vconfig add command fails adding a VLAN on loopback interface with RHEL 5.9
Issue
We experience a problem creating a VLAN on the lookback interface with command vconfig, the error is shown in the following example:
# vconfig add lo 20
ERROR: trying to add VLAN #20 to IF -:lo:- error: Invalid argument
The same command was working on previous Red Hat edition
Kernel Linux 2.6.18-308.1.1.el5 #1 SMP Fri Feb 17 16:51:01 EST 2012 x86_64 x86_64 x86_64 GNU/Linux
, but fails with
Linux 2.6.18-346.el5 #1 SMP Mon Nov 12 21:37:23 EST 2012 x86_64 x86_64 x86_64 GNU/Linux
We use a VLAN on lookback as a way to create IP packages that can be capture by our application.
Environment
- Red Hat Enterprise Linux 5.9
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.
Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.
