Should work, I have tested this. Do you see the route in your topology
table? Do you have any inbound filters on R1?

On Wed, Jul 1, 2009 at 12:26 AM, desmond Black <[email protected]> wrote:

>
> I think since Null0 is a garbage [but IOS softwarely correct] interface, it
> will adveritse the route to neigbour, but it will not install it for it has
> no valid [Practically] next-hop.
>
> ----- Original Message -----
> From: "Jayesh Karkhanis"
> To: [email protected]
> Subject: [OSL | CCIE_RS] Redistributing null route in EIGRP
> Date: Tue, 30 Jun 2009 23:53:32 -0400
>
> Hello All,
>
> I am trying to redistribute null route into eigrp. I see the route being
> sent and received but it's not being installed in routing table.
>
> Below is debug from R1 and R2 (R2 is redistributing). Any thoughts or
> inputs appreciated. Thankyou.
>
> *Mar  1 01:41:31.435: IP-EIGRP(Default-IP-Routing-Table:100): Processing
> incoming UPDATE packet
> *Mar  1 01:41:31.435: IP-EIGRP(Default-IP-Routing-Table:100): Int
> 1.0.0.0/8 M 2297856 - 1657856 640000 SM 128256 - 256 128000
> *Mar  1 01:41:31.459: IP-EIGRP(Default-IP-Routing-Table:100): 10.1.12.0/24- 
> do advertise out Serial1/0.21
> *Mar  1 01:41:31.459: IP-EIGRP(Default-IP-Routing-Table:100): 2.0.0.0/8 -
> do advertise out Serial1/0.21
> *Mar  1 01:41:31.463: IP-EIGRP(Default-IP-Routing-Table:100): Int
> 2.0.0.0/8 metric 128256 - 256 128000
> **Mar  1 01:41:31.463: IP-EIGRP(Default-IP-Routing-Table:100): 3.0.0.0/8 -
> do advertise out Serial1/0.21*
> *Mar  1 01:41:31.463: IP-EIGRP(Default-IP-Routing-Table:100): Ext
> 3.0.0.0/8 metric 6777856 - 1657856 5120000
> *Mar  1 01:41:31.463: IP-EIGRP(Default-IP-Routing-Table:100): 1.0.0.0/8 -
> do advertise out Serial1/0.21
> *Mar  1 01:41:31.659: IP-EIGRP(Default-IP-Routing-Table:100): Processing
> incoming QUERY packet
> *Mar  1 01:41:31.663: IP-EIGRP(Default-IP-Routing-Table:100): Int
> 10.0.0.0/8 M 4294967295 - 0 4294967295 SM 4294967295 - 0 4294967295
> *Mar  1 01:41:31.683: IP-EIGRP(Default-IP-Routing-Table:100): 10.0.0.0/8 -
> not in IP routing table
> *Mar  1 01:41:31.683: IP-EIGRP(Default-IP-Routing-Table:100): Int
> 10.0.0.0/8 metric 4294967295 - 0 4294967295
> R2(config-router)#
>
> R1(config-router)#
> *Mar  1 01:41:31.859: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 10.1.12.2 (Serial1/0.12) is resync: summary configured
> *Mar  1 01:41:31.867: IP-EIGRP(Default-IP-Routing-Table:100): 1.0.0.0/8 -
> do advertise out Serial1/0.12
> *Mar  1 01:41:31.871: IP-EIGRP(Default-IP-Routing-Table:100): Int
> 1.0.0.0/8 metric 128256 - 256 128000
> *Mar  1 01:41:31.871: IP-EIGRP(Default-IP-Routing-Table:100): 10.1.12.0/24- 
> do advertise out Serial1/0.12
> *Mar  1 01:41:31.871: IP-EIGRP(Default-IP-Routing-Table:100): 2.0.0.0/8 -
> do advertise out Serial1/0.12
> *Mar  1 01:41:32.111: IP-EIGRP(Default-IP-Routing-Table:100): Processing
> incoming UPDATE packet
> *Mar  1 01:41:32.111: IP-EIGRP(Default-IP-Routing-Table:100): Int
> 2.0.0.0/8 M 2297856 - 1657856 640000 SM 128256 - 256 128000
> **Mar  1 01:41:32.111: IP-EIGRP(Default-IP-Routing-Table:100): ExtS
> 3.0.0.0/8 M 7289856 - 1657856 5632000 SM 6777856 - 1657856 5120000*
> *Mar  1 01:41:32.127: IP-EIGRP(Default-IP-Routing-Table:100): 10.0.0.0/8 -
> do advertise out Serial1/0.12
> *Mar  1 01:41:32.127: IP-EIGRP(Default-IP-Routing-Table:100): Int
> 10.0.0.0/8 metric 4294967295 - 0 4294967295
> *Mar  1 01:41:32.307: IP-EIGRP(Default-IP-Routing-Table:100): Processing
> incoming REPLY packet
> *Mar  1 01:41:32.307: IP-EIGRP(Default-IP-Routing-Table:100): Int
> 10.0.0.0/8 M 4294967295 - 0 4294967295 SM 4294967295 - 0 4294967295
> R1(config-router)#
>
> R1#sh ip rou
> Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
>        D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
>        N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
>        E1 - OSPF external type 1, E2 - OSPF external type 2
>        i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS
> level-2
>        ia - IS-IS inter area, * - candidate default, U - per-user static
> route
>        o - ODR, P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> *C    1.0.0.0/8 is directly connected, Loopback0
> D    2.0.0.0/8 [90/2297856] via 10.1.12.2, 00:45:15, Serial1/0.12
>      10.0.0.0/24 is subnetted, 1 subnets
> C       10.1.12.0 is directly connected, Serial1/0.12
> R1#
> *
>
>
>
>
> Desmond Black,
> In Pursuit of CCIE!!
> India
>
>
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-- 
Bryan Bartik
CCIE #23707 (R&S), CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com

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