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Re: strange problem



"T. Albert" <milis@gosip.net> wrote:

>   i  got  a  debian machine (let's it's D) it's running on 2.4.24 SMP.
>   and  a  my  own  machine which is Windows XP (let's name it X) and a
>   redhat machine (the name is R) using default kernel.

>   ok  the problem is, from my X machine, i can ping both machine D and
>   R.  and  i can ssh, telnet, ftp, http to machine R, but i can't ssh,
>   ftp, http to machine D.

>   if  i  use  machine  R  to ssh, telnet, ftp or http to machine D. it
>   works normally. i'm wondering what's the cause of all of this ?

My guess is that D has ECN turned on - see if this returns "1":

cat /proc/sys/net/ipv4/tcp_ecn

If so, try turning it off:

echo "0" >  /proc/sys/net/ipv4/tcp_ecn

If that works, you can make the change permanent using sysctl.conf.

Adam





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