While configuring easy vpn in nem mode with asa 5510 and a 1800 SERIES router,it has been said that intersting traffic should not be natted.How does this traffic goes to the internet with private ip addressing if the 2 sites are link by internet ?
What is this access list role?
access-group OUT in interface outside
example: See file attached
the scenario could describe the need to avoid to NAT traffic that has to go trough the IPSec tunnel:
LAN to LAN traffic has to travel inside ipsec packets and don't need to be natted
when accessing internet it has to be natted as you observe
access-list no-nat extended permit ip 10.10.10.0 255.255.255.0 192.168.10.0 255.255.255.0
net 192.168.10.0 is the lan behind the 871 see the drawing
Hope to help