70 7172 7374 7576 7761
                         6263 6465 6667 6869
15:28:49.465185 62.253.146.119.5997 > 192.168.1.113.5997: udp 60
                         4500 0058 00e1 0000 7611 b026 3efd 9277
                         c0a8 0171 176d 176d 0044 3cfe 4500 003c
                         00e0 0000 8001 b297 c0a8 0484 c0a8 0175
                         0800 475c 0200 0400 6162 6364 6566 6768
                         696a 6b6c 6d6e 6f70 7172 7374 7576 7761
                         6263 6465 6667 6869

Any help in verifying the checksums etc. would be appreciated.

Additional (hopefully useful) information:
I have two other CIPE devices running on the Linux box.
cipcb0 is peered with a CIPE 1.2.0/Linux-2.2.9 system in the US and
cipcb1 is peered with a CIPE 1.4.3/Linux-2.2.16 system here in
Cambridge.
Both of these links work flawlessly (through the firewall as well).

Also, doing an 'ifconfig cipcb2' reports slightly different results
depending on whether encryption is enabled or not.
With no encryption ifconfig reports:
 RX packets:0 errors:4 dropped:0 overruns:0 frame:0
With encryption enabled the message looks like
 RX packets:0 errors:4 dropped:0 overruns:0 frame:4
I'm not sure if this is significant or not.

Michael.





<< | Thread Index | >> ]    [ << | Date Index | >> ]