Quite likely a duplex negotiation problem. Check the duplex setting of the port where the firewall is connected, and the settings to the NIC driver on your Linux box.
Having the switch configured for "100 Mbps full duplex" rather than "auto" is recommended. Not all switches and drivers agree on "auto negotiation" at all times still... On Monday 20 May 2002 16:13, zheng chuanbo wrote: > sorry to ask this question again.this is a problem > when we use linux2.4 as our firewall. our network is > as the graph blow,we have about 500 users. > > hostA-->switchA--->Central Switch--->firewall-->router > > > switchB switchC > > the problem is that when i ping from hostA to firewal, > we lost about 20 percent packets.but when we use > linux2.2,everything is OK. when i removed the > firewall and placed a normal PC there,the ping is also > OK. so i think the problem is on the firewall. or > maybe there are some problem between the switch and > the firewall? > thanks for help. > > chuanbo zheng > > _________________________________________________________ > Do You Yahoo!? > 摊开你的掌心 让我看看你 > http://sweepstakes.yahoo.com/2002cnuser