I agree that the info is thin, but that *sounds like* a probelm with tcp-ecn .... cat /proc/sys/net/ipv4/tcp_ecn if its > 0 then echo "0" > /proc/sys/net/ipv4/tcp_ecn Alistair Tonner On December 27, 2003 05:47 pm, Ted Kaczmarek wrote: > With the limited info provided going to be difficult to even guess. > Is ip_forward enabled? > > Ethereal/tcpdump are your friends. > > Ted > > On Wed, 2003-12-24 at 19:11, zhang ping wrote: > > I use linux box to share a ADSL: > > > > ----ADSL----PPPoE------LAN > > > > The linux kernel is 2.6.0 > > The iptables is 1.2.9 > > The pppd is 2.4.2 > > > > pppd eth2 connect to internet, on linux box, everything is ok. > > > > iptables -t nat -A POSTROUTING -j MASQUERADE > > > > Within the LAN , i can surf some sites, but can't surf the others, > > > > What is the matter?????????? > > > > Pls help me > > > > _________________________________________________________________ > > äçäçäæåççåéäççâ MSN Hotmailã http://www.hotmail.com