I'm currently using ipsec vpn to connect my host location to remote sites. I'd like to be able to use EIGRP which will require gre. What I'm after is some interface addressing clarification. I'll start with some detail on the current config. The IP's are not my actual IP's.
Host router: ----------------- GigabitEthernet0/1 LAN 22.214.171.124 Serial1/0 WAN 126.96.36.199
crypto map toRemote 2008 ipsec-isakmp description to Host set peer 188.8.131.52 set transform-set weak match address 120
Can I use the same LAN IP's for GRE? for example HostRouter# conf t tunnel0 ip address 184.108.40.206 255.255.255.0 tunnel source G0/1 tunnel destination 220.127.116.11 ###Should I use the WAN IP instead of LAN?
RemoteRouter# conf t tunnel0 ip address 18.104.22.168 255.255.255.0 tunnel source f0/0 tunnel destination 22.214.171.124 ###Should I use the WAN IP instead of LAN?
So the bottom line is this; will the above work, or will I need to create a new IP to assign the GRE interface?
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