Hi. I'm trying to establish a LAN-to-LAN IPSec VPN tunnel from my ASA5510 to another network but hit a little snag. My counterpart on the other side informed me that he already has a VPN tunnel to another company that has the same IP range as my network(10.100.16.0 /24) and can't create the tunnel.
I was wondering is there a way to use NAT on the VPN tunnel so that the traffic that goes from my network on the VPN tunnel gets translated and my counterpart on the other side sees this translated IP range?
Thanks in advance for any help.
Yes you can use the same address as you already use for internet access.
Just update your crypto access-list to reflect the new address and make sure the third party does the same.