# used by plugins/relay
# IPv4 format is IP, or IP part with trailing dot
# e.g. "127.0.0.1", or "192.168."
127.0.0.1 
# leading/trailing whitespace is ignored
 192.0. 
#
# IPv6 formats can be compressed or expanded, may include a prefixlen,
# and can end on any nibble boundary. Nibble boundaries must be expressed
# in expanded format.  (RFC 3849 example)
2001:0DB8
2001:DB8::1
2001:DB8::1/32
2001:0DB8:0000:0000:0000:0000:0000:0001