IGNORE address from PROXY header, but accept connection.

REJECT connection when PROXY header is sent Note: even though the first read on the connection returns an error if a PROXY header is present, subsequent reads do not.

REQUIRE connection to send PROXY header, reject if not present Note: even though the first read on the connection returns an error if a PROXY header is not present, subsequent reads do not.

SKIP accepts a connection without requiring the PROXY header Note: an example usage can be found in the SkipProxyHeaderForCIDR function.

USE address from PROXY header.

ListenerWrapper provides PROXY protocol support to Caddy by implementing the caddy.ListenerWrapper interface.