I have a site-site VPN tunnel between my location and my remote office. My remote office is changing their ISP, so the VPN GW is getting changed. do i need to create new site-site tunnel again or changing the remote peer VPN GW in my FW is enough? FYI, i have cisco ASA 5520 and my remote office has check point UTM-1 edge box.
If the remote device that terminates the VPN stays the same but the IP address changes, all you need to do on your ASA is to change the peer IP on the crypto map as well as create a new tunnel-group with the new ip address and configure the same pre-shared-key.
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...