I had a similar problem on 2.4, I was unable to initiate any TCP
connections from the local host to the local host... never figured out
what it was (upgraded to 2.6).

Andrew

On Sat, 2005-07-09 at 22:49 -0700, Paul Heinlein wrote:
> I got an odd new problem.
> 
> The host in question is on a five-node LAN sitting behind a NAT 
> gateway.
> 
> I can
> 
> a. ping any host on the LAN or Internet (i.e., ICMP works fine)
> b. query any DNS server on LAN or Internet (UDP works fine)
> c. receive TCP connections from LAN or Internet
> d. initiate TCP connections to hosts on LAN
> 
> I cannot
> 
> * initiate TCP connections to hosts on the Internet
> 
> The problem isn't specific to any TCP protocol; they all fail: smtp, 
> telnet, ftp, http, ...
> 
> I'm working on isolating the interesting parts of strace output; right 
> now the only thing that leaps out at me is that connect() is timing 
> out, e.g.,
> 
> connect(3, {sa_family=AF_INET, sin_port=htons(80), 
> sin_addr=inet_addr("129.95.36.100")}, 16) = -1 ETIMEDOUT (Connection 
> timed out)
> 
> Clues?
> 
> -- Paul Heinlein <heinlein@...>

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