I have some questions regarding the DHCP Relay function of the SA520W device.
Firstly, in the LAN Configuration you can set the DHCP Mode of the device to DHCP Relay. Does this mean that the SA520W acts as a DHCP-Relay?
Secondly, if the SA520W does act as a DHCP-Relay, then is it capable of relaying the DHCP request over an IPSEC VPN tunnel built from the SA520W device?
To expand, my scenario is as follows:
I have IPSEC tunnel built between two SA520W devices connecting Site 1 and Site 2 together.
The local subnet of site 1 is 192.168.100.0/24
The local subnet of Site 2 is 192.168.200.0/24
Site 1 has a DHCP Server using IP 192.168.100.50
The DHCP Server has a scope configured for clients using the following range: 192.168.200.20 - 192.168.200.40
I have set the SA520W at Site 2 to use DHCP Relay Mode and have set the DHCP Relay Gateway to 192.168.100.50
When I try to get a client to pick up a DHCP address at site 2, it fails. From looking at the logs I can see the DHCP Discover broadcast get to the site 2 SA520W. However I see no traffic being sent on to the Relay Gateway address and I also see no traffic at Site 1 (SA520W or Wireshark on the DHCP Server).
If anyone has any info that may help, then it would be much appreciated.
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