140 Chapter 8 - IntraGuard Firewall Configuration
• DNSUse defines how DNS (Domain Name Service) packets will be
handled on the path. DNS is the protocol which translates IP addresses
into hostnames and hostnames into IP addresses.
• FTPUse defines how FTP (File Transfer Protocol) packets will be
handled on the path. Dynamic sessions are created for file transfers using
the PASV and PORT commands.
• H323Use defines how H323 packets will be handled on the path. H323
is a video and audio conferencing protocol.
• IPSecUse defines how IPSec (Internet Protocol Security) packets will be
handled on the path. Both encrypted (ESP) and authenticated (AH)
packets are supported.
• IRCUse defines how IRC (Internet Relay Chat Protocol) packets will be
handled on the path.
• LPRUse defines how LPR packets will be handled on the path. LPR is a
network printing protocol.
• MailUse defines how SMTP (Simple Mail Transfer Protocol) packets
will be handled on the path. This protocol is used to send mail between
servers.
• NFSUse defines how NFS (Network File Sharing Protocol) packets will
be handled on the path. To permit NFS In, it may be necessary to set
SunRPCUse to In as well.
• NetBIOSUse defines how NetBIOS packets will be handled on the path.
NetBIOS is Microsoft’s file sharing protocol.
• NewsUse defines how NNTP (Network News Transfer Protocol) packets
will be handled on the path.
• NonIPUse defines how non-IP packets will be handled on the path. This
would include other protocols such as AppleTalk and IPX.
• OSPFUse defines how OSPF (Open Shortest Path First) packets will be
handled on the path. OSPF is a link state routing protocol.
• POPUse defines how POP packets will be handled on the path. POP is a
mail client protocol. This protocol allows users to receive mail.
• RIPUse defines how RIP (Routing Information Protocol) packets will be
handled on the path.
• RealAudioUse defines how Internet Real Audio Protocol packets will be
handled on the path. Real Audio is an audio and video conferencing
protocol.