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04.08.2008 at 10:43AM PDT, ID: 23305567
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Multihomed computer - Default Gateway - Sonicwall

Hi Experts,

Here is my scenario. In order to supply all LAN computer with a default gateway (X.X.X.X) to route all internet traffic through automatically I have set on the DHCP server a Router entry (X.X.X.X) (also to avoid Outlook 2007s request for a default gateway.).
Everything works fine on the LAN, the devices retrieved the gateway info and all internet requests go through X.X.X.X which is the LAN IP of a sonicwall (1) which is on the WAN side connected to the internet.

Now my problem: I have a citrix server which is multi homed and (LAN/WAN). The LAN side is in the same address space as the internet gateway is in (X.X.X.X) and the WAN site is going to a 2nd sonicwall (2) which is providing a default gateway (NAT) to the citrix server as well.

And here is the problem. Those 2 default gateways cause my citrix server not to be available from the WAN any longer.

What can I do to solve that problem. I want the internet traffic from the LAN to go through Sonicwall (1) which handles the content filtering but still have my citrix box accessible via the different Sonicwall (2) (Different Internet connection and ISP).

Thanks a lot
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Question Stats
Zone: Networking
Question Asked By: TLANGI
Solution Provided By: ebjers
Participating Experts: 1
Solution Grade: B
Views: 5
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04.08.2008 at 10:46AM PDT, ID: 21307717

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04.08.2008 at 10:49AM PDT, ID: 21307738

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04.08.2008 at 11:01AM PDT, ID: 21307841

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04.08.2008 at 12:10PM PDT, ID: 21308553

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04.09.2008 at 06:04PM PDT, ID: 21320664

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04.10.2008 at 06:13AM PDT, ID: 21324351

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04.08.2008 at 10:46AM PDT, ID: 21307717
Configure your citrix server for a static IP on the LAN card and do not provide a gateway for that NIC.

You only need a gateway on the WAN NIC

eb
 
04.08.2008 at 10:49AM PDT, ID: 21307738
But what if I want the Citrix users on that machine using the default gateway (X.X.X.X on my Sonicwall (1)) for internet browsing and not the Citrix servers WAN side?
 
04.08.2008 at 11:01AM PDT, ID: 21307841
then you should put the gateway on the LAN NIC, however this may break the return path for
 
04.08.2008 at 12:10PM PDT, ID: 21308553
sorry did not complete my sentence in my last post

removing the gateway for the WAN NIC and setting it for the LAN NIC will force the server to access the internet through the sonicwall, however this will break the return path for people connecting to your Citrix server on the WAN NIC and may prevent traffic from flowing back to them (disconnected session)

eb
 
04.09.2008 at 06:04PM PDT, ID: 21320664
I will test it out and report back. Would you recommend an overall better solution on how to handle that?
 
04.10.2008 at 06:13AM PDT, ID: 21324351
With out getting a better picture of how your network is laid out (focusing on the Citrix server) I can't make any real recommendations for a better solution.

eb
Accepted Solution
 
 
20080236-EE-VQP-29 / EE_QW_2_20070628