I have a client that has a Cisco ASA 5505. It is configured with the basic interface configurations:
-Internal: 192.168.111.0/24
-Outside x.x.x.x/29
-DMZ: 192.168.30.0/24
The first routable IP in the Outside network range is the gateway for the router/modem, the other is for the router/modem itself, and then there's one more currently being used for the outside interface.
I have tried and tried and have come out unsuccessful to add an addtional external/public IP to the outside interface. I do have the list of availible IPs provided by the ISP, I've created a network object in teh ASA for one of the IPs that is free and tried to configure NATing through this IP... It' doesn't work.
I need to have this ability so that I can enble some more services availible from the outside>in or outside>DMZ.
Please let mek know if you need more information to help me resolve this issue.
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Assuming you are NAT'ing to the Outside interface like this:
global (outside) 1 interface
nat (inside) 1 x.x.x.x y.y.y.y (x=internal net, Y=internal subnet mask)
You can add an additional outside IP address like this:
static (inside,outside) <public IP> <private IP>
or
static (dmz,outside) <public ip> <dmz ip>
Of course then you need to add rules to your access list(s) to allow traffic into these IP's.
I thought, public wan should be /30 so would go to e0.1 and available ip/s would be a larger range would go to e0.2 and inside Ip's to e1, may be. Sorry if i had the wrong impression..... thought he was unable to communicate between available public Ip's and wan IP... and hence needed to put one available public Ip to an interface......
Kimsu/GED,
I am not in a position right now to attempt yoru recommendations. I wil do so later this evening and will post my results and/or accept a solution if the results warrant it.
Surbabu, GED is correct. I am simply attemption to setup another external IP for NATing to my inside and DMZ networks. I do not need other interfaces on the ASA to hold configs. I don't have enough ports on my router/modem to provide connectivity to these interfaces anyhow... Well, enough enabled ports that is.
Thanks,
MOBO
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by: kamsujPosted on 2009-10-26 at 08:25:52ID: 25663191
it should work like in routers:
ip address 192.168.0.253 255.255.255.0 secondary
http://www.ducea.com/2008/