This is my first attempt to setup any kind of special routing with the UTM. Let me tell you what I am trying to do and what I have done and let's see who can pinpoint the most things I have done wrong. [:)]
I have a client that has an existing T1 Internet connection protected by a SonicWall. For a variety of reasons, this connection and FW cannot go away. They have since purchased a new cable modem for the office to provide additional outgoing web bandwidth. I have setup a UTM to protect and manage this connection.
Considerations:
1) there is a terminal server involved that users connect to over the T1. Its default GW is the T1
2) There is a site to site VPN setup over the T1. Has a LAN IP of 10.0.3.x
3) There are specific internet hosts with static IP addresses that users will need to access over the T1
I defined the Sonicwall on the UTM and defined it on the internal interface of the UTM.
I defined the VPN LAN IP network space and defined it on the internal interface of the UTM
I defined the various internet hosts in the UTM and defined them on the internal interface.
I changed a client's default GW from the SonicWall to the UTM.
I created a gateway route on the UTM to route traffic destined for the LAN IP
s and the Internet hosts to the SonicWall.
The result? All traffic is routed out of the UTM.
What am I doing wrong? I need the UTM to see traffic destined for certain networks to route it BACK out the internal interface to the SonicWall.
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