From: Haohong Lin (hhlin@xxxxxxxxxx)
Date: Tue Apr 10 2001 - 04:45:15 GMT-3
Hi, Gaspard,
I followed your advice and implement both of method as cisco cd suggestion.
the clause "default-infor org" work fine, but "net 0.0.0.0" had no function.
Why?
regards,
Haohong Lin
-----Original Message-----
From: Michel Gaspard [mailto:mgaspard@cisco.com]
Sent: 2001 04 09 23:32
To: ccielab@groupstudy.com; hhlin@szskzj.com
Subject: Re: CCBootCamp Question - Lab2 Section3 Task1
Lin,
Look in:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/np1_r
/1rprt1/1rbgp.htm#xtocid1108620
"
To allow the redistribution of network 0.0.0.0 into BGP, use the
default-information originate router configuration command. To disable this
function, use the no form of this command.
The same functionality will result from the network 0.0.0.0 command, using
the network router configuration command. <<<<<< mmmmmh, that stinks like a
CCIE question!! No NDA, just a wild guess......
"
I did the same setup, and until I entered that command nix. Then it come up
nicely.
So I understand that BGP will only advertise a defualt route:
- if it knows about one
- default-information originate" is present
> From nobody@groupstudy.com Mon Apr 9 03:52:34 2001
> From: "Haohong Lin" <hhlin@szskzj.com>
> To: "CCIELab" <ccielab@groupstudy.com>
> Subject: CCBootCamp Question - Lab2 Section3 Task1
> Date: Mon, 9 Apr 2001 09:39:20 +0800
> Sender: nobody@groupstudy.com
> Reply-To: "Haohong Lin" <hhlin@szskzj.com>
>
> Hi,
>
> When I redistribtue OSPF to BGP 3 having no route-map, I have
> no route entry of "0.0.0.0". In BootCamp's answer pages, there is
> route-map to filter the route '0.0.0.0', Is that necessary?
>
> This is the redistribution expression I used:
> router bgp 3
> redistribute ospf 20 metric 10 match internal external 1 external 2
>
> R6#sh ip ospf da
>
> OSPF Router with ID (12.2.1.1) (Process ID 20)
>
>
> Router Link States (Area 0)
>
> Link ID ADV Router Age Seq# Checksum Link count
> 12.2.1.1 12.2.1.1 1598 0x80000002 0xD25A 2
> 172.168.32.1 172.168.32.1 14 (DNA) 0x80000002 0x7F05 4
>
> Type-5 AS External Link States
>
> Link ID ADV Router Age Seq# Checksum Tag
> 0.0.0.0 12.2.1.1 1689 0x80000001 0xC7B4 20
> ^^^^^^^there is a 0.0.0.0 route entry^^^^^^^^^^^^^
> 77.1.1.0 172.168.32.1 54 (DNA) 0x80000001 0x41A3 0
> R6#
> R6#sh ip bgp
> BGP table version is 13, local router ID is 12.2.1.1
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *> 12.2.0.0/16 0.0.0.0 10 32768 ?
> *> 12.3.0.0/16 12.2.1.2 10 32768 ?
> *> 12.4.0.0/16 12.2.1.2 10 32768 ?
> *> 41.1.1.0/24 11.1.1.5 300 0 2 1 ?
> *> 44.1.1.0/24 11.1.1.5 300 0 2 1 i
> *> 77.1.1.0/24 12.2.1.2 10 32768 ?
> R6#
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