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6.6

DNS Quandry

Asked by Kcferret in Windows NT Networking

Tags: ip, natted, coast

Ok here's the setup

CISCO Router thats running NAT for our network

2 WINNT DNS Servers running SP6.a

One DNS is multihomed (internal NATted IP and external public IP) and is our external DNS. The internal IP points to the internal DNS and the external IP is pointed to itself for DNS

The internal DNS has only one IP and its NATted and points to itself for DNS

Both host\lmhost files on the servers are blank

Problem is.. We seem to have people be unable to access out internal IIS web server. But it seems geogrpahical in nature

The west coast (up to Texas) can access the Web Server no probs..the East coast cannot access and gets various different types of errors (from timeouts, page cannot be accessed..etc)

Took my test PC outside the router and did an nslookup. I made the external DNS my nameserver and lookup my web server and it spat out the NATted IP address when it should have given me the Public IP which is an A record in my table.

Still using nslookup, I made another DNS I know (east coast) my nameserver. This DNS is an NS record in both my external and internal DNS servers

It also gave me the NATted IP address for the webserver instead of the public.

Checked the lmhost/host files on my test machine and they are blank and the DNS is pointing to the external DNS server in its network configuration.

So why am I getting NATted IP addresses and why can only some people access my Web Server??

Thanks in advance

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20091021-EE-VQP-81

DNS Quandry

Asked by Kcferret in Windows NT Networking

Tags: ip, natted, coast

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