From: Muhammad Imran Shaikh (imshaikh7@hotmail.com)
Date: Sat Oct 19 2002 - 17:18:34 GMT-3
Yeah, it's absolutely right. I have done few lab scenarios and got the
following results:
(1): prim & sec IPs must belong to single area. (2):Neighbour adj. will
never be established on secondary networks. (3)The interesting thing if
you reverse the prim & sec addresses on one router, the adj. will be lost
resulting in no communication between the two ospf router on that
network. What i mean e.g,
R1#(int- e0/0) ip add 10.1.1.1/24
ip add 20.1.1.1/24 sec
R2#(int-e0/0) ip add 20.1.1.2/24
ip add 10.1.1.2/24
Then, there won't be any neighbor discover since it
always happens on the primary links, and this would
be simulated as two different subnet links so, no
communication at all.
-Muhammad Imran (CCIE-wanna be)
>From: LoizosCisco >Reply-To: LoizosCisco >To: Chris , chenyan , ccielab
>Subject: Re: ospf secondary >Date: Sat, 19 Oct 2002 12:51:28 -0700 (PDT)
> >Chris, > >You are right about the primary and secondary been in >the
same area. Check this link: >
>http://www.cisco.com/warp/customer/104/2.html#9.0 > > >--- Chris wrote:
> > I believe that if you do secondary addresses in OSPF > > they must be
in the > > same area as the primary. I am fairly certain about > > this
but cannot find the > > doc from Cisco where I read it. > > > > > > > >
----- Original Message ----- > > From: "LoizosCisco" > > To: "chenyan" ;
"ccielab" > > > > Sent: Saturday, October 19, 2002 2:07 PM > > Subject:
Re: ospf secondary > > > > > > > Chenyan, > > > > > > Is it possible to
post the config here so we can > > take > > > a look? If you will turn
off the hello > > advertisement > > > why don't you just remove the
network statement > > with > > > the secondary subnet from OSPF? What are
you > > trying to > > > accomplish? > > > > > > > > > > > > > > > > > >
--- chenyan wrote: > > > > hi,group > > > > > > > > only one phycial
ethernet interface with two ip > > add, > > > > one for main and the
other for secondary, both > > are > > > > configured as two sepreate
AREA, but there still > > > > mismatch area notification sent, so I want
to > > turn > > > > off the hello advertied by then secondary, HOW? > > >
> > > > > Thanks > > > > > > > > >
This archive was generated by hypermail 2.1.4 : Tue Nov 05 2002 - 08:35:51 GMT-3