On Mon, Jul 23, 2001 at 10:05:31PM +0200, Juergen Kreileder wrote: > Andy Wettstein <[EMAIL PROTECTED]> writes: > > > Here's a weird one. I've got a friend using Debian on ultra 5, but > > he can't access certain web sites. Notably www.sun.com, but he can > > access several other sites sites. He has tried mozilla, opera, > > konqueror, and lynx and all of them have the same problems. They > > just sit there and time out after a while. The only thing I see > > that is odd is that on a dmesg there are lines and lines of this: > > > > hw tcp v4 csum failed > > > > Has anyone else had a problem like this? This doesn't seem normal. > > Disable ECN: echo 0 > /proc/sys/net/ipv4/tcp_ecn
That's weird. How come that is enable by default on the debian sparc kernel, but not the debian x86 kernel? > > ,----[ linux/Documentation/Configure.help ] > | [...] > | CONFIG_INET_ECN > | Explicit Congestion Notification (ECN) allows routers to notify > | clients about network congestion, resulting in fewer dropped packets > | and increased network performance. This option adds ECN support to the > | Linux kernel, as well as a sysctl (/proc/sys/net/ipv4/tcp_ecn) which > | allows ECN support to be disabled at runtime. > | > | Note that, on the Internet, there are many broken firewalls which > | refuse connections from ECN-enabled machines, and it may be a while > | before these firewalls are fixed. Until then, to access a site behind > | such a firewall (some of which are major sites, at the time of this > | writing) you will have to disable this option, either by saying N now > | or by using the sysctl. > | > | If in doubt, say N. > | [...] > `---- > > > Juergen > > -- > Juergen Kreileder, Blackdown Java-Linux Team > http://www.blackdown.org/java-linux.html > Run Java 2 SE v1.3.1 on your iPAQ: > http://www.handhelds.org/pipermail/ipaq/2001-June/007221.html
