Multi-Tech Systems RF660 User Manual
Chapter 6 – RouteFinder Software
Multi-Tech Systems, Inc. RouteFinderVPN RF760/660/600VPN User Guide (PN S000323D)
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Packet Filters > ICMP
Packet Filters > ICMP
ICMP (Internet Control Message Protocol) is necessary to test network connections and to test functionality of your firewall. It
is also used for diagnostic purposes.
ICMP-forwarding and ICMP-on-firewall always apply to all IP addresses (“Any”). When these are enabled, all IPs can ping
the firewall (ICMP-on-firewall) or the network behind it (ICMP-forwarding). Separate IP addresses can then no longer be
ruled out with packet filter rules. If the ICMP settings are disabled, separate IPs and networks can be allowed to send ICMP
packets through the firewall by using appropriate packet filter rules.
is also used for diagnostic purposes.
ICMP-forwarding and ICMP-on-firewall always apply to all IP addresses (“Any”). When these are enabled, all IPs can ping
the firewall (ICMP-on-firewall) or the network behind it (ICMP-forwarding). Separate IP addresses can then no longer be
ruled out with packet filter rules. If the ICMP settings are disabled, separate IPs and networks can be allowed to send ICMP
packets through the firewall by using appropriate packet filter rules.
ICMP Forwarding
Check the ICMP Forward checkbox to enable the forwarding of ICMP packets through the RouteFinder into the
local network and all connected DMZs. In this way you select whether an ICMP packet should be dropped or
passed through to the local network and all connected DMZs
local network and all connected DMZs. In this way you select whether an ICMP packet should be dropped or
passed through to the local network and all connected DMZs
.
If ICMP forward is enabled, ICMP packets go through all connected networks. Another use of ICMP
forwarding is to allow ICMP packets to be forwarded to individual networks (set in Packet Filter > Rules). For
this, ICMP forward in Packet Filter > ICMP must be disabled.
forwarding is to allow ICMP packets to be forwarded to individual networks (set in Packet Filter > Rules). For
this, ICMP forward in Packet Filter > ICMP must be disabled.
The status is activated by clicking the Save button.
ICMP on Firewall
Check the ICMP on LAN, ICMP on WAN, and/or ICMP on DMS firewall checkbox to enable the direct sending
and receiving of ICMP packets by the RouteFinder. Then click the Save button.
and receiving of ICMP packets by the RouteFinder. Then click the Save button.
Note:
To be able to use the tools Trace Route and Ping, the function ICMP on firewall must be enabled. After
a successful startup of the RouteFinder, it is recommended that you disable this rule so that the RouteFinder
cannot be pinged anymore.
cannot be pinged anymore.