Silvia,
It is possible if you configure the loopback as a point to point
network.
e.g.
int lo0
ip ospf network point-to-point
ip address 172.16.1.1 255.255.255.0
router ospf 1
network 172.16.1.0 0.0.0.255 area 0
Requires IOS 11.3T or 12.0. Stops the loopback from being used
as the router ID though.
>From http://www.cisco.com/warp/public/104/9.html
Q: Why are loopbacks advertised as /32 host routes in OSPF?
A: Loopbacks are considered host routes in OSPF, and they're
advertised as /32. For more information, see section 9.1 of RFC
2328. In Cisco IOS ® version 11.3T and 12.0, if the ip ospf network
point-to-point command is configured under loopbacks, then OSPF
advertises the loopback subnet as the actual subnet configured
on loopbacks.
See "Advanced IP Network Design" Cisco Press for more details.
Hope this helps.
Regards
Pete S.
--- Original Message ---
"Adam Hickey" <[EMAIL PROTECTED]> Wrote on
Mon, 4 Dec 2000 07:06:19 -0800
------------------
Correct me if I am wrong, but I don't think you can advertise
a class C if
the address is assigned to the loopback. Because the router is
not aware of
any network, only that address. I believe you would have to assign
the ip to
an eth interface (or any other besides lo0) which would be known
to the
router as a network directly connected and thus able to be advertised.
Please correct this if it is incorrect.
Adam Hickey
[EMAIL PROTECTED]
----- Original Message -----
From: "Elaluf, Sylvia," <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, December 04, 2000 6:10 AM
Subject: OSPF question
> Hello everybody
>
> I need some help with the following:
>
> Given the following
>
> loopback 0
> ip address 10.10.10.1 255.255.255.0
>
> router ospf 1
> network 10.0.0.0 0.0.0.255 area 0
>
> sh ip route 10.10.10.1
> known via connected loopback 0
> distributed via ospf 1
> 10.10.10.1 255.255.255.255
>
> what I want is to Advertise the loopback interface as class
C and not
host
> specific route.
>
> distributed via ospf 1
> 10.10.10.1 255.255.255.0
>
> How do I do that?
>
> Silvia Elaluf-Calderwood
> [EMAIL PROTECTED]
>
> "Only two things are infinite, the universe and human stupidity,
and I'm
not
> sure about the former."
> - Albert Einstein
>
>
>
> _________________________________
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
-----
Sent using MailStart.com ( http://MailStart.Com/welcome.html )
The FREE way to access your mailbox via any web browser, anywhere!
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
