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vpn Passthrough

Unanswered Question
Nov 6th, 2005
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Dear net pros,


Please kindly help me on the following


1. PIX Firewall behind dsl speedtouch modem act as vpn end-point to terminate IPSec tunnel.


What is vpn pass-through>

What should i configure on speedtouch 510

to pass the vpn traffic to the pix


Please help me


Thanks

swamy

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jackko Mon, 11/07/2005 - 04:12
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firstly, we need to verify how many public ip in total.


assuming there is only one public ip, then you need to configure the speedtouch into bridging-mode instead of routing-mode; configure public ip on the pix and depends on the isp, configure pppoe as well.


assuming there are more than one public ips, then you can leave the speedtouch in routing-mode. if this is the case, you need at least 3 public ips; 2 for the speedtouch and 1 for the pix.


vpn pass-through refers to the ability to identify and forward vpn packets. with this enabled, host behind the speedtouch will be able to establish vpn. nonetheless, it doesn't matter if the speedtouch is running in bridging-mode.

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