VLAN Configuration Summary
14-2 802.1Q VLAN Configuration
Creating a Secure Management VLAN
By default at startup, there is one VLAN configured on the Enterasys C3 device. It is VLAN ID 1,
the DEFAULT VLAN. The default community name, which determines remote access for SNMP
management, is set to “public” with read-write access.
If the Enterasys C3 device is to be configured for multiple VLANs, it may be desirable to configure
a management-only VLAN. This allows a station connected to the management VLAN to manage
the device. It also makes management secure by preventing configuration via ports assigned to
other VLANs.
To create a secure management VLAN, you must:
The commands used to create a secure management VLAN are listed in Table 14-1. This example
assumes the management station is attached to ge.1.1 and wants untagged frames.
The process described here would be repeated on every device that is connected in the network to
ensure that each device has a secure management VLAN.
Step Task Refer to page...
1. Create a new VLAN. 14-5
2. Set the PVID for the desired switch port to the VLAN created in Step 1. 14-9
3. Add the desired switch port to the egress list for the VLAN created in
Step 1.
14-15
4. Assign host status to the VLAN. 14-18
5. Set a private community name and access policy. 12-13
Table 14-1 Command Set for Creating a Secure Management VLAN
To do this... Use these commands...
Create a new VLAN and confirm settings. set vlan create 2 (“set vlan” on page 14-5)
(Optional) show vlan 2 (“show vlan” on page 14-3)
Set the PVID to the new VLAN. set port vlan ge.1.1 2 (“set port vlan” on page 14-9)
Add the port to the new VLAN’s egress list. set vlan egress 2 ge.1.1 untagged (“set vlan egress” on
page 14-15)
Remove the port from the default VLAN’s
egress list.
clear vlan egress 1 ge.1.1 (“clear vlan egress” on
page 14-15)
Assign host status to the VLAN. set host vlan 2 (“set host vlan” on page 14-18)
Set a private community name and access
policy and confirm settings.
set snmp community private (“set snmp community” on
page 12-13)
(Optional) show snmp community (“show snmp
community” on page 12-13)
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