I am using a TalkTalk (UK) VDSL2 connection via bridged PTM to my TP-LINK Archer C7 V2. I am running LEDE.

TalkTalk uses DHCP to obtain an IP address and not DHCP as most other ISPs do.

I am trying to configure cake and I see these options on bufferbloat.net:

There are eight new keywords which deal with the basic ADSL configurations. These switch on ATM cell-framing compensation, and set the overhead based on the raw IP packet as a baseline.

ipoa-vcmux (8)
ipoa-llcsnap (16)
bridged-vcmux (24)
bridged-llcsnap (32)
pppoa-vcmux (10)
pppoa-llc (14)
pppoe-vcmux (32)
pppoe-llcsnap (40)bvn

How do I go about using these with OpenWRT?