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Sonicwall site to site VPN

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 66.xxx.xxx.98
Sonicwall = private - public 66.xxx.xxx.101 -Primary Wan IP :x1
........................................................ public 50.xx.xxx.225 - Secondary Wan IP :x25

Remote Site
Comcast Cable --> sonicwall tz205 --> core switch
Sonicwall tz205 - private - public - 50.xxx.xxx.xxx
VPN Tunnel to 66.xxx.xxx.101 "local site sonicwall primary WAN"

Everything works well under this setup. The moment I change the tunnel to 50.xx.xxx.225 "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?
Jonathan Woods
Jonathan Woods
  • 2
1 Solution
do you have DNS entries when on the 50 tunnel?

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?
Jonathan WoodsAuthor Commented:
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.
Jonathan WoodsAuthor Commented:
Question resolved by self.

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