Hello Guys,
Actually I have a router and I was allocated with a block of public ip address from the ISP.
It's LAN interface have an internal IP address and it's connected to a firewall.
In fact, I wanted I'm going to use a specific public IP from the range to configure an IPsec between branch and an head office.
My question is that, should I need to make changes on the router or it is fully released by the ISP based on the configuration provided. Will I need to a sort of NAT, access-list ?
Note IPsec will be done on the firewall and the firewall internal IP which connects to the router is 192.168.0.21.
Suppose I need to use 221.6.42.7 for the IPsec.
Thanks
