Juniper Firewall and client VPN

Hello all,
I have just aquired a Juniper Firewall and would like to know how to create a VPN tunnel that will allow me to connect a roaming user back to our network.

Many thanks.
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There is a document on their web page that shows all the steps to configure the Juniper box for dynamic VPN.

The firewall uploads the VPN client to the remote PC on the first log in attempt and can be set up to manage updates as necessary.
Well, it depends what Juniper box you use. The dynamic client only exists for Junos. If you use ScreenOS use the NCP client It works for both ScreenOS and Junos and excellent documentation and support is available.
Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
NCP is, BTW, the new "Juniper" VPN client (in a locked-down version) they sell as "NetScreen Remote" now.

If you are after a free solution, with all that involves like having community support only, have a look at Shrew ( and the configuration Wiki provided on that site. If you use the Wiki example, define your IP pool to be different from your LAN, or set up source NAT in the dial-in policy (which then makes the client appear to have the firewall's IP).

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EmanuelAuthor Commented:
Hi Qlemo,
Thanks for your help.  I have been trying the Shrew solution today but can't get the tunnel to stay up.  I have followed the Wiki and can't see anything I have missed.  I have created a seperate IP pool as you suggest, but everytime I try and open the tunnel it times out and doesnt connect.

Hopefully you can provide some assistance.

Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
Troubleshooting can be difficult here - and is one reason why Allvirtual suggested NCP (and their online support).

With Shrew you use Trace Utility for that purpose. Start it, go into the Options menu, set log level to at least informational, then restart IKE and IPSec service via the buttons provided, and try to connect.
When connection failed, press Open Log in IKE Service tab. You should see the reason for failure in Phase 1 (if failing, and if not at the very beginning of negotiation). If Phase 1 succeeds, do the same in IPSEC Service tab.
EmanuelAuthor Commented:

I will probably give the NCP Client a whirl then.   Is there a cheat sheet to follow for enabling the firewall to accept the Dialup VPN's from the client?

EmanuelAuthor Commented:
Am I better going for a route VPN or policy based.  The solution I seek is to allow several users to utilise the VPN to connect them to our office servers and at the same time allow them to browse the web while out of the office.

Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
Functional there is no difference, but route-based is more complicated.
EmanuelAuthor Commented:
I haven't had much luck getting this up and running.  I will have to allocate a little more time I think but thank you to all who answered.
EmanuelAuthor Commented:
Thank you to all for your help.
Contact NCP Technical Support is my suggestion. They help you during the trial and get it setup and running!
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