The range for well-known ports managed by the IANA is 0-1023. Larry Scott tacacs 49/tcp Login Host Protocol (TACACS) tacacs 49/udp Login Host .. irc 194/tcp Internet Relay Chat Protocol irc 194/udp Internet Relay Chat Protocol de-cache-query de-server 1256/tcp de-server de-server 1256/udp de-server # Jeff .