Birkhoff's Blog

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Changing default gateway in Unifi Security Gateway (USG)

Birkhoff Lee's Avatar June 12th 2019

I’ve recently replaced my home network hardware with the Unifi family, and I’ve been satisified about them.

I live in China, and I have a Linux box that runs transparent proxy. I need to change the DHCP default gateway to something else, but it was nowhere found in the GUI. After some searching I have the solution here. First SSH into your USG, and do the following:

configure
show service dhcp-server shared-network-name # check your network name
set service dhcp-server shared-network-name NETWORK_NAME_HERE subnet YOUR_SUBNET_HERE default-router NEW_GATEWAT_IP
delete service dhcp-server shared-network-name NETWORK_NAME_HERE subnet YOUR_SUBNET_HERE dns-server ORIGINAL_DNS_IP
set service dhcp-server shared-network-name NETWORK_NAME_HERE subnet YOUR_SUBNET_HERE dns-server NEW_DNS_IP
commit
save
exit

Remember to follow this to make the config persistant.