Wireshark-users: Re: [Wireshark-users] Wireshark-users] need to find what blocks icmp
Date: Thu, 20 Aug 2009 07:23:23 -0400
Title: Wireshark-users] need to find what blocks icmp
Seems you looked in all the 'usual' places, so try looking in some 'unusual' places.
It's not a connectivity problem - you said that they are able to see each other's macs and that ping works in one direction.
Focus on the desktop. There's a program somewhere that you don't think would be blocking icmp, but it does.
It's probably trying to protect you - whether you need it or not..
Do you by any chance have a Cisco VPN Client on the desktop? If so - dig around in the Options and uncheck "Stateful firewall (Always On)". If not, look for some similar program. There's probably a firewall still on somewhere that you don't realize is running.
----- Original Message -----
Sent: Thursday, August 20, 2009 2:09 AM
Subject: [Wireshark-users] Wireshark-users] need to find what blocks icmp

Rich: I just turned on ICMP allow incoming echo request on desktop & laptop. Ping from laptop to desktop still times out.

Chuck: Laptop is XP Home. Desktop: XP Pro. I double checked, and both machines have "Enable TCP/IP Filtering" box unchecked.

Tan: This is actually my home comps. So, I can't blame this problem on user but myself :(   I checked installed programs and it seems like I don't have any other firewall/anivirus installed beside mentioned in the original post. Though, I had zone alarm installed on both comps before current comodo install about a year ago. I don't see zone alarm process under task manager (should it start with z* ?), and it is not under programs..

Thanks a lot guys for helping me on this! I need both computers to 'see' each other in order to transfer few gig of programs, otherwise I would not worry about this ping a lot. Unfortunately, I need to understand why I can't ping desktop from laptop. I hope it will help them to see each other shared drives.

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