At 06:36 17.01.2002 +0100, [EMAIL PROTECTED] wrote:
>Hi
>
>He have a central FW4.1(SUN-System) and some Nokia-Boxen (IP440- FW4.1) on
>the branch office. They are connected about a VPN-Tunnel.
>Is it possible to make a ISDN-Backup for this VPN-Connection?
>Can I do this with a Routing-Protokoll ?
>
>Have anyone an idea where I can found any information about this issue.

so you have:

(lanA)-FW-Router-(internet)-Router-FW-(lanB)

you can configure ISDN-backup router-to-internet with the same IP-addresses
as you have with your leased-line (if your ISP provides this), you can
configure a router-to-router ISDN-backup too, but this is more complicated
with routing - even if you have more than 2 LANs connected by VPN.

cheers
-reinhard


--
Reinhard Stich,   ASSIST    [EMAIL PROTECTED]
Internet Security AG, 1190 Wien, Nussdorfer Laende 29-33
Tel: +43 1 370 94 40  RS784-RIPE Fax: +43 1 370 94 40-10

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