[28842] in North American Network Operators' Group
Re[2]: Class B address routing
daemon@ATHENA.MIT.EDU (Kenji Anzai)
Thu May 18 19:53:10 2000
Date: Thu, 18 May 2000 16:50:15 -0700
From: Kenji Anzai <kenji@itochu.net>
To: Todd Romero <todd@routeflap.net>
Cc: nanog@merit.edu
In-Reply-To: <Pine.LNX.4.04.10005181926170.25563-100000@ns.routeflap.net>
Message-Id: <392481B73A9.B9A8KENJI@smtp.itochu.net>
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-2022-JP
Content-Transfer-Encoding: 7bit
Errors-To: owner-nanog-outgoing@merit.edu
Hi, All.
Thanks to Todd & All of you helped us.
We are really appreciated your help and suggestions.
I think that we can do this now.
Thanks to all again.
Regards,
Kenji Anzai
On Thu, 18 May 2000 19:33:54 -0400 (EDT)
Todd Romero <todd@routeflap.net> wrote:
>
> easily done..redistribute static into bgp with a route map. one /16 static
> and one /17 static pointing to Null0. the more specific will override the
> /16 always even tho its still there.
>
>
> router bgp xxxx
> redistribute static route-map static-to-bgp
> !
> ip route x.x.x.x 255.255.0.0 Null0 254
> ip route x.x.x.x 255.255.128.0 Null0 254
> !
> access-list 10 permit x.x.x.x 0.0.255.255
> access-list 10 permit x.x.x.x 0.127.255.255
> !
> route-map static-to-bgp permit 10
> match ip address 10
> !
>
>
> the only difference at each pop.. your /17 will be different in the static
> and ACL.
>
>
> On Thu, 18 May 2000, Kenji Anzai wrote:
>
> >
> > Hi, All.
> >
> > Thanks for all your replay to help us out.
> > They were really helpful.
> >
> > However, let me add some mor info for this question.
> >
> > 1. We have 2 routers at each POP, and own AS number.
> > 2. The routers use EBGP, and use IBGP between the routers at each POP
> > (not between POP).
> > 3. 2 POP are located at different location.
> > 4. We use same data center company's data center, so our network is
> > under the company's network.
> > 5. The data center won't aggrigate our netowrk as /16.
> >
> > After I read all your response, How could we annouce /16 and /17 from
> > the same router using BGP ?
> >
> > Regards,
> >
> > Kenji
> >
> >
> > On Thu, 18 May 2000 14:04:15 -0400
> > Kenji Anzai <kenji@itochu.net> wrote:
> >
> > >
> > > Hi, All.
> > >
> > > I'm having problem with our class B address. Last month, we tested our class B address. We announce the address as 2 x /17 from 2 different POP under the same ISP's data center. However, some ISP do NOT accept our route since the address belongs to traditional Class B address, and they told me that they only accept if we announce it as /16. (They filtered out our route…..)
> > >
> > > I talked to some people, they suggested me that we need to announce the block as /16 from both POP, even though we only like to announce /17 from each POP (Front /17 from one POP, the other /17 from another POP.).
> > >
> > > How could we do so ? Please help us.
> > >
> > > |--------- |
> > > | POP A |
> > > | /17 |------|
> > > |----------| | |--------|
> > > |-----| ISP C |-- Internet---X----ISP D
> > > | ---------| | |--------| Filtered out here…
> > > | POP B |------|
> > > | /17 |
> > > -----------
> > >
> > > Regards,
> > >
> > > Kenji Anzai
> > >
> > >
> > >
> >
> >
> > ITIの安齋です。
> > お世話になっております。
> >
> >
> > ***携帯電話の番号が変わりました***
> >
> > ***************************************
> >
> > Kenji Anzai
> >
> > Network Engineer
> >
> > Engineering Department
> > Network Operation Group
> >
> > Itochu Technology, Inc.
> > 3100 Patrick Henry Drive
> > Santa Clara, CA 94504
> >
> > Tel: (408) 653-2817 (Direct)
> > Fax: (408) 727-4619
> > Cellular: (408) 910-4170
> > Email: kenji@itochu.net
> > Pager:1-888-830-3638
> > kenji_pager@itochu.net
> > (English Only)
> > ***************************************
> >
>
>
ITIの安齋です。
お世話になっております。
***携帯電話の番号が変わりました***
***************************************
Kenji Anzai
Network Engineer
Engineering Department
Network Operation Group
Itochu Technology, Inc.
3100 Patrick Henry Drive
Santa Clara, CA 94504
Tel: (408) 653-2817 (Direct)
Fax: (408) 727-4619
Cellular: (408) 910-4170
Email: kenji@itochu.net
Pager:1-888-830-3638
kenji_pager@itochu.net
(English Only)
***************************************
