Multi-Tech Systems RJ-9 Benutzerhandbuch

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Chapter 3 – Using the Web Management Software 
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375B) 
42 
 
 
Packet Filters > Advanced 
 
 
Connection Tracking 
H323: 
Enable/disable the forwarding of H323 packets across the firewall. 
PPTP: 
Enable/disable PPTP Packet Pass-through (PPTP NAT support). 
ICMP Configuration 
 
The Internet Control Message Protocol (ICMP) is used to test the network connections and the functionality 
of the firewall and is also used for diagnostic purposes. ICMP on Firewall and ICMP Forwarding always 
apply to all IP addresses; i.e., Any. When these are enabled, all IP hosts can Ping the firewall (ICMP on 
Firewall
) or the network behind it (ICMP Forwarding). 
ICMP on LAN: 
Enable/disable the transfer of ICMP packets on the LAN interface. 
ICMP on WAN: 
Enable/disable the transfer of ICMP packets on the WAN interface. 
ICMP Forward: 
Enable/disable the forwarding of ICMP packets through the firewall into the local 
network. 
Submit 
Click the Submit button to save these settings.
 Note: 
You must click Save and Restart once you have 
completed and submitted all the screens on which you have made changes.