On Sunday 15 April 2007 08:20, Alan Chandler wrote: > Now when I look at a similar exchange when I am using the gateway > machine just as a hop and there is a machine behind the gateway I get a > different pattern > > youtube->me http cont seq 4344 next seq 5792 > me->youtube tcp ack seq 5792 > youtube->me http cont seq 7240 next seq 8688 > me->youtube dup ack seq 5792 > youtube->me http cont seq 10136 next seq 11584 > me->youtube dup ack seq 5792 > youtube->me http cont seq 5790 next seq 7240 > me->youtube tcp ack seq 8688 > youtube->me http cont seq 8688 next seq 10136 > > > As you can see, in this case, it appears that some packets are being > lost and have to repeated via a dup ack.
Check "cat cat /proc/sys/net/ipv4/conf/default/forwarding" is 1. (Earlier kernels used /proc/sys/net/ipv4/ip_forward.) Check your routing table with "ip route show". Make sure "ip rule show" has only three lines, or check what the additional lines are doing. As a previous poster suggested, see how "iptables -L -nv" changes during a download. Also check "iptables -L -nv -t nat". Try temporarily turning off your firewall, except for any rules needed for NAT or masquerading. (If you have any insecure services, stop them before turning off your firewall.) --Mike Bird -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
