Archive for August, 2010
Hostname X is not a legal LAT node name
Interesting error message occurred when changing host name on a Cisco router, 1841:
old-router-name-is-here(config)#hostname my-new-router-name-here % Hostname "MY-NEW-ROUTER- " is not a legal LAT node name, Using "CISCO_CADD00" my-new-router-(config)#
If the host name being configured is longer than sixteen characters the router will advise that it will use a new host name, however the configuration will still display the one that you intended to use.
Read Full Post | Make a Comment ( None so far )IOS Object Groups
The feature is first available in IOS version 12.4.20T, more information can be found here http://www.cisco.com/en/US/docs/ios/sec_data_plane/configuration/guide/sec_object_group_acl.html
Simplifies ACL configuration (and QoS, or other features), by grouping networks or services, e.g.
permit tcp object-group source-networks host 10.1.1.1 eq www 8080 ! object-group network source-networks host 10.1.99.1 network 192.168.1.0 /24 range 172.16.1.1 172.16.1.5
Object-groups can also be used to group services (protocols), e.g.
permit tcp object-group service-ip-telephony object-group source-networks host 10.1.1.1 eq www 8080 ! object-group service service-ip-telephony permit udp eq tftp permit tcp eq www 2000Read Full Post | Make a Comment ( None so far )
Technical Notes 