I have a two Isp's setup that send mail to another two Isp firewall.
For Ilustration I will call the firewall with the mail server in its dmz using
proxy arp,
(Firewall A). I will call the dependant firewall which sends mail to Firewall
A, (Firewall B.)
These two Firewall's have a openvpn tunnel between them. Firewall B is
loc:10.5.198.0/24.
What I would like to do is route any port 25 traffic from Firewall B
through openvpn,
to Firewall A's mail server in its Dmz.
I am thinking that Firewall A will know to reply to 10.5.198.0/24 (Firewall B)
because of the entry in Firewall A's route rules entry below.
- 10.5.198.0/24 main 1000
If this where possible with the below statement may make things clear,
what I want to do. As a reminder the mail server is in Firewall A Dmz.
In tcrules with eth1 local on Firewall B
tun4 eth1:<local subnet> <mail servers FQIP> tcp 25
I know the above wont work, What Will?
Thanks
Mike
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