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Raoul Edmonds
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Is it possible to access IP of modem while set as a bridge

I have a Sonicwall device that is connected in bridge mode to a Telstra Max modem (netgear).

During normal operation the modem is in bridge mode and the SonicWall WAN port gets the public ip address directly not a local/private address.

My local network address are in the range of 10.0.0.x. If I want to access the modem admin pages I need to change the settings on the SonicWall WAN port to Static & set an ip in the range 192.168.0.x so that I can access the modem on 192.168.0.1.

Is there away of accessing the modem while the bridge connection is active. I thought that it would be possible to create some sort of static route but don't know a lot about it and have had no luck.

Thanks for the assisstance.
RoutersHardware FirewallsNetworkingTCP/IPNetwork Architecture

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Blue Street Tech

8/22/2022 - Mon
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Raoul Edmonds

ASKER
Thank you diverseit.

I don't need to access it on a regular basis, however when troubleshooting I need to access the modem to see its status, signal strength etc. Maybe even switch it back to NAT mode.

But the modem still has a local  IP address. It still responds to traffic on that local IP address. As it still has the IP and responds to traffic on that IP I thought we could just ensure that all traffic for that IP was delivered. Can the SonicWall WAN ports be multihomed?

I I just connect a seond LAN from the mdem to the Network then if I tried to access 192.168.0.1 from the LAN would it find it?

Just now i realised as I am not using WAN 2 I could configure that to connect to the modem in the 192.168.0.x range. However I will be using it in the future so this is a temp work around at best.
Alptekin Keskin

static route woudlnt help , when you go out from 10.0.0.0 ip to access 192.168.x.x , it goes to wan anyways so if the modem was configure correctly like the cablevision modems does, you should be able to access it behind the sonicwall
try making a dmz ip on sonicwall and add 192.168 .x.x ip to that pc as well then try.
that might work , you ll be bypassing all the restrictions when you are on dmz
Sincerely
Alptekin Keskin
Predrag Jovic

I am not familiar with Sonicwall, but can you configure secondary ip address (192.168.0.x) on your Sonicwall WAN interface? If you can that would solve your problem.
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James Murphy
Blue Street Tech

It depends solely on you modem's capabilities...when I looked up your modem I see that is a home product and is not capable of VLAN. If it were capable of VLAN you could do this easily by setting up VLAN with SubInterfaces on the SonicWALL. Yes, SonicWALL does support multihomed on WAN ports.
Qlemo

Why should you need to use VLAN, diversit? Just defining a subinterface with say 192.168.0.2 should do.

The SonicWall is default gateway, so all traffic for different IPs than 10.x.x.x will go to the SonicWall, and then routed from there. If the SonicWall knows of how to get to 192.168.0.1, all is fine.
Blue Street Tech

Maybe I misread...I thought he said he could *not* get a local IP address. My bad :( So if that were the case I was going to suggest setting up a VLAN from the modem (if it were supported) into a newly created sub-Interface of X1...the switch would have to setup with that VLAN as well.

So, I agree, create sub-interface with the modem local address and all should be good.
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