HP StorageWorks 4/256 HP StorageWorks Fabric OS 5.3.x administrator guide (569 - Page 134
IP filter policy, Creating an IP Filter policy
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IP filter policy The IP Filter policy is a set of rules applied to the IP management interfaces as a packet filtering firewall. The firewall permits or denies the traffic to go through the IP management interfaces according to the policy rules. Fabric OS supports multiple IP Filter policies to be defined at the same time. Each IP Filter policy is identified by a name and has an associated type. Two IP Filter policy types, IPv4 and IPv6, exist to provide separate packet filtering for IPv4 and IPv6. It is not allowed to specify an IPv6 address in the IPv4 filter, or specify an IPv4 address in the IPv6 filter. There can be up to six different IP Filter policies defined. Only one IP Filter policy, however, for each IP Filter policy type, can be activated on the affected management IP interfaces. Audit messages will be generated for any changes to the IP Filter policies. The rules in the IP Filter policy are examined one at a time until the end of the list of rules. For performance reasons, the most import rules must be specified at the top. On a chassis system, changes to persistent IP Filter policies are automatically synchronized to the standby CP when the changes are saved persistently on the active CP to the standby CP. The standby CP will enforce the filter policies to its management interface after policies are synchronized with the active CP. Creating an IP Filter policy You can create an IP Filter policy with the specified name and type. The policy created is stored in a temporary buffer, and will be lost if the current command session logs out. The policy name is a unique string composed of a maximum of 20 alpha, numeric, and underscore characters. The names default_ipv4 and default_ipv6 are reserved for default IP filter policies. The policy name is case insensitive and always stored as lower case. The policy type identifies the policy as an IPv4 or IPv6 filter. There can be a maximum of eight IP Filter policies created. To create an IP Filter policy: 1. Log in to the switch as admin. 2. Type in the following command: ipfilter --create -type < ipv4 | ipv6 > where is the name of the new policy and -type specified as an IPv4 or IPv6 address. Cloning an IP Filter policy You can create an IP Filter policy as an exact copy of an existing policy. The policy created is stored in temporary buffer and has the same type and rules as the existing defined or active policy. To clone an IP Filter policy: 1. Log in to the switch as admin. 2. Type the following command: ipfilter --clone -from where is the name of the new policy and is the name of the policy you want to copy. 136 Configuring advanced security
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