Can not see subnets across sonicwall Site to Site VPN
Posted on 2011-03-16
I have a small network in which there is a Dell Powerconnect switch acting as the default gateway. On the switch there are two vlans 192.168.10.0/24 and 192.168.0.0/24; the 10 network is for ip phones and the other for data. The data network is a windows network with a SBS 2008 controlling DHCP and DNS. The SBS server IP is 192.168.0.2 and the dell switch on data vlan is 192.168.0.254. The SBS DHCP scope is set to use the dell switch as the default gateway and SBS is also statically set to use the dell switch as the gateway. The router to the internet is a sonicwall TZ 210 with a lan IP of 192.168.0.1. Oh yeah, there is a route set on the dell switch (0.0.0.0 0.0.0.0 192.168.0.1). Everything works internally in the office between the vlans (there is a phone server at 192.168.10.10) and I can from 192.168.0.2 to 192.168.10.10 and vice versa.
The problem I am having is when I add a remote site connected with a site to site vpn from another sonicwall TZ180 i can not see either subnet. The subnet of the remote site is 192.168.1.0/24. The site to site is up and I can ping from the remote site to 192.168.0.1 but no where else. I also noticed if i change the statically assigned gateway on the SBS then I can ping it from the remote site (seems anything on the data subnet with default gateway set to 192.168.0.1 responds to pings from the remote subnet). I have not been able to ping the dell switch at 192.168.0.254 from the remote site.
The entire goal here is to get an IP phone working on the remote site which really just means it needs to see 192.168.10.10.
The Dell switch is where my expertise is a little lacking (this was set up by the phone vendor). i have access to it and have been able to play around with setting up routes and vlans but I am not that familiar with it. Dell switch is PowerConnect 6224p