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RBK852 behind DDWRT VPN
Hi network gurus. Bit of a confused networking novice here. I've got an R7000 running DDWRT mainly for the policy based routing for specific IPs through a VPN client. I'd like to relieve it of DH...
DHCP is a minimal work load. (very close to zero)
I did not mean to be abrupt on the previous answer, but was "out and about" typing on a cell phone.
The DHCP protocol for managing IP addresses consists of six tiny packets of data:
https://en.wikipedia.org/wiki/Dynamic_Host_Configuration_Protocol
The default lease time for residential routers is typically one day (86,400 seconds). Devices seek to renew the lease when it is half expired (43,200 seconds). So, if there are 100 devices on the network, they will create 1,200 tiny data packets in a full day (add in some more for devices that get turned off/on or leave and come back, and the total is still well under 2,000 packets per day.
Processing a couple of thousand DHCP packets is practically nothing compared to routing all the VPN traffic and processing every packet that goes to/from the internet.
If DD-WRT has logging enabled, that will consume far more resources than DHCP management.
p.s. I am 99% certain that placing any router in "bridge" or "passthrough" mode renders it incapable of any routing functions, such as that VPN management which is the primary reason for placing this router ahead of the Orbi.