Possibility route a subnet from outside interface to another interface?

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Jan 17th, 2010
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I'm looking at possibility route a subnet from outside interface to another interface.

I have ASA 5510 with Software Version 8.2(1)

My scenario like this,

I have IP subnet let say Mask and another mask

Firewall outside Interface is

Inside used same IP as outside Interface to access Internet.

DMZ used IP address from to

Now I have another network using IP address  range to Is that possible to route  IP address range 255.255.254 to another interface?

I wanted to route even if I could not get firewall features for this interface.

I could not make the firewall transparent since VPN not possible.

Thank you,

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Panos Kampanakis Tue, 01/19/2010 - 07:56
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You can do what you are trying to do

The overlaps with the, but it is more explicit so it will take precedence.

Outputs will look like

ASA-5505(config)# sh route


S [1/0] via, inside

S [1/0] via, outside


ASA-5505(config)# sh run route
route inside 1
route outside 1

I hope it helps.


transfieldservices Sun, 01/24/2010 - 20:43
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Hello pkampana,

Didn't work for me. look like I'm doing something wrong.

I'm getting message
ERROR: Cannot add route, connected route exists

At the moment only exist route is

route outside gw 1

Can you please let me know the commands you used.

Thank you,

Panos Kampanakis Mon, 01/25/2010 - 05:39
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If you are adding a static route foa a subnet that is already directly connected to your ASA on one of its interface with the sane sybnet mask, it will not let you, it will complain.



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