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Configure two Cisco asa5510's for site-to-site VPN
Cisco guru's... I have two ASA5510's and need a hand setting up a site to site link. Here are the particulars:
ASA-1, Inside 172.16.4.225/24, Outside 10.10.125.130 mask 255.255.255.240 GW 10.10.125.142
ASA-2, Inside 172.16.5.220/24, Outside 10.10.125.146 mask 255.255.255.240 GW 10.10.125.158
I need to be able to configure both ASA's from either end. At this time there is no requirement to access any IP's on the 10.10 segment from inside, other than ping. The tunnel must provide unrestricted access between segment 4.0 and segment 5.0.
If you need further clarification, let me know.
Dog
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Answers
Reference:
http://www.cisco.com/en/US
If there's something here that you don't understand or need clarification on, please post back.
The wizard I saw, but after running it, I still had no VPN connection. I ended up reading through some of the documentation on Cisco's site, and learned about IP address pools, PAT, NAT and all those fine things that the vpn wizard doesn't setup for you.
I'm going to shift this question from VPN connections to PAT versus NAT. In order to run a VPN connection as stated in my orginal question, what type of NAT/PAT should I use that will statify the requirements? Keep in mind at some point, I will need to access resources (http/ftp etc) off the 10.10 subnets from either end.
Ideally I want the world on the outside to only see the outside interface IP as far as traffic from inside to outside is concerned. This would also include the VPN site-to-site connection using the outside IP.
Or another way of saying things is, I only have one external IP for each device. What is the high level configuration for my original config with regards to PAT versus NAT etc.
Dog
>The tunnel must provide unrestricted access between segment 4.0 and segment 5.0.
In order to meet your requirement for this, you have to bypass nat between these two subnets. You do this with nat 0 and conditional nat access-lists:
access-list nonat permit ip 172.16.4.0 255.255.255.0 172.16.5.0 255.255.255.0
nat (inside) 0 access-list nonat
<mirror the acl on the other end>
Set up PAT for everything else
global (outside) 1 interface
nat (inside) 1 0 0
This allows you to have full and open access between these two subnets while simultaneously using the outside IP with PAT for accessing anything else.
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by: SysExpertPosted on 2006-10-04 at 08:51:54ID: 17660345
I would post or a link to this Q, this in the Networking TA since they specialize in this.
I hope this helps !