1) Set RouterID using the Router-ID command
2) Highest Loopback IP address
3) If no Loopback then the Highest ACTIVE IP address
Eric Fairfield
CCIE #6413
""Vincent"" <[EMAIL PROTECTED]> wrote in message
9ak9oe$d1n$[EMAIL PROTECTED]">news:9ak9oe$d1n$[EMAIL PROTECTED]...
> 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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