I need to have a customer network connected to my extranet.
Im not in control of the customer network addressing. But need to configure a VPN connection.
I will supply the router that will also be the customer Firewall to the Internet (PAT).
(1) I need to be able to do PAT on traffic from internal hosts to the Internet.
(2) I need to hide (NAT) the customer network behind a network supplied by me (match-host), when they are accessing my extranet (through VPN).
(3) I need to be able to access hosts on the customer network, through the hiding (NAT) addresses from my extranet (through VPN).
The following configuration will solve (1) & (2), but I can not (3) reach the internal servers from my extranet, except if the internal host has made connection to the extranet, witch will create a translate entry in the NAT table.
Create a NAT configuration in the router which also translates even your outside Global address(your extranet) into the inside Global(any private) address through the keyword "rotary".Only this rotary pool will provide the pool of inside global IP address for yopur outside Global IP addresses.
The following white paper will provide you with the required information,
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