Currently I'm using the following iptables rules for my remote (server) geth node:
# Allow all loopback (lo0) traffic and reject traffic
# to localhost that does not originate from lo0.
Do I need to open BOTH TCP and UDP 30303 on my router? Or only TCP?
EDIT: I am also unclear if the UDP protocol should be opened on Port 30301 instead (as discussed on this page: https://github.com/...