Firewall ICMP

Configure ICMP settings. ICMP communicates error, diagnostic and control messages. Examples of ICMP messages include echo (ping) and 'destination unreachable'.

Note: This web page is controlled by the Security Profiles field in the Personal Firewall Basic Configuration page. If a fixed profile (without the word 'Custom' in the name) is selected, this web page is read-only and no configuration change is allowed. The Edit column, "Apply", "Add Rule" and "Purge Table" buttons are removed. If a custom profile is selected, configuration change is allowed on this web page.

Parameters

**ICMP Default Action**
Parameter	Description
Inbound action	This rule is applied when an inbound packet contains an ICMP type/code pair that does not match any rule in the ICMP rule table.
Outbound action	This rule is applied when an outbound packet contains an ICMP type/code pair that does not match any rule in the ICMP rule table.

**ICMP Table**
Parameter	Description
Edit	Click the icon in the row of the rule that you want to edit. This opens the Rule Edit page where you can edit the fields.
ICMP type	Specifies the ICMP type Click on to sort in ascending order. Click on to sort in descending order. To edit this field, click the appropriate on the Edit column.
ICMP code	Specifies the ICMP code Click on to sort in ascending order. Click on to sort in descending order. To edit this field, click the appropriate on the Edit column.
Name	User-friendly name for the ICMP type/code pair. Click on to sort in ascending order. Click on to sort in descending order. To edit this field, click the appropriate on the Edit column.
Remote IP address	IP address of the remote machine or subnet. Click on to sort in ascending order. Click on to sort in descending order. To edit this field, click the appropriate on the Edit column.
Remote IP mask	IP address mask of the remote machine or subnet. To edit this field, click the appropriate on the Edit column.
Version	Specifies whether the rule is for ICMPv4 or ICMPv6. Click on to sort in ascending order. Click on to sort in descending order. To edit this field, click the appropriate on the Edit column.
Inbound action	Specifies the action for inbound network traffic
Outbound action	Specifies the action for outbound network traffic

Buttons

Button	Description
Apply	Apply or submit changes to the corresponding Default Action section or Table section.
Add rule	Add a rule to the table using the Add rule page.
Purge Table	Remove all rules from the table.