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show 802.1x non-supp User Documentation Addendum
page 1-12 Release 5.1.6.R02 User Guide Supplement June 2005
Note the following when configuring the Loopback0 interface:
• The interface name, “Loopback0”, is case sensitive.
• The admin parameter is the only configurable parameter supported with this type of interface.
• The Loopback0 interface is always active and available.
• Only one Loopback0 interface per switch is allowed.
• Creating this interface does not deduct from the total number of IP interfaces allowed per VLAN or
switch.
Loopback0 Address Advertisement
The Loopback0 IP interface address is automatically advertised by the IGP protocols RIP and OSPF when
the interface is created. There is no additional configuration necessary to trigger advertisement with these
protocols.
Note the following regarding Loopback0 advertisement:
• RIP advertises the host route to the Loopback0 IP interface as a redistributed (directhost) route.
• OSPF advertises the host route to the Loopback0 IP interface in its Router-LSAs (as a Stub link) as an
internal route into all its configured areas.
Configuring a BGP Peer Session with Loopback0
It is possible to create BGP peers using the Loopback0 IP interface address of the peering router and bind-
ing the source (i.e., outgoing IP interface for the TCP connection) to its own configured Loopback0 inter-
face. The Loopback0 IP interface address can be used for both Internal and External BGP peer sessions.
For EBGP sessions, if the External peer router is multiple hops away, the ebgp-multihop parameter may
need to be used.
The following example command configures a BGP peering session using a Loopback0 IP interface
address:
-> ip bgp neighbor 2.2.2.2 update-source Loopback0
See the OmniSwitch 7700/7800/8800 Advanced Routing Configuration Guide for more information.
Chapter 22, “Configuring 802.1X”
Quick Steps for Configuring 802.1X
On page 22-3 the following two new steps should be added to this section:
6 (Optional) Configure a guest VLAN for the 802.1x port using the 802.1x guest-vlan command.
-> 802.1x 3/1 guest-vlan 5
7 (Optional) Configure the number of times supplicant devices are polled for identification using the
802.1x supp-polling retry command.
-> 802.1x 3/1 supp-polling retry 10
On page 22-3 of this section replace the Note information about how to display 802.1x configuration and
user information with the following: