multiple connections to the Internet

Kevin Darcy kcd at daimlerchrysler.com
Fri Jul 27 23:29:43 UTC 2001


As Simon Waters pointed out, there are lots of ways to do this that don't
involve DNS at all.

If for some reason you *have* to use DNS, however, and you control all of the
nameservers in this equation, you could probably create a generic name for the
fw/proxies and use a sortlist to sort the address list differently for each
group of clients.


- Kevin

Tim Noonan wrote:

> I was wondering if anyone knows a way to have multiple (say 3) connections
> to the Internet at different physical locations with 1/3 of the users
> pointing to a firewall/proxy server and having the other two as backups
> (with an automatic failiver) and each of the other 2/3 of users configured
> the same but with a different fw/proxy server as a primary?
>                                                        _____        _____
>        ~~~~
>                                                      |  R2    |---| FW1
> |-----{ Inet 1  }
>                                                      | _____|   |_____|
>     ~~~~
>                                                       |
>                                                       |
>                                                       |
> ______         _______                  |
> | NS1   |___|            |                 |
> |_____ |      | SW1   |        _____|    _____       _____        ~~~~~
>                      |            |-----| R1   |---| R3   |----| FW2|---{
> Inet 2  }
> _____          |            |       |____|    |____|     |____|       ~~~~~
> | WS1 |------|______|                 |
> |_____|                                        |
>                                                       |
>                                                       |
>                                                       |____        _____
>     ~~~~~
>                                                       | R4   |---| FW3 |---{
>   Inet 3   }
>                                                       |____|    |_____|
>   ~~~~~
>
> LEGEND
> NS - Name Server (DNS)
> WS - Workstation
> SW - Switch
> R - Router
> FW - Firewall/Proxy Server
>
> _________________________________________________________________
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