Firewall CLI Commands
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10.3.3 Options
The following tables describe the default portfilters enabled in the firewall for
each of the high, medium and low security levels. The tables tell you whether
a certain service can be received in or allowed out by a specific policy. (Y=yes;
N=no):
HIGH
SECURITY LEVEL
External
< >
Internal
External
< >
DMZ
DMZ
< >
Internal
Service
Port In Out In Out In Out
http
80 N Y Y Y Y Y
dns
53 N Y N Y N Y
telnet
23 N N N N N N
smtp
25 N Y Y Y Y Y
pop3
110 N Y Y Y Y Y
nntp
119 N N N N N N
real
audio/video 7070 N N N N N N
icmp
N/A N Y N Y N Y
H.323
1720 N N N N N N
T.120
1503 N N N N N N
SSH
22 N N N N N N