Re: Simple internal IP address resolution for mail

[Larry Bolhuis <lbolhuis@xxxxxxxxxx>]

Well this isn't as easy as it should be. Internal DNS would certainly 
solve the problem BUT of course it's not trivial. I mean it's not hard 
to do (i.e. straightforward) but it's not 5 minutes either.  So I think 
the solution you want is to put your external addresses on a loopback in 
the router. Define that interface as the NAT outside and then use ip 
route-map to get the external address to bouce off the serial interface 
and back through nat. It's not all clear in my head yet but I think you 
can do it this way.

Hmmmm.
- Larry

Neil Palmer wrote:
> I'm looking for an easy way to do the following.
>
> - salesman with laptop accesses mail externally with Outlook Express using the 
> company's external IP address, by using POP server defined as 
> mail.theircompany.com - works fine outside the office
>
> - when in the office (as there is no internal DNS server) this resolves to the 
> external IP address, and can not connect
>
> - all I want to do is have mail.theircompany.com resolve on the local LAN in 
> the office to the internal IP address of the iSeries (192.168.99.99) instead of 
> the external public IP address (that their ISP's DNS servers are returning)
>
> Is there a simple way to do this using the 70-POP Server option in the DHCP 
> server configuration (which IS running on their iSeries), OR do I have to 
> configure a DNS server on the iSeries to resolve this ONE address 
> (mail.theircompany.com) and have the present DNS server (which is actually the 
> ISP's DSL router) continue to resolve all other address requests ?
>  
>
> Neil Palmer, Cambridge, Ontario, Canada
>  
> (This account not monitored for personal mail,
> remove the last two letters before @ for that)
>
>
> -l.
>
>
>
>