GVC and DHCP

djhurt1

I blew out our GVC interface by mistake. I threw it back together as best I could from scratch in a hurry and it's been working for months now. I'm moving it to a different interface and upon reviewing the instructions to set it up again it says I need to configure DHCP over VPN. I didn't do that previously and it's working fine. I simply setup a DHCP scope on the interface I set the GVC on. What's the magic behind "DHCP over VPN"?

Drew_Schwedland

It is basically just so you can direct the DHCP messages to 1 DHCP server if you want to do that. I don't believe you actually need to do that with GVC. The only documentation I can find about it is for site to site VPNs. I wouldn't even bother setting it up. We use SSL VPN and all I did was set up a range of IP addresses and didn't need to establish a DHCP server for them. Hope this helps!

MitatOnge

Hi @djhurt1

You can use a few scenario for gvc.

1) you can use sonicwall dhcp server.

https://www.sonicwall.com/support/knowledge-base/what-are-different-options-to-assign-ip-address-to-the-global-vpn-client-gvc-virtual-adapter/170503310702059/

https://www.sonicwall.com/support/knowledge-base/how-can-i-configure-ipsec-client-based-vpn-for-remote-users/170505850768290/

2) you can use external dhcp servers.

https://www.sonicwall.com/support/knowledge-base/configure-dhcp-over-vpn-to-use-an-external-dhcp-server/170504661899721/

3) you can deploy sonicwall fw as a dhcp server for all vpn remote sites.

https://www.sonicwall.com/support/knowledge-base/vpn-using-ip-helper-to-obtain-dhcp-over-a-policy-based-site-to-site-vpn-tunnel/170503864888105/