Filtering rule for smtp connection – NetComm G.SHDSL 4-port Security Modem Routers NB712 User Manual
Page 53
NB712 / NB714 User Guide
53
YML829 Rev1
Filtering Rule for SMTP connection
Filtering rule will be configured as follow
Index
Protocol
Direction
Action
Source
Destination
Dest. Port
Schedule
1
TCP
Inbound
Permit
External
Internal
25
Always
2
TCP
Outbound
Permit
Internal
External
>1023
Always
3
TCP
Outbound
Permit
Internal
External
25
Always
4
TCP
Inbound
Permit
External
Internal
>1023
Always
5
Any
Either
Deny
Any
Any
Any
Always
Packet
Direction
Source
Destination
Protocol
Dest. Port
Action (Rule)
1
Inbound
192.168.3.4
172.16.1.1
TCP
25
Permit (A)
2
Outbound
172.16.1.1
192.168.3.4
TCP
1234
Permit (B)
Packet
Direction
Source
Destination
Protocol
Dest. Port
Action (Rule)
3
Outbound
172.16.1.1
192.168.3.4
TCP
25
Permit (C)
4
Inbound
192.168.3.4
172.16.1.1
TCP
1357
Permit (D)
Packet
Direction
Source
Destination
Protocol
Dest. Port
Action (Rule)
5
Inbound
10.1.2.3
171.16.3.4
TCP
6000
Deny (E)
6
Outbound
171.16.3.4
10.1.2.3
TCP
5150
Deny (E)