Sonicwall site to site VPN

Posted on 2012-08-29
Last Modified: 2012-09-11
Greetings all,

I have been stumbling with the perfect configuration setup for my sonicwall site to site VPN and I hope someone can shine some light on the situation. I will give as many details as possible but if you need more please let me know.

My Infrastructure:

Local Site
T1 MPLS ---> small switch A
small switch A --> Primary Gateway "IPAD"
small switch A --> Sonicwall 2400mx

IPAD = private - public
Sonicwall = private - public -Primary Wan IP :x1
........................................................ public - Secondary Wan IP :x25

Remote Site
Comcast Cable --> sonicwall tz205 --> core switch
Sonicwall tz205 - private - public -
VPN Tunnel to "local site sonicwall primary WAN"

Everything works well under this setup. The moment I change the tunnel to "local site secondary WAN x25" i loose the ability to resolve host names IE: eagle

I can ping via IP and also by FQDN IE: eagle.cyclops.local

any ideas?
Question by:Jonathan Woods
    LVL 3

    Expert Comment

    do you have DNS entries when on the 50 tunnel?
    LVL 18

    Expert Comment


    Login to your NSA -> Network -> DHCP Server -> Click Configure on your DHCP scope matching your internal interface -> DNS/WINS -> enter CYCLOPS.LOCAL -> OK

    Test and try again after performing IPCONFIG /FLUSHDNS on the local client

    Also take a look at your DNS settings for interface X25 and whether that matches X1?
    LVL 1

    Accepted Solution

    Sorry for my late response. The issue has been resolved. Under my address objects was a MPLS group which was setup at the initial install which contained all remote and local subnets. As I moved each site over to the new MPLS group "Comcast & T1's" the subnet in migration had to be removed from the first MPLS group and added to the new MPLS group.
    LVL 1

    Author Closing Comment

    by:Jonathan Woods
    Question resolved by self.

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