Cisco 7604 Configuration Guide - Page 243
Displaying Object Groups, show object-group
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Chapter 13 Identifying Traffic with Access Lists Simplifying Access Lists with Object Grouping If you make two network object groups, one for the inside hosts, and one for the web servers, then the configuration can be simplified and can be easily modified to add more hosts: hostname(config)# object-group network denied hostname(config-network)# network-object host 10.1.1.4 hostname(config-network)# network-object host 10.1.1.78 hostname(config-network)# network-object host 10.1.1.89 hostname(config-network)# object-group network web hostname(config-network)# network-object host 209.165.201.29 hostname(config-network)# network-object host 209.165.201.16 hostname(config-network)# network-object host 209.165.201.78 hostname(config-network)# access-list ACL_IN extended deny tcp object-group denied object-group web eq www hostname(config)# access-list ACL_IN extended permit ip any any hostname(config)# access-group ACL_IN in interface inside Displaying Object Groups To display a list of the currently configured object groups, enter the following command: hostname(config)# show object-group [protocol | network | service | icmp-type | id grp_id] If you enter the command without any parameters, the system displays all configured object groups. The following is sample output from the show object-group command: hostname# show object-group object-group network ftp_servers description: This is a group of FTP servers network-object host 209.165.201.3 network-object host 209.165.201.4 object-group network TrustedHosts network-object host 209.165.201.1 network-object 192.168.1.0 255.255.255.0 group-object ftp_servers Removing Object Groups To remove an object group, enter one of the following commands. Note You cannot remove an object group or make an object group empty if it is used in an access list. • To remove a specific object group, enter the following command: hostname(config)# no object-group grp_id • To remove all object groups of the specified type, enter the following command: hostname(config)# clear object-group [protocol | network | services | icmp-type] If you do not enter a type, all object groups are removed. OL-20748-01 Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM 13-17
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