HP 640n Print Server manual 1IPsec/Firewall Policy

Table 5-1IPsec/Firewall Policy page

Item	Description
Enable IPsec/Firewall	Select the check box to enable your IPsec or Firewall policy. Clear this check box to
or	disable IPsec/Firewall operation.
Enable Firewall
IPsec/Firewall Rules	Configure up to ten rules in descending order of precedence. For example, Rule 1 is
	higher in precedence than Rule 2.
	Define each rule using the following fields:
	●	Enable Select whether a configured rule is enabled or disabled for the policy.
	●	Address Template Set the IP addresses for which the rule applies. Select
		among several predefined templates, or specify a custom template. Click on a
		template entry to view or modify the template configuration.
	●	Services Template Identify the services for which the rule applies. Select
		among several predefined templates, or specify a custom template. Click on a
		template entry to view or modify the template configuration.
		CAUTION: If the All Services template for a rule is not specified, a security
		risk can exist. Future networking applications deployed after the IPsec Policy is
		in place might not be IPsec-protected unless the All Services template is used.
		For example, installing a third-party Chai service plug-in, or upgrading firmware
		for the printer or print server, can result in a new service that is not covered by
		the IPsec policy. Review policies whenever firmware is updated or a new Chai
		applet is installed.
	●	Action on Match Define how to process the IP traffic that contains the
		addresses and services specified.
		For Firewall operation, the traffic is allowed or dropped, depending on the action
		specified by the rule.
		For IPsec operation, the traffic is allowed without IPsec protection, dropped, or
		IPsec-protected using an IPsec template specified for the rule. Click on a
		template entry to view or modify the template configuration.
Default Rule	Indicate whether the default rule drops or allows the traffic. The default rule specifies
	whether to process IP packets that do not match the configured rules.
	Select Drop (default) to discard traffic not covered by the configured rules.
	Select Allow to allow traffic that is not covered by the configured rules. Allowing IP
	packets that do not match the configured rules is not secure.
	For an example, see Default Rule example on page 108.
Add Rules	Select Add Rules to configure rules using the IPsec wizard..
Delete Rules	Select Delete Rules to remove one or more rules from the policy.
Advanced	Configure a Failsafe feature to prevent lock out of the print server over HTTPS
	(secure Web browser access) during IPsec/Firewall policy set up.

You can allow selected multicast and broadcast traffic to bypass your IPsec/Firewall policy. This might be required for device discovery by system installation utilities.

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