ITTips
Configuration modes
It exists 4 types of configuration modes:
- base: The one in which you are entering the switch. It is the equivalent of a non-privileged user in Linux
- enable: It is the equivalent of the root user in Linux but you can only see things and not change them
- conf t: you can do modification which affect the equipment globally
- interface: you do modification on interfaces
From this page:
http://www.cisco.com/en/US/docs/switches/lan/catalyst2960/software/release/12.2_25_see/configuration/guide/swvlan.html#wp1092283∞
Configuring the Native VLAN for Untagged Traffic :
A trunk port configured with IEEE 802.1Q tagging can receive both tagged and untagged traffic. By default, the switch forwards untagged traffic in the native VLAN configured for the port. The native VLAN is VLAN 1 by default.
Configure access-list on routers
Show a specific access-list from a show run
show run | inc access-list 111
To add an access-list, we need to dump the current access-list, paste it in a text editor, add the new rule, then:
conf t
no access-list 111
Paste the rules
exit
show access-list 111
wr mem
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