10-146 User’s Reference GuideSelect Output Filter 2 and press Return. In the Change Output Filter 2 screen, set the Protocol Type to allowGRE as shown below.ATMP exampleTo enable a firewall to allow ATMP traffic, you must provision the firewall to allow inbound and outbound UDPpackets specifically destined for port 5150. The source port may be dynamic, so often it is not useful to applya compare function on this portion of the control/negotiation packets. You must also set the firewall to allowinbound and outbound GRE packets (Protocol 47, Internet Assigned Numbers Document, RFC 1700), enablingtransport of the tunnel payload.From the Main Menu navigate to Display/Change IP Filter Set, and from the pop-up menu select Basic Firewall.Select Display/Change Input Filter.Display/Change Input Filter screenChange Output Filter 2Enabled: YesForward: YesSource IP Address: 0.0.0.0Source IP Address Mask: 0.0.0.0Dest. IP Address: 0.0.0.0Dest. IP Address Mask: 0.0.0.0Protocol Type: GREMainMenuSystem FilterSetsDisplay/ChangeFilter SetConfigurationBasicFirewall+--#----Source IP Addr----Dest IP Addr------Proto-Src.Port-D.Port--On?-Fwd--++---------------------------------------------------------------------------+| 1 0.0.0.0 0.0.0.0 TCP NC =2000 Yes No || 2 0.0.0.0 0.0.0.0 TCP NC =6000 Yes No || |+---------------------------------------------------------------------------+
