WSM User Guide - WatchGuard Technologies

Packet Filter PoliciesIRCInternet Relay Chat (IRC) is a system for Internet chatting. To use IRC you must have an IRC client andInternet access. The IRC client is a software application on your computer that sends and receives messagesto and from an IRC server. The IRC server makes sure that all messages are sent to all users in thechat session.Characteristics• Internet Protocol(s): TCP• Port Number(s): 6667Intel Video PhoneIntel Video Phone is a real-time multimedia application based on H.323. H.323 is an international standardfor conferencing over TCP/IP networks. This policy does not filter for dangerous content. It doesnot support QoS or rsvp protocol, and it does not support NAT.Characteristics• Internet Protocol(s): TCP• Port Number(s): 1720, 522Kerberos v 4 and Kerberos v 5The Kerberos network authentication protocol is an authentication system developed by the MassachusettsInstitute of Technology (MIT). Kerberos enables two computers to exchange private informationacross an open network using authentication for security.Characteristics• Internet Protocol(s): TCP and UDP• Kerberos v 4 Port Numbers(s): UDP 750• Kerberos v 5 Port Number(s): TCP 88 and UDP 88L2TPLayer 2 Tunneling Protocol (L2TP) is an extension to the PPP protocol that enables ISPs to operate virtualprivate networks.Characteristics• Internet Protocol(s): UDP• Port Number(s): 1701LDAPLightweight Directory Access Protocol (LDAP) is an open-standard protocol for using online directoryservices. The protocol operates with Internet transport protocols, such as TCP. You can use LDAP to getaccess to stand-alone directory servers or X.500 directories.386 WatchGuard System Manager