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Shane McKeown
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Sonicwall VPN and DHCP Setup

Folks

We have a customer with a Sonicwall TZ300 which they want to setup VPN client access for remote users etc...

I have got the VPN to work when I click on the 'Use internal DHCP server' and the 'for Global VPN clients' options within the VPN/DHCP Over VPN section of the unit...

The issue is the customer has an existing 2012 R2 server within the network serving as a DHCP(since they want to use the Windows server version of DHCP etc...)

Is it possible to make these 2 work together? Or how do I setup the DHCP on the Sonicwall to pass through to the internal DHCP? I tried using the 'Send DHCP requests to the server listed below' option but this doesn't seem to work.

Need some help if someone has done this or has a similar setup to the above

Thanks
Shane
DHCPVPNSonicWall

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Shane McKeown

8/22/2022 - Mon
Rob Williams

Is there a "use DHCP relay" option on the SonicWALL?
ASKER CERTIFIED SOLUTION
ccomley

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Rob Williams

Odd that doesn't work.
ccomley

Works here, for years! Might need to take it up with Sonicwall then...
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William Peck
Aaron Tomosky

Did you add the vpn scope to the windows server?
Rob Williams

Should use the existing scope by default.
Shane McKeown

ASKER
Hi ccomley

That did the trick - the issue was I had the 'Use internal DHCP' ticked as well which probably wasn't right...now I can see it connecting and getting IP from the internal DHCP - many thanks!

Rob - the relay I tried yes but also couldn't get that working...might have been swapping too many things at once which wasn't helping

Aaron - I assumed the internal scope would be fine and obviously its working - but using a different scope would be nice for sure cause I could tell VPN connections from internal connections - how do I do that on the 2012 server though? Or asked a different way how does the vpn client know to use that alternate scope?

Sorry if I need to ask this as a separate question I'll do that
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Shane McKeown

ASKER
Hi Aaron

Ok thanks for that link, I'll review and see what i can do
Shane McKeown

ASKER
Thanks for the help lads...