Re: NAT and firewall question
From: DaveG (dave.green_at_despam.xparadise.net.nz)
Date: 05/03/04
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Date: Mon, 03 May 2004 15:02:02 +1200
OneSolution wrote:
> I have setup my network so that there is a firewall with NAT enabled. Web
> and IMAP are forwarded by the firewall to a server. The firewall has a
> public IP address and a DNS entry from the outside world, so when people
> connect to that outside IP or public name, from the outside world, their
> requests get routed properly to the web server, or the IMAP server.
>
> The people within the office have laptops. If I configure their laptop IMAP
> or pop3 clients to use the internal private IP address, then when they go
> home, they can't use those configured accounts as the IP is private, but it
> works great within the office. If I configure the laptops with the public
> IP and/or DNS entry, then they can check mail and stuff from home, but not
> from within the office.
>
> How do I set it up so that I can have their laptops configured to work
> within the network, and from outside the network without having to create
> multiple mail accounts on their laptops?
>
> Thanks a lot,
> - Z -
>
>
Quick & dirty solution:
Create two server entries for the email client, one has internal ip's
the other external ip's, both are set to retreive emails. When the user
is onsite the external one times out, when offsite the internal one
times out. They just have to ignore the timeouts.
Other solutiom: use a vpn, then only internal ip's required. OpenVPN
works well.
Dave
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