Turning off the DHCP server

Installing and Using OpenWrt Network and Wireless Configuration
1

I'm using LEDE 17.01.4 on several WRT1900ACS routers, two of which are wireless access points only. On these I want to turn off the DHCP server as DHCP is provided by another router that these two are cabled to.

My question: Using the LuCI interface, if I click Network > Interfaces and then Edit for the LAN interface, scroll down to the DHCP Server section and then check the box labeled "Ignore interface" (Disable DHCP for this interface), does this disable both DHCPv4 and DHCPv6, or just DHCPv4?

2

Just ipv4, I think
That is for dnsmasq

Ipv6 is handled by odhcpd and it has separate config items.

3

Thanks. Under DHCP Server, IPv6 Settings tab, should I set Router Advertisement-Service and DHCPv6-Service both to disabled?

4

Sounds right to me

5

Besides to disable IPv4/6 DHCP in Luci, you can disable dnsmasq service. For me it is better way to do it. Refer https://forum.openwrt.org/viewtopic.php?id=50069