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
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