SP2 and ping

[Gene Howell]

We've got SP2 installed on a couple machines. We can ping
Windows servers and desktops until the end of time.
Trying to ping our Cisco switches and routers fails.
Maybe 1 in 30 will get through and even that isn't
consistent.

Anybody else have this problem? We've allowed all check
boxes on the advanced tab in Windows firewall.

 

[Dusty Harper {MS}]

It'd be good to know which part of the PING is failing. You should sniff
the network traffic and verify that an ICMP Echo Request is sent from the XP
machine. You will also want to verify that the Cisco is sending back an
ICMP Echo Reply packet.

Ideally a sniff from the XP box and from the Cisco's view would be of help,
however you can't sniff from a Cisco ( that I'm aware of ) so you will want
to enable IP debugging ( Debug IP ICMP ) on the Cisco to see the packets
received and sent

The ICMP options in Windows Firewall doesn't need to have anything enabled
if you are initiating the PING from that box.

[XP]>>>> PING >>>>[CISCO]

Otherwise, you will need to have the "Allow incoming echo request option"
enabled.

[XP]<<<< PING <<<<[CISCO]