Thread: Ping and nslookup
June 22nd, 2011, 02:45 PM #1
- Join Date
- Oct 2002
Ping and nslookup
I'm stumped on an issue maybe someone can help with.
At work, we have a Windows 2003 SP2 server running IIS. It is a virtual machine with two network cards, one is on our internal network, the other is for DMZ traffic.
The issue is, when I am logged into the machine and ping it, I get the DMZ IP address returned as being pinged against. When I perform a nslookup against the server name, the proper internal address is returned.
When I ping the same server from my desktop, the correct internal IP is pinged against. Nslookup is returning the correct IP as well.
Pings against the DMZ network should fail per firewall rules in place, as there is nothing in the ruleset to route the ping request.
We use DNS on the internal IP. We do not use DHCP or WINS on either internal or external.
Does anyone have any ideas as to what the problem is?
July 1st, 2011, 07:00 PM #2
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- Feb 2009
- KFNL FS2004
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Somehow the ping got through the firewall. I would add a rule to forbid the IP address of the DMZ from ICMP.
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