asked on

Add a second ip to cisco 2800 router

I have a Citrix server that need to be resolvable from outside of my firewall.
I have a cisco 2800 router.
I would like to have some input as to how do I install a secondary or additional IP address
on the router.I own a block of ip's but noticed only 1 configured.
Can this be done using the SDM?

Scotty_cisco

The SDM is very limited so I doubt it.. I am assuming you want to add a second IP address on the LAN side of the box?

if this is the case login via console cable get access to the box assuming ethernet is fa 0/0

router>en
password:
router#
router# config t
routrer(config)#
router (config)#int fa 0/0
router (config-if)#ip address xx.xx.xx.xx 255.255.255.x secondary (secondary being the important part of this statement)
router (config-if)#end
router#wr mem

that should do it

Thanks
scott

jameshoyer

ASKER

Actually no I need to add a public ip....

Scotty_cisco

to an outside interface? and is it in the block of existing IP addresses that are routed to you?

Thanks
Scott

jameshoyer

ASKER

Yes.....I need an outside IP resolvable to my citrix box.

Scotty_cisco

is this part of the block you have already been assigned and are you running NAT?

Thanks
Scott

jameshoyer

ASKER

I will run NAT to point to the server....

Scotty_cisco

If your running nat already that is not a problem if your not well it could get a bit sticky

can you post a show run?

Thanks
Scott

jameshoyer

ASKER

I not running it from the router but I was planning on running this from my sonicwall....
What I am trying to do is get the web interface portion of my new citrix server up and running....
I have to give my Citrix server an external IP Address by runninng the altaddr command. Such as altaddr /set 63.xx.xx.xxx.
Then NAT these external IP's to the internal IP's of my citrix server on the firewall.

Scotty_cisco

ok so is the FA interface of the router a public address and the serial a public? if that is the case the sonic wall should proxy arp for it. If this is not the case can you describe your situation a bit better?

Thanks
scott

jameshoyer

ASKER

From what I can see only the fast etherent 0/0 is set to a public ip...
the 0/1 and serial's are not set at all.

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Scotty_cisco

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jameshoyer

ASKER

Maybe....good point....It's just that I do not see a range set in the router.

Scotty_cisco

that is your ISP's responcibility to send the ip range to you via your IP address there should be a route in the upstream device that points the block to you.

Thanks
Scott

prashsax

You should use static NAT on router to map a public IP address to a private IP address.

ip nat inside source static public_IP private_IP

This will cause any request coming on publicip to be natted to the private ip address.

Scotty_cisco

prashsax .... he is not running NAT on the router.

Thanks
Scott

jameshoyer

ASKER

Thanks guys....I have it takenn care of..