Nortel 6220 User Manual page 174

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Permit Outgoing Destination Unreachable-- Permit Destination
Unreachable packets generated on the (private) local network to be sent
to external machines
Permit Outgoing Source Quench-- Permit Source Quench messages
generated by gateways on the local network to be sent to remote
machines sending packets to that gateway.
Permit Outgoing Redirect-- Permit Redirect messages generated by
gateways on the local network to be sent to remote machines sending
packets to that gateway.
Permit Outgoing Time Exceeded-- Permit Time Exceeded messages
generated by gateways on the local network to be sent to remote
machines sending packets to that gateway.
Permit Outgoing Parameter Problem-- Permit the local network to
send Parameter Problem messages to the remote network when there was
a problem with the header parameters of a packet.
Permit Other Outgoing ICMP Packets-- Permit other ICMP packets
not listed above to be sent from the local network to the remote network.
Permit All Button-- Clicking this button selects all checkboxes on the
Outgoing ICMP Filters screen.
Deny All Button-- Clicking this button de-selects (un-checks) all
checkboxes on the Outgoing ICMP Filters screen.
Permit Conservative Button-- Clicking this button automatically
selects all checkboxes on the Outgoing ICMP Filters screen except for
the Permit Other Outgoing ICMP Packets checkbox.
Incoming ICMP Filters
Clicking on the Incoming ICMP button on the Firewall Setup screen
displays the Incoming ICMP Filter screen, which allows you to permit or
deny ICMP packets from coming in from 'remote' to 'local' interfaces.
This allows you to deny diagnostic messages requested from external
(un-trusted) sources in this filter from being sent to your local (private)
machines.
WLAN Cable Access Point 6220 CSU NTPM99CA Rel 2.0 Issue 5 Dec 2005