On Sat, Mar 09, 2002 at 01:19:46PM -0500, Dennis wrote: > Are you passing through the internet, or is this internal? It's over an ipv6 in ipv4 tunnel over the internet. > Its likely that there is a bandwidth management device in between if you > dont have control of the entire path. Our ET/BWMGR (which runs on LINUX > btw) for example, uses TCP window manipulation to shape traffic. [snip] > One way around it is to encrypt your data in a vpn. Of course if they are > limiting your IP address (or globally) it wont help, but your window wont > be affected! I think I have the same effect with my tunnel. The tcpdump is from the box where the smaller tcp window is sent, not seen on the other end. Anyway, the same connection is still active after almost 5 days now, and now it looks like this: 20:03:00.269170 3ffe:80c0:200:2:250:b7ff:fe13:be.194 > 3ffe:80c0:220::b.2661: . [tcp sum ok] 24622:25830(1208) ack 148 win 8192 <nop,nop,timestamp 1294922755 590477490> [flowlabel 0xaf77f] (len 1240, hlim 62) 20:03:00.269975 3ffe:80c0:220::b.2661 > 3ffe:80c0:200:2:250:b7ff:fe13:be.194: . [tcp sum ok] 148:148(0) ack 25830 win 2416 <nop,nop,timestamp 590477502 1294922755> (len 32, hlim 64) The window of 2416 is something that shows up alot, also in previous connections. Kurt - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
