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List:       poptop-server
Subject:    [Poptop-server] Connectivity problems again
From:       Christopher Chan <feizhou () graffiti ! net>
Date:       2003-08-26 3:18:55
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Hello again list,

I still get problems with the GRE tunnel collapsing due to a large packet:

Aug 25 15:50:57 newnat pptpd[5364]: GRE: 
read(fd=6,buffer=80555e0,len=8260) from
  network failed: status = -1 error = Message too long
Aug 25 15:50:57 newnat pptpd[5364]: CTRL: GRE-tunnel has collapsed (GRE 
read or
PTY write failed (gre,pty)=(6,5))

Previous setup:

remote clients: 192.168.4.x <-> 192.168.4.1 [VPN Server] 192.168.3.1
							 two real ips

In this case, using the vpn link for ssh and netbios name lookups was ok 
but the vpn link would fail with GRE complaining about long messages as 
soon as I try to using http or do a netbios copy.

Current setup:

remote clients: 192.168.4.x <-> 192.168.3.254 [VPN Server] 192.168.3.1
							   two real ips

Afte James made a comment about a routing loop I tried this setup. ssh, 
http, netbios copy, imap, whatever looked fine....until I did a huge 
imap move and mark to be delete operation, after which the vpn 
connection failed with the log messages at the beginning of this mail.

Can somebody look into this please?



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