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Filtering rule for smtp connection – NetComm G.SHDSL 4-port Security Modem Routers NB712 User Manual

Page 53

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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)

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