Router with 2 interface

Answered Question
Oct 8th, 2008

Hello

I would like to confirm if the following scenario is possible?

I have a Cisco 2821 router. It has 2 interfaces. The first interface (GE 0/0) connects to the internet and NAT'ing is performed on the interface. This interface allows for the office employees to have internet access.

The second interface (GE 0/1) on the same Cisco 2821 connects the same office employees to a 10.230.0.0/16 WAN.

Is this possible? And what gotchas are there that I should be looking out for?

Many Thanks

wvw

I have this problem too.
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Correct Answer by Marwan ALshawi about 8 years 1 month ago

100% possible

what u need is to make correct routing

lets say ur remote site over the WAN has network as 192.168.1.0/24

and u dont use any dynamic routing with ur remote site

u need first static route point to ur remote site through the WAN and lets say the remote router over the WAN is 10.230.0.1/16

ip route 192.168.1.0 255.255.255.0 10.230.0.1

now u need a defualt static route for internet like;

ip route 0.0.0.0 0.0.0.0 Ge0/0

or

ip route 0.0.0.0 0.0.0.0 [next hop IP for internet]

good luck

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Correct Answer
Marwan ALshawi Wed, 10/08/2008 - 18:53

100% possible

what u need is to make correct routing

lets say ur remote site over the WAN has network as 192.168.1.0/24

and u dont use any dynamic routing with ur remote site

u need first static route point to ur remote site through the WAN and lets say the remote router over the WAN is 10.230.0.1/16

ip route 192.168.1.0 255.255.255.0 10.230.0.1

now u need a defualt static route for internet like;

ip route 0.0.0.0 0.0.0.0 Ge0/0

or

ip route 0.0.0.0 0.0.0.0 [next hop IP for internet]

good luck

if helpful Rate

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