I have the following scenario:

a) one router with two ethernet interfaces (LANs) and a serial interface. The serial interface is connected to the internet, dynamic nat is used for hosts in the two lans. A web server has a private address of 172.168.50.10 and it is being translated to the internet with serial's interface 68.32.x.x (public ip) with static nat. Clients in the internet type the public address to access the web server.

b)Problem: clients inside the LANs cannot access the web server by typing the public address, they use the server's private address instead, this create a problem with DNS static entries in the HOSTS file in the OS. It is a test server and is only available to authenticated users (lock and key ACLs), so no need to make a real DNS record. The entry in the HOSTS file points to the public address.

c)Question: how can a create a route map to change the public address in the HOST file to the private address of the test web server everytime a user in the LANs type the domain name.

I hope I'm being cleare

Thanks in advance

_________________
Angel Cool
Electronics and Computer Engineering Technology AS, CCNA.
www.angelcool.net

First note I will make is, I'm a little rusty on my (assumption of you using windows client/server environment) on windows environment. Second, If I'm wrong I'm sure someone will correct me. With that said... I don't think that a route map would be the way to go. If it was me (obviously I don't know anything about your environment) I would probably just create a batch script that would be pushed out from Active Directory when a user logs in and makes the edit in the HOST table. Once you have the batch script written, having it pushed out from AD would be easy to do. If someone else has a better way of doing it I'm sure that they will mention it and correct me if I'm wrong. I hope this helps.

-J

split-brain DNS is what you need
or if you are running an ASA firewall, you can fixup the DNS protocol to make the translation happen automagically

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"If you're good at anticipating the human mind. It leaves nothing to chance."
-Jigsaw

Not sure DNS will help if he's using HOSTS files...

Route maps also isn't the answer I don't think. I think destination NAT is what you need here.

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blog.brokennetwork.ca

I belive i found the solution, NAT Virtual Interface.

http://www.cisco.com/en/US/docs/ios/12_3t/12_3t14/feature/guide/gtnatvi.html

It removes inside & outside terminology, so two same interfaces(eg: before, 2 insides) can have translation.

I must say that the hosts are in one lan and the web server in the other lan. Settin up my lab to find out.

_________________
Angel Cool
Electronics and Computer Engineering Technology AS, CCNA.
www.angelcool.net

YEAAHH! it works like a charm!

i''ll go for a walk and start documenting this, i'll post my set up ltr today.

_________________
Angel Cool
Electronics and Computer Engineering Technology AS, CCNA.
www.angelcool.net

Here you go:

http://10-network.net/angelcool.net/sph ... 804-094135

I welcome any feedback.

Thanks. Angel

_________________
Angel Cool
Electronics and Computer Engineering Technology AS, CCNA.
www.angelcool.net