It runs DNS and DHCP as well (so we have a domain that's the same as the house name); the DNS is primarily caching so for most sites it's just stock internet (except a bit faster due to the caching). It's also authoritative for a small number of domains that serves ads/do tracking (it's amazing how much better that makes the internet, even the kids comment on how fast it is compared to their friends - and we're out in the sticks on a relatively slow connection).