What Can Be Filtered; Packet Filtering And Nat - Avaya 3.7 Configuration Manual

What can be filtered

Table 10 lists the specific types of traffic that can be filtered.
Table 10: Traffic types that can be filtered
User-defined TCP
User-defined IP
User-defined UDP
AURP
Bootpc
Bootps
Bordergw
Chargen
Chargen/UDP
CMD
Discard
Domain
Domain/TCP
Discard/UDP
Dynamic/TCP
Dynamic/UDP
Echo
Echo/UDP

Packet Filtering and NAT

Network address translation (NAT) and packet filtering services can be run simultaneously.
Depending on the direction of the traffic, the VSU automatically determines which sequence the
services will run.
For inbound packets (to the WAN), NAT is run first, then filtering. For outbound packets, filtering
is run first, followed by NAT.
Exec
Finger
FTP
FTP/data
Gopher
Gopher/UDP
ICMP
IDIRACCP
IPX/TCP
IPX/UDP
IPrelay
IPtunnel
Kerberos
Login
Nameserver
Nameserver/TCP
NetBIOS/TCP
NetBIOS/UDP
Netware-IP/TCP
Netware-IP/UDP
Nettimep
NFS
NFS/TCP
NNTP
NNTP/UDP
NWIP-DSS/TCP
NWIP-DSS/UDP
Printer
Relaychat
SMTP
SNMP
SNMP-Trap
Telnet
TFTP
UUCP
UUCP-Path
Packet Filtering
VPN-AuthGW
VPN-KeepAlive
VPtunnel
Who
WWW-HTTP
WWW-HTTP/UDP
XDMCP
Issue 4 May 2005 185