[nsp] NAT question
b.turnbow at twt.it
Tue Feb 3 02:57:40 EST 2004
you can create a loopback address with ip nat outside and policy route
twords that interface, in this way nat goes through an "inside and outside"
interface and will work.
there is a document on the cisco website that explaions the configuration
thay call it "nat on a stick"
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Jay Nakamura
Sent: lunedì 2 febbraio 2004 21.53
To: Cisco List
Subject: [nsp] NAT question
I have a quick question on NAT that I haven't found the answer to.
Let's say I have the following configuration,
ip address 10.0.0.2 255.255.255.0
ip nat inside
ip address 10.0.1.1 255.255.255.0
ip nat outside
ip nat inside source list 101 interface FastEthernet0/2 overload
ip nat inside source static tcp 10.0.0.1 80 10.0.10.1 80 extendable
access-list 101 permit ip 10.0.0.0 0.0.0.255 any
ip route 0.0.0.0 0.0.0.0 10.0.1.2
Let's say 10.0.0.1 is a web server, 10.0.10.1 has the DNS www.foobar.com
Now, the issue is, the users inside would like to connect to the web server
at 10.0.0.1 but use www.foobar.com as the address.
Well, that doesn't work from inside the network since www.foobar.com will
resolve to 10.0.10.1, and NAT gets confused when it hits the router. (At
least my test bed router does, running 12.2(17a))
Is there a way to configure NAT so you can get to 10.0.10.1 from the inside
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