Hi,
1 - you have a speed/duplexing mismatch between the internal interface
of the firewall and your internal switch...or the windows box and the
internal switch (but you should notice that slowing internal
transfers)...or both.
Thanks, am checking on this one now ..
2 - your internet connection is ppp/pppoe and you have an MTU problem.
since the linux gateway is directly connected, it knows to lower the MTU
of the external interface, but machines behind it would continue to
assume an MTU of 1500; and in the absence of functioning PMTU
discovery, would suffer from significant packet loss due to the need for fragmentation.
This is on a 100MB link at choopa .com. The windows machine being forward to is on a Gigabit network.
3 - you're using some traffic shaping script (like the wondershaper) and
it is misconfigured.
Only using Iptables.
Thanks for these leads, am following up now.
Cheers Rudi
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