From: mzamborini on
Here's my situation.

I have a DSL connection, which the Netopia 3346 is plugged into and
being used as the modem (I don't need it's firewall capabilities).
>From one of the 4 LAN ports on the Netopia, I have a cat5 cable going
into the Sonicwall TZ170 WAN interface. Then, all my clients are
plugged into the LAN ports on the Sonicwall.

I'm using NAT on both devices, and my Netopia is using 192.168.1.254 as
it's gateway address, and the Sonicwall 192.168.168.168 as it's gw.
The Sonicwall's WAN IP is DHCP (getting it's address from the Netopia).

My dilemma, how do I get VPN to work through the Netopia, ultimately
talking to the Sonicwall? I can get VPN to work from inside the
network (a client that's plugged into the Sonicwall can connect to the
VPN). Clients plugged into the Netopia, do NOT VPN in.

I believe some of my issues are:
1. Why am I using two different NAT's in my situation?
2. Why am I using DHCP on the Sonicwall LAN interface, make it static

Any help is greatly appreciated. TIA!

From: Jokes on
Hi,

I understand that there is double NAT happening which is not
advisable.If you are creating a site to site VPN make sure UDP 500 and
IP 50 are allowed on netopia device.If possible turn of NAT on
netopia.So if you turn off NAT on netopia, it will just pass the
traffic to sonicwall where sonicwall will takecare about natting.
Secondly you cant make LAN IP of sonicwall in dynamic IP addressing
scheme.

So make sure on DSL and netopia UDP 500 & IP 50 are allowed.


With regards
Pradeep




mzamborini(a)gmail.com wrote:
> Here's my situation.
>
> I have a DSL connection, which the Netopia 3346 is plugged into and
> being used as the modem (I don't need it's firewall capabilities).
> >From one of the 4 LAN ports on the Netopia, I have a cat5 cable going
> into the Sonicwall TZ170 WAN interface. Then, all my clients are
> plugged into the LAN ports on the Sonicwall.
>
> I'm using NAT on both devices, and my Netopia is using 192.168.1.254 as
> it's gateway address, and the Sonicwall 192.168.168.168 as it's gw.
> The Sonicwall's WAN IP is DHCP (getting it's address from the Netopia).
>
> My dilemma, how do I get VPN to work through the Netopia, ultimately
> talking to the Sonicwall? I can get VPN to work from inside the
> network (a client that's plugged into the Sonicwall can connect to the
> VPN). Clients plugged into the Netopia, do NOT VPN in.
>
> I believe some of my issues are:
> 1. Why am I using two different NAT's in my situation?
> 2. Why am I using DHCP on the Sonicwall LAN interface, make it static
>
> Any help is greatly appreciated. TIA!

From: Jokes on
Hi,

I understand that there is double NAT happening which is not
advisable.If you are creating a site to site VPN make sure UDP 500 and
IP 50 are allowed on netopia device.If possible turn of NAT on
netopia.So if you turn off NAT on netopia, it will just pass the
traffic to sonicwall where sonicwall will takecare about natting.
Secondly you cant make LAN IP of sonicwall in dynamic IP addressing
scheme.

So make sure on DSL and netopia UDP 500 & IP 50 are allowed.


With regards
Pradeep




mzamborini(a)gmail.com wrote:
> Here's my situation.
>
> I have a DSL connection, which the Netopia 3346 is plugged into and
> being used as the modem (I don't need it's firewall capabilities).
> >From one of the 4 LAN ports on the Netopia, I have a cat5 cable going
> into the Sonicwall TZ170 WAN interface. Then, all my clients are
> plugged into the LAN ports on the Sonicwall.
>
> I'm using NAT on both devices, and my Netopia is using 192.168.1.254 as
> it's gateway address, and the Sonicwall 192.168.168.168 as it's gw.
> The Sonicwall's WAN IP is DHCP (getting it's address from the Netopia).
>
> My dilemma, how do I get VPN to work through the Netopia, ultimately
> talking to the Sonicwall? I can get VPN to work from inside the
> network (a client that's plugged into the Sonicwall can connect to the
> VPN). Clients plugged into the Netopia, do NOT VPN in.
>
> I believe some of my issues are:
> 1. Why am I using two different NAT's in my situation?
> 2. Why am I using DHCP on the Sonicwall LAN interface, make it static
>
> Any help is greatly appreciated. TIA!