Atmp Example - Netopia 4541 User Reference Manual

10-26 User's Reference Guide
Select Output Filter 2 and press Return. In the Change Output Filter 2 screen, set the Protocol Type to allow
GRE as shown below.
Enabled:
Forward:
Source IP Address:
Source IP Address Mask:
Dest. IP Address:
Dest. IP Address Mask:
Protocol Type:

ATMP example

To enable a firewall to allow ATMP traffic, you must provision the firewall to allow inbound and outbound UDP
packets specifically destined for port 5150. The source port may be dynamic, so often it is not useful to apply
a compare function on this portion of the control/negotiation packets. You must also set the firewall to allow
inbound and outbound GRE packets (Protocol 47, Internet Assigned Numbers Document, RFC 1700), enabling
transport of the tunnel payload.
From the Main Menu navigate to Display/Change IP Filter Set, and from the pop-up menu select Basic Firewall.
Main
Menu
Select Display/Change Input Filter.
Display/Change Input Filter screen
+--#----Source IP Addr----Dest IP Addr------Proto-Src.Port-D.Port--On?-Fwd--+
+---------------------------------------------------------------------------+
| 1 0.0.0.0
| 2 0.0.0.0
|
+---------------------------------------------------------------------------+
Change Output Filter 2
System
Configuration
0.0.0.0
0.0.0.0
Yes
Yes
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
GRE
Filter Display/Change
Sets Filter Set
TCP NC
TCP NC
Basic
Firewall
=2000 Yes No |
=6000 Yes No |
|