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access but no ping

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Name: simon-t
Date: February 19, 2004 at 05:11:15 Pacific
OS: Win XP Pro
CPU/Ram: AMD Athlon 2200/512mb DDR
Comment:

ok. heres the deal so far...
2 pcs connected with win XP pro, pc1 and pc2 (for ease of writing)
pc 1 can access and ping pc 2
pc2 can access but not ping pc1

why would this be occurring?? shouldnt that mean there is no connectivity in one direction if pc2 cant ping pc1??
cheers for any thoughts



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Response Number 1
Name: rais
Date: February 19, 2004 at 06:20:39 Pacific
Reply:

PING is a utility that uses IP's ICMP packets. When you issue a ping command, ICMP request-type packets are sent to the target IP address. The target machines replies back using ICMP reply-type packets.

It is possible for a firewall to allow or deny both types of ICMP packets. In your case, it seems an access-rule is blocking ICMP packets.

Thanks.


0

Response Number 2
Name: simon-t
Date: February 19, 2004 at 07:33:31 Pacific
Reply:

ok the firewalls were both disabled, but still no joy.
anything else im missin???


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Response Number 3
Name: rais
Date: February 20, 2004 at 18:27:27 Pacific
Reply:

I can't think of any other reason for this other than a Firewall/filter in between those two PCs.

If you are really keen to know, I would recommend a packet analyzer to see who is dropping the ball.

Thanks


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Response Number 4
Name: simon-t
Date: February 20, 2004 at 23:46:53 Pacific
Reply:

can u recommend a packet analyser at all??


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Response Number 5
Name: rais
Date: February 21, 2004 at 06:19:06 Pacific
Reply:

Two choices are:

NA's Sniffer
Ethereal (ethereal.com)

Thanks.


0

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