TMS zl Management and Configuration Guide ST.1.0.090213

1-52
Overview
Firewall
Table 1-7. Supported ALGs
Port Triggers
The firewall in the TMS zl Module can handle some dynamic connections with
the ALGs. But for applications not supported by the ALGs, you must configure
port triggers. A port trigger policy is activated or “triggered” when the initial
control connection is made. The connection through the dynamically negoti-
ated port can be in the same direction or in the opposite direction of the initial
connection. You configure inbound and outbound ports separately because
some applications use different ports for each traffic direction.
See “Port Triggers” in Chapter 4: “Firewall.”
ALG
General
DNS (for internal DNS server hosting)
FTP
ILS (Internet Location Server for Microsoft NetMeeting)
ILS2
NetBIOS
NNTP (Microsoft News Server, Outlook Express 6)
RPC
SMTP (SurgeMail, Ability Mail Server)
SQL (SQL*Plus 8.1.5.x, Oracle)
TFTP
Voice and Video
RTSPv4 (QuickTime, Real Player)
Security
ESP
IKE
L2TP
PPTP
Communications (Chat)
AIM
IRC
Microsoft Network Messenger (MSN)