Re: Bgp summary

From: alsontra@hotmail.com
Date: Sun May 02 2004 - 02:40:03 GMT-3


I posted a working config a while back. Look through the archives.
Inject-map is supported on 2600's. It's a bit problematic but it works.

Here's a repost.

> Group,
>
> I'm using "IOS Version 12.2(15)T10" on a 2600 and injection maps are
>
> supported, despite the contradictory information on the DOC CD. See below:
>
> Config-
>
> R4(150.1.4.4) is sourcing 10.2.1.0 via the network command.
>
> R3#sh run | b bgp
>
> router bgp 200
>
> no synchronization
>
> bgp router-id 150.1.3.3
>
> bgp log-neighbor-changes
>
> bgp inject-map ORIGINATE exist-map LEARNED_PATH
>
> network 164.7.3.0 mask 255.255.255.0
>
> neighbor 150.1.4.4 remote-as 100
>
> neighbor 150.1.4.4 ebgp-multihop 255
>
> neighbor 150.1.4.4 update-source Loopback0
>
> neighbor 164.7.13.1 remote-as 300
>
> neighbor 164.7.23.2 remote-as 200
>
> neighbor 164.7.23.2 route-reflector-client
>
> no auto-summary
>
> !
>
> no ip http server
>
> ip classless
>
> !
>
> !
>
> !
>
> ip prefix-list ORIGINATED_ROUTES seq 5 permit 10.2.1.0/25
>
> ip prefix-list ORIGINATED_ROUTES seq 10 permit 10.2.1.128/25
>
> !
>
> ip prefix-list ROUTE seq 5 permit 10.2.1.0/24
>
> !
>
> ip prefix-list ROUTE_SOURCE seq 5 permit 150.1.4.4/32
>
> !
>
> !
>
> route-map LEARNED_PATH permit 10
>
> match ip address prefix-list ROUTE
>
> match ip route-source prefix-list ROUTE_SOURCE
>
> !
>
> route-map ORIGINATE permit 10
>
> set ip address prefix-list ORIGINATED_ROUTES
>
> !
>
> route-map CONN2EIGRP permit 10
>
> match interface Serial1/0.35 Serial1/0.34
>
> !
>
> !
>
> ****************OUTPUT*********************************
>
> R3#sh ip bgp
>
> BGP table version is 19, local router ID is 150.1.3.3
>
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
>
> internal,
>
> r RIB-failure, S Stale
>
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
>
> *> 10.2.1.0/25 150.1.4.4 0 ?
>
> *> 10.2.1.0/24 150.1.4.4 0 0 100 i
>
> *> 10.2.1.128/25 150.1.4.4 0 ?
>
> *> 28.119.16.0/24 150.1.4.4 0 100 54 i
>
> *> 28.119.17.0/24 150.1.4.4 0 100 54 i
>
> *> 112.0.0.0 150.1.4.4 0 100 54 50 60 i
>
> *> 113.0.0.0 150.1.4.4 0 100 54 50 60 i
>
> *> 114.0.0.0 150.1.4.4 0 100 54 i
>
> *> 115.0.0.0 150.1.4.4 0 100 54 i
>
> *> 116.0.0.0 150.1.4.4 0 100 54 i
>
> *> 117.0.0.0 150.1.4.4 0 100 54 i
>
> *> 118.0.0.0 150.1.4.4 0 100 54 i
>
> *> 119.0.0.0 150.1.4.4 0 100 54 i
>
> *> 164.7.3.0/24 0.0.0.0 0 32768 i
>
> R3#sh ip bgp injected-paths
>
> BGP table version is 19, local router ID is 150.1.3.3
>
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
>
> internal,
>
> r RIB-failure, S Stale
>
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
>
> *> 10.2.1.0/25 150.1.4.4 0 ?
>
> *> 10.2.1.128/25 150.1.4.4 0 ?
>
>
>
> Alsontra-
>
>
>
>
>
>
>
> ----- Original Message -----
> From: "NARAYAN" <ngawas@cisco.com>
> To: <alsontra@hotmail.com>; "'SANCHEZ-MONGE,ANTONIO (HP-France,ex2)'"
> <antonio.sanchez-monge@hp.com>; "'Brian McGahan'"
> <bmcgahan@internetworkexpert.com>; <ccielab@groupstudy.com>
> Sent: Saturday, May 01, 2004 5:55 PM
> Subject: RE: Bgp summary
>
>
> > ----------------------------------------- (on firestar)
> >
> > Tacsuns has scanned the file email-body and no virus was found.
> > ---------------------------------------------------------
> >
>
>
> --------------------------------------------------------------------------

--
> ----
>
>
> Hi
> Can u  please let me know how to inject  92.68.0.0/24  withot using
> network.agg-add,redi ?
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Narayan Gawas
> Sent: Tuesday, March 23, 2004 9:24 AM
> To: alsontra@hotmail.com; 'SANCHEZ-MONGE,ANTONIO (HP-France,ex2)'; 'Brian
> McGahan'; ccielab@groupstudy.com
> Subject: RE: Bgp summary
>
>
> ----------------------------------------- (on firestar)
>
> Tacsuns has scanned the file email-body and no virus was found.
> ---------------------------------------------------------
> Hi brian
>
> Can you  please let me know,how to inject  92.68.0.0/24  withot using
> network.agg-add,redi ?
>
>  FYI there *is* a way to inject 192.68.0.0/24 without using:
> >
> > 1. the network statement
> > 2. the aggregate-address statement
> > 3. redistribution
> >
>
>
> Regards
> Narayan
>
>   ------------------------------------------
>   NARAYAN GAWAS
>   Cisco Technical Assistance Center(CiscoTAC)
>    ngawas@cisco.com
> -------------------------------------------
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> alsontra@hotmail.com
> Sent: Tuesday, March 23, 2004 10:00 AM
> To: SANCHEZ-MONGE,ANTONIO (HP-France,ex2); 'Brian McGahan';
> ccielab@groupstudy.com
> Subject: Re: Bgp summary
>
>
> It did not work for me either. After doing a tiny bit of research, I
> concluded it was not supported
>
> <snip>
> The BGP Conditional Route Injection feature is supported by all platforms
in
> Cisco IOS Release 12.2(14)S that support BGP:
>
>   a.. Cisco 7200 series
>   b.. Cisco 7400 series
>   c.. Cisco 7500 series
> </snip>
>
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122
> t/122t4/ftbgpri.htm
>
> Alsontra-
>
> ----- Original Message -----
> From: "SANCHEZ-MONGE,ANTONIO (HP-France,ex2)"
<antonio.sanchez-monge@hp.com>
> To: "'Brian McGahan'" <bmcgahan@internetworkexpert.com>;
> <ccielab@groupstudy.com>
> Sent: Monday, March 22, 2004 2:39 PM
> Subject: RE: Bgp summary
>
>
> > Hi Brian,
> >
> > I have tried bgp inject-map functionality as per one of your labs and
> > did not succeed to get it working. I used the same config as in the
> > solutions guide. I have read previous posts in this list saying it is
> > not supported
> in
> > middle-low range routers. Mmm...
> >
> > Cheers,
> > Ato.
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > Of Brian McGahan
> > Sent: lunes, 22 de marzo de 2004 23:00
> > To: 'Narayan Gawas'; 'Packet Man'; EMoffat@fsci.com;
> ccielab@groupstudy.com
> > Subject: RE: Bgp summary
> >
> >
> > The only way that 192.68.0.0 will show up as "*> 192.68.0.0" in the
> > BGP table is if the network is 192.68.0.0/24.  The mask does not show
> > up
> in
> > the "show ip bgp" output if it is classful.  Otherwise the mask is
> included.
> > Therefore there are two possible ways to interpret this scenario:
> >
> > 1.  You are missing some key piece of the puzzle, and the question is
> > not asking for "*> 192.68.0.0" in the BGP table
> >
> > Or
> >
> > 2. 192.68.0.0/24 must be injected into the BGP table
> >
> > FYI there *is* a way to inject 192.68.0.0/24 without using:
> >
> > 1. the network statement
> > 2. the aggregate-address statement
> > 3. redistribution
> >
> > Any takers? :)
> >
> >
> > HTH,
> >
> > Brian McGahan, CCIE #8593
> > bmcgahan@internetworkexpert.com
> >
> > Internetwork Expert, Inc.
> > http://www.InternetworkExpert.com
> > Toll Free: 877-224-8987 x 705
> > Outside US: 775-826-4344 x 705
> >
> >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > > Of Narayan Gawas
> > > Sent: Monday, March 22, 2004 10:22 AM
> > > To: 'Packet Man'; EMoffat@fsci.com; ccielab@groupstudy.com
> > > Subject: RE: Bgp summary
> > >
> > > I am sorry ,my question was not that clear
> > >
> > > r1-->r2.----R6
> > > r1 send following route to R2
> > >
> > >  197.68.1.0/24,
> > > 197.68.2.0/24
> > > 197.68.3.0/24
> > > 197.68.0.0/19
> > >
> > > In R2,after summarization, In BGP table  we get following routes
> > >
> > >  *> 192.68.0.0/16
> > > *> 192.68.1.0
> > > *> 192.68.2.0
> > >
> > > Goal :
> > > Only 197.68.0.0 should be appear in Bgp table of R6--without /16 We
> > > cannot use summary command,suppres route map at R2
> > >
> > > i did following but it only work if we summarize route to /24 in r2
> > > bgp table But doest work if we summarize 197.68 into /16.
> > >
> > > ip prefix-list R3-OUT seq 5 permit 197.68.0.0/24 le 25 Router bgp 1
> > > Agg-add  197.68.0.0 255.255.255.0 neighbor 135.4.6.6 prefix-list
> > > R3-OUT out
> > >
> > >   ------------------------------------------
> > >
> > >   NARAYAN GAWAS
> > >   Cisco Technical Assistance Center(CiscoTAC)
> > >    ngawas@cisco.com
> > > -------------------------------------------
> > >
> > > -----Original Message-----
> > > From: Packet Man [mailto:ccie2b@hotmail.com]
> > > Sent: Monday, March 22, 2004 12:04 PM
> > > To: ngawas@cisco.com; EMoffat@fsci.com; ccielab@groupstudy.com
> > > Subject: RE: Bgp summary
> > >
> > >
> > > Assuming you have "no auto sum" under your router bgp config, what
> > > would happen if auto-sum were enabled?  Would that do the trick?
> > >
> > >
> > > >From: "Narayan Gawas" <ngawas@cisco.com>
> > > >Reply-To: "Narayan Gawas" <ngawas@cisco.com>
> > > >To: "'Moffat, Ed'" <EMoffat@fsci.com>, <ccielab@groupstudy.com>
> > > >Subject: RE: Bgp summary
> > > >Date: Mon, 22 Mar 2004 09:41:39 +0900
> > > >
> > > >----------------------------------------- (on firestar)
> > > >
> > > >Tacsuns has scanned the file email-body and no virus was found.
> > > >---------------------------------------------------------
> > > >That means to summarise these route ,I have to create  loopback
> > > >with 192.168.0.0 net ,mask  255.255.255.0 and advertise loopback
> > > >net into Bgp ? Am I right ?
> > > >
> > > >
> > > >   ------------------------------------------
> > > >   NARAYAN GAWAS
> > > >   Cisco Technical Assistance Center(CiscoTAC)
> > > >    ngawas@cisco.com
> > > >-------------------------------------------
> > > >
> > > >-----Original Message-----
> > > >From: Moffat, Ed [mailto:EMoffat@fsci.com]
> > > >Sent: Monday, March 22, 2004 9:33 AM
> > > >To: 'Narayan Gawas'; 'ccielab@groupstudy.com'
> > > >Subject: RE: Bgp summary
> > > >
> > > >
> > > >I believe that the only way you will not see the /16 is if the
> > > >192.168.0.0 address is actually at /24 address that is announced.
> > > >
> > > >-Ed-
> > > >
> > > >-----Original Message-----
> > > >From: Narayan Gawas [mailto:ngawas@cisco.com]
> > > >Sent: Sunday, March 21, 2004 4:18 PM
> > > >To: ccielab@groupstudy.com
> > > >Subject: Bgp summary
> > > >
> > > >Is there another way to annonce only a summary address (192.68.0.0
> > > >) from BGP table without using the smmary neither the summary
> > > >filter , summary-only ?
> > > >
> > > >AS ----- R1 ------ R2
> > > >R1 BGP Table after aggregate
> > > >*> 192.68.0.0/16
> > > >*> 192.68.1.0
> > > >*> 192.68.2.0
> > > >R2 BGP Table which is goal to this senario.
> > > >*> 192.68.0.0
> > > >R1'router must advertise by 192.68.0.0 except /16'mark Don't see
> > > >"/16" word in R2 and it must see "192.68.0.0" only. Don't see "S"
> > > >suppress mark in R1. Don't use summary-only command by R1.
> > > >
> > > >___________________________________________________________________
> > > >__
> > > >__
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