Some sites don't get through nat

[Han Boetes <han@mijncomputer.nl>]

Hi,

I noticed this odd problem with http://web.wt.net/~billw/gkrellm/ and
http://www.snsbank.nl/. Both sites seem to get slowed down by NAT. If I
connect to them from the firewall there is no connection problem. But
if I connect to them from _behind_ the firewall there is no connection
being setup.


This is what I get from tcpdump:

  Feb 24 17:39:35.645516 0:c0:26:18:0:2 0:b0:4a:28:a8:1b
  0800 74: 217.120.147.78.56064 > 194.151.220.32.80:
  SWE 320099576:320099576(0) win 5840 <mss 1460,sackOK,timestamp
  38885646 0,nop,wscale 0>

To make sure it wasn't anything in the firewall I disabled it (except
for NAT) and restored the default mtu of 1500. Still no
connection. Does anyone have a clue what's going on here?



# Han