Table of Contents
Advertisement
BT Versatility
Broadband Module/Broadband Module Plus Manual
Security Level
There are four pre-defined security levels (high, medium, low and none) that contain different
security filters for each interface (WAN/LAN, WAN/DMZ, DMZ/LAN). When None is selected, all
traffic is blocked. Additional filters can be added to each security level as required.
The default setting is High Security Level.
The Medium Security level has additional filters. For example it is set up to allow access to a web
server or a mail server on the DMZ from the External interface.
The Low Security level adds more filters. For example, as well as allowing access to a web server
or a mail server on the DMZ, it also allows Telnet and FTP access from the External interface.
The pre-defined security configurations are:
High Security Level
(from any source IP address or any
source port)
Service
Destination Port
ICMP
N/A
Any
TCP
Any
UDP
RMCP
TCP
TCP
ISAKMP
UDP
SSL
TCP
Kerberos
TCP
Kerberos
UDP
HTTP
TCP
DNS
UDP
Telnet
TCP
SMTP
TCP
POP3
TCP
FTP
TCP
SSH
TCP
SIP
UDP
IPT
TCP
Medium Security Level
(from any source IP address or any
source port)
Service
Destination Port
ICMP
N/A
Any
TCP
Any
UDP
RMCP
TCP
TCP
ISAKMP
UDP
SSL
TCP
Kerberos
TCP
Kerberos
UDP
HTTP
TCP
DNS
UDP
Telnet
TCP
60
External
<>
Internal
In
N/A
F
0 -65535
F
0 - 65535
F
50
F
51
F
500
F
443
F
88
F
88
F
80
F
53
F
23
F
25
F
110
F
21
F
22
F
5060 - 6000
T
5566
T
External
<>
Internal
In
N/A
F
0 - 65535
F
0 - 65535
F
50
F
51
F
500
F
443
F
88
F
88
F
80
F
53
F
23
F
External
<>
DMZ
Out
In
Out
T
F
T
T
F
T
T
F
T
T
F
T
T
F
T
T
F
T
T
F
T
T
F
T
T
F
T
T
T
T
T
T
T
T
F
T
T
F
T
T
F
T
T
F
T
T
T
T
T
T
T
T
T
T
External
<>
DMZ
Out
In
Out
T
F
T
T
F
T
T
F
T
T
F
T
T
F
T
T
F
T
T
F
T
T
F
T
T
F
T
T
T
T
T
T
T
T
F
T
DMZ
<>
Internal
In
Out
F
T
F
T
F
T
T
F
T
F
T
F
T
F
T
F
T
F
F
T
T
T
F
T
F
T
F
T
F
T
T
F
T
T
T
T
DMZ
<>
Internal
In
Out
F
T
F
T
F
T
T
F
T
F
T
F
T
F
T
F
T
F
F
T
T
T
F
T
Advertisement
Table of Contents
