Atmp Example - Netopia 3341-ENT Firmware User Manual

5-28 Firmware User Guide
Enabled:
Forward:
Call Placement/Idle Reset:
Force Routing:
Source IP Address:
Source IP Address Mask:
Dest. IP Address:
Dest. IP Address Mask:
TOS:
TOS Mask:
Protocol Type:
Source Port Compare...
Source Port ID:
Dest. Port Compare...
Dest. Port ID:
Established TCP Conns. Only:
Return/Enter accepts * Tab toggles * ESC cancels.
Enter the packet specific information for this filter.
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:
Call Placement/Idle Reset:
Force Routing:
Source IP Address:
Source IP Address Mask:
Dest. IP Address:
Dest. IP Address Mask:
TOS:
TOS Mask:
Protocol Type:
Return/Enter accepts * Tab toggles * ESC cancels.
Enter the packet specific information for this filter.

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.
Change Output Filter 1
Yes
Yes
No Change
No
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0
0
TCP
No Compare
0
Equal
1723
No
Change Output Filter 2
Yes
Yes
No Change
No
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0
0
GRE