Cisco 7604 Configuration Guide - Page 131
Adding a Management Interface, standby, allocate-interface
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Chapter 6 Configuring Interface Parameters Configuring Interfaces for Transparent Firewall Mode Do not assign a host address (/32 or 255.255.255.255) to the transparent firewall. Also, do not use other subnets that contain fewer than 3 host addresses (one each for the upstream router, downstream router, and transparent firewall) such as a /30 subnet (255.255.255.252). The FWSM drops all ARP packets to or from the first and last addresses in a subnet. Therefore, if you use a /30 subnet and assign a reserved address from that subnet to the upstream router, then the FWSM drops the ARP request from the downstream router to the upstream router. The FWSM does not support traffic on secondary networks; only traffic on the same network as the management IP address is supported. The standby keyword and address is used for failover. See Chapter 14, "Configuring Failover," for more information. The following example assigns VLANs 300 and 301 to bridge group 1, then sets the management address and standby address of bridge group 1: hostname(config)# interface vlan 300 hostname(config-if)# nameif inside hostname(config-if)# security-level 100 hostname(config-if)# bridge-group 1 hostname(config-if)# interface vlan 301 hostname(config-if)# nameif outside hostname(config-if)# security-level 0 hostname(config-if)# bridge-group 1 hostname(config-if)# interface bvi 1 hostname(config-if)# ip address 10.1.3.1 255.255.255.0 standby 10.1.3.2 Adding a Management Interface In addition to each bridge group management IP address, you can add a separate management interface that is not part of any bridge group, and that allows only management traffic to the FWSM. For more information, see the "Information About Device Management" section on page 6-4. To configure a management interface, perform the following steps: Step 1 Step 2 Step 3 To specify the interface you want to configure, enter the following command: hostname(config)# interface {vlan number | mapped_name} In multiple context mode, enter the mapped name if one was assigned using the allocate-interface command. For example, enter the following command: hostname(config)# interface vlan 101 To name the interface, enter the following command: hostname(config-if)# nameif name The name is a text string up to 48 characters, and is not case-sensitive. You can change the name by reentering this command with a new value. Do not enter the no form, because that command causes all commands that refer to that name to be deleted. To set the security level, enter the following command: OL-20748-01 Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM 6-7
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