The confusion may come from the RFC which says :
Router ID
A 32-bit number that uniquely identifies this router in the AS.
One possible implementation strategy would be to use the
smallest IP interface address belonging to the router.
But if you are going for a Cisco exam, make sure to answer the what Vincent
describe below.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Vincent
Sent: Friday, April 06, 2001 12:24 PM
To: [EMAIL PROTECTED]
Subject: Re: OSPF Router ID
Router ID sequence in ospf
1) Loopback IP address,
2) No loopback address configured, router will choose the numerically
highest IP address on any of its
Physical interface, as long the interface is up.
Hope this help
Vincent
""Larry Ogun-Banjo"" <[EMAIL PROTECTED]> ?????
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> I saw something confusing about OSPF Router ID which I haven't checked out
but I
> thought if its true, it could be a brain teaser during the BSCN exam
> According to the official BSCN documentation, the router ID takes on the
highest
> IP address.
> But according to another training document, if you have a loopback address
> configured, the router ID is the lowest active address on the router.
> Does anyone know if this is true and why the addresses would change?
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