Re: redistribution help

I feel a bit weak on redistribution, so this would be good practice.
Labbing this up now on GNS3 while sipping on a Coke on my beachside
condo balcony :)

1:56AM here in Thailand.

Humphrey

On Sun, Feb 26, 2012 at 1:22 AM, marc edwards <renorider_at_gmail.com> wrote:
> Hello all:
>
> I know there have been plenty of off topics running round. I have a pretty
> on topic question/confusion about redistribution. I have a very good
> fundamental understanding of protocols. I would also argue that I do
> understand basic redistribution and can perform it with ease. It is in some
> of the more complex environments with mutual redistribution and
> multiple redistribution into 3 igps. That really throws me. I have been
> working in a self built GNS3 lab that has enough IGP touch points to throw
> some nasty routing loops in the network.
>
> http://cisco-voyage.blogspot.com/
>
> Why don't we work on staying on topic and share thoughts about this. Look
> at the diagram. What would be required to have stalbe/full/reachbility to
> all interfaces in my little network if required to mutually redistribute
> all IGPs on R1 (EIGRP,RIP,OSPF), R2 (RIP,OSPF), R3 (OSPF,EIGRP) and also
> redistribute connected? Can you come up with appropriate filtering?
>
> Also, instead of just stating ' you can tag in R1' etc. lets see
> configurations. I have this running in GNS3. Could open a webex all weekend
> and we can do what this group is intended for... CCIE Lab study :)
>
> Regards,
>
> Marc
> marc edwards
> 10:04 AM (17 minutes ago)
> to Cisco
> So I have been starting to redistribute and now seeing this on R1:
> *Mar 4 12:35:42.435: RT: NET-RED 172.20.106.0/24
> *Mar 4 12:35:42.439: RT: add 6.6.6.0/24 via 172.20.136.6, eigrp metric
> [170/2297856]
> *Mar 4 12:35:42.439: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:35:42.439: RT: add 172.20.106.0/24 via 172.20.136.6, eigrp
> metric [170/2297856]
> *Mar 4 12:35:42.439: RT: NET-RED 172.20.106.0/24
> *Mar 4 12:35:47.387: RT: closer admin distance for 6.6.6.0, flushing 1
> routes
> *Mar 4 12:35:47.391: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:35:47.395: RT: add 6.6.6.0/24 via 172.20.124.2, rip metric
> [120/8]
> *Mar 4 12:35:47.399: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:35:47.403: RT: closer admin distance for 172.20.106.0, flushing
> 1 routes
> *Mar 4 12:35:47.407: RT: NET-RED 172.20.106.0/24
> *Mar 4 12:35:47.407: RT: add 172.20.106.0/24 via 172.20.124.2, rip metric
> [120/8]
> *Mar 4 12:35:47.411: RT: NET-RED 172.20.106.0/24
> *Mar 4 12:35:52.455: RT: del 6.6.6.0/24 via 172.20.124.2, rip metric
> [120/8]
> *Mar 4 12:35:52.459: RT: delete subnet route to 6.6.6.0/24
> *Mar 4 12:35:52.463: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:35:52.467: RT: delete network route to 6.0.0.0
> *Mar 4 12:35:52.467: RT: NET-RED 6.0.0.0/8
> *Mar 4 12:35:52.475: RT: del 172.20.106.0/24 via 172.20.124.2, rip metric
> [120/8]
> *Mar 4 12:35:52.475: RT: delete subnet route to 172.20.106.0/24
>
> This on R2
>
> r2#debug ip routing
> IP routing debugging is on
> r2#
> *Mar 4 12:34:36.047: RT: add 6.6.6.0/24 via 172.20.123.1, ospf metric
> [110/20]
> *Mar 4 12:34:36.051: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:34:36.151: RT: add 172.20.106.0/24 via 172.20.123.1, ospf metric
> [110/20]
> *Mar 4 12:34:36.151: RT: NET-RED 172.20.106.0/24
> *Mar 4 12:34:41.067: RT: del 6.6.6.0/24 via 172.20.123.1, ospf metric
> [110/20]
> *Mar 4 12:34:41.071: RT: delete subnet route to 6.6.6.0/24
> *Mar 4 12:34:41.075: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:34:41.079: RT: delete network route to 6.0.0.0
> *Mar 4 12:34:41.079: RT: NET-RED 6.0.0.0/8
> *Mar 4 12:34:41.099: RT: del 172.20.106.0/24 via 172.20.123.1, ospf metric
> [110/20]
> *Mar 4 12:34:41.103: RT: delete subnet route to 172.20.106.0/24
> *Mar 4 12:34:41.103: RT: NET-RED 172.20.106.0/24
> *Mar 4 12:34:46.051: RT: add 6.6.6.0/24 via 172.20.123.1, ospf metric
> [110/20]
> *Mar 4 12:34:46.055: RT: NET-RED 6.6.6.0/24
>
> r3#debug ip routing
> IP routing debugging is on
> r3#
> *Mar 4 12:33:10.451: RT: del 6.6.6.0/24 via 172.20.123.1, ospf metric
> [110/20]
> *Mar 4 12:33:10.455: RT: delete subnet route to 6.6.6.0/24
> *Mar 4 12:33:10.455: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:33:10.459: RT: delete network route to 6.0.0.0
> *Mar 4 12:33:10.463: RT: NET-RED 6.0.0.0/8
> *Mar 4 12:33:10.479: RT: add 6.6.6.0/24 via 172.20.136.6, eigrp metric
> [170/2297856]
> *Mar 4 12:33:10.483: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:33:10.591: RT: del 172.20.106.0/24 via 172.20.123.1, ospf metric
> [110/20]
> *Mar 4 12:33:10.591: RT: delete subnet route to 172.20.106.0/24
> *Mar 4 12:33:10.591: RT: NET-RED 172.20.106.0/24
> *Mar 4 12:33:10.591: RT: add 172.20.106.0/24 via 172.20.136.6, eigrp
> metric [170/2297856]
> *Mar 4 12:33:10.591: RT: NET-RED 172.20.106.0/24
> *Mar 4 12:33:15.587: RT: closer admin distance for 6.6.6.0, flushing 1
> routes
> *Mar 4 12:33:15.591: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:33:15.595: RT: add 6.6.6.0/24 via 172.20.123.1, ospf metric
> [110/20]
>
> R4:
>
> *Mar 4 12:34:54.819: RT: del 6.6.6.0/24 via 172.20.124.2, rip metric
> [120/8]
> *Mar 4 12:34:54.823: RT: delete subnet route to 6.6.6.0/24
> *Mar 4 12:34:54.823: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:34:54.827: RT: delete network route to 6.0.0.0
> *Mar 4 12:34:54.827: RT: NET-RED 6.0.0.0/8
> *Mar 4 12:34:54.831: RT: del 172.20.106.0/24 via 172.20.124.2, rip metric
> [120/8]
> *Mar 4 12:34:54.835: RT: delete subnet route to 172.20.106.0/24
> *Mar 4 12:34:54.839: RT: NET-RED 172.20.106.0/24
> *Mar 4 12:34:59.823: RT: add 6.6.6.0/24 via 172.20.124.2, rip metric
> [120/8]
> *Mar 4 12:34:59.827: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:34:59.831: RT: add 172.20.106.0/24 via 172.20.124.2, rip metric
> [120/8]
> *Mar 4 12:34:59.835: RT: NET-RED 172.20.106.0/24
> *Mar 4 12:35:04.807: RT: del 6.6.6.0/24 via 172.20.124.2, rip metric
> [120/8]
> *Mar 4 12:35:04.811: RT: delete subnet route to 6.6.6.0/24
> *Mar 4 12:35:04.811: RT: NET-RED 6.6.6.0/24
> *Mar 4 12:35:04.815: RT: delete network route to 6.0.0.0
> *Mar 4 12:35:04.815: RT: NET-RED 6.0.0.0/8
> *Mar 4 12:35:04.819: RT: del 172.20.106.0/24 via 172.20.124.2, rip metric
> [120/8]
> *Mar 4 12:35:04.823: RT: delete subnet route to 172.20.106.0/24
> *Mar 4 12:35:04.827: RT: NET-RED 172.20.106.0/24
>
> R1 config
>
> !
> hostname r1
> !
> boot-start-marker
> boot-end-marker
> !
> !
> no aaa new-model
> memory-size iomem 5
> ip cef
> !
> !
> !
> !
> no ip domain lookup
> !
> multilink bundle-name authenticated
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> archive
> log config
> hidekeys
> !
> !
> !
> !
> !
> !
> !
> !
> interface FastEthernet0/0
> ip address 172.20.124.1 255.255.255.0
> duplex auto
> speed auto
> !
> interface Serial0/0
> ip address 172.20.136.1 255.255.255.0
> encapsulation frame-relay
> clock rate 2000000
> frame-relay map ip 172.20.136.1 106
> frame-relay map ip 172.20.136.3 106
> frame-relay map ip 172.20.136.6 106 broadcast
> no frame-relay inverse-arp
> frame-relay lmi-type ansi
> !
> interface FastEthernet0/1
> ip address 172.20.123.1 255.255.255.0
> duplex auto
> speed auto
> !
> interface Serial0/1
> no ip address
> clock rate 2000000
> !
> interface Serial0/2
> no ip address
> shutdown
> clock rate 2000000
> !
> router eigrp 100
> redistribute rip metric 1 1 1 1 1
> network 172.20.136.0 0.0.0.255
> no auto-summary
> !
> router ospf 1
> log-adjacency-changes
> redistribute eigrp 100 subnets
> redistribute rip
> network 172.20.123.0 0.0.0.255 area 0
> !
> router rip
> version 2
> passive-interface default
> no passive-interface FastEthernet0/0
> network 172.20.0.0
> distribute-list rip_learned out
> no auto-summary
> !
> ip forward-protocol nd
> !
> !
> ip http server
> no ip http secure-server
> !
> ip access-list standard rip->eigrp
> permit 4.4.4.0
> permit 172.20.124.0
> permit 172.20.104.0
> ip access-list standard rip_learned
> permit 4.4.4.0
> permit 172.20.124.0
> permit 172.20.104.0
> !
> !
> !
> !
> !
> !
> !
> control-plane
> !
> !
> !
> !
> !
> !
> !
> !
> !
> alias exec ship sh ip int brie | ex una
> alias exec shirt sh ip route
> !
> line con 0
> line aux 0
> line vty 0 4
> !
> !
> end
>
> R2 Config
>
> hostname r2
> !
> boot-start-marker
> boot-end-marker
> !
> !
> no aaa new-model
> memory-size iomem 5
> ip cef
> !
> !
> !
> !
> no ip domain lookup
> !
> multilink bundle-name authenticated
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> archive
> log config
> hidekeys
> !
> !
> !
> !
> !
> !
> !
> !
> interface FastEthernet0/0
> ip address 172.20.124.2 255.255.255.0
> duplex auto
> speed auto
> !
> interface Serial0/0
> no ip address
> encapsulation frame-relay IETF
> shutdown
> clock rate 2000000
> frame-relay lmi-type ansi
> !
> interface FastEthernet0/1
> ip address 172.20.123.2 255.255.255.0
> duplex auto
> speed auto
> !
> interface Serial0/1
> no ip address
> clock rate 2000000
> !
> interface Serial0/2
> no ip address
> shutdown
> clock rate 2000000
> !
> interface Serial0/3
> no ip address
> shutdown
> clock rate 2000000
> !
> router ospf 1
> log-adjacency-changes
> redistribute rip subnets
> network 172.20.123.0 0.0.0.255 area 0
> !
> router rip
> version 2
> redistribute ospf 1 metric 8
> passive-interface default
> no passive-interface FastEthernet0/0
> network 172.20.0.0
> no auto-summary
> !
> ip forward-protocol nd
> !
> !
> ip http server
> no ip http secure-server
> !
> ip access-list standard ospf_routes
> permit 172.20.123.0
> ip access-list standard rip_routes
> permit 4.4.4.0
> permit 172.20.124.0
> permit 172.20.104.0
> !
> !
> !
> !
> !
> !
> !
> control-plane
> !
> !
> !
> !
> !
> !
> !
> !
> !
> alias exec ship sh ip int brie | ex una
> alias exec shirt sh ip route
> !
> line con 0
> exec-timeout 0 0
> line aux 0
> line vty 0 4
> !
> !
> end
>
> R3 Config
>
> !
> hostname r3
> !
> boot-start-marker
> boot-end-marker
> !
> !
> no aaa new-model
> memory-size iomem 5
> ip cef
> !
> !
> !
> !
> no ip domain lookup
> !
> multilink bundle-name authenticated
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> archive
> log config
> hidekeys
> !
> !
> !
> !
> !
> !
> !
> !
> interface Loopback0
> ip address 172.20.103.3 255.255.255.0
> !
> interface Loopback1
> ip address 3.3.3.3 255.255.255.0
> !
> interface FastEthernet0/0
> no ip address
> duplex auto
> speed auto
> !
> interface Serial0/0
> ip address 172.20.136.3 255.255.255.0
> encapsulation frame-relay
> clock rate 2000000
> frame-relay map ip 172.20.136.3 306
> frame-relay map ip 172.20.136.1 306
> frame-relay map ip 172.20.136.6 306 broadcast
> no frame-relay inverse-arp
> frame-relay lmi-type ansi
> !
> interface FastEthernet0/1
> ip address 172.20.123.3 255.255.255.0
> duplex auto
> speed auto
> !
> interface Serial0/1
> no ip address
> clock rate 2000000
> !
> interface Serial0/2
> no ip address
> shutdown
> clock rate 2000000
> !
> interface Serial0/3
> no ip address
> shutdown
> clock rate 2000000
> !
> router eigrp 100
> network 172.20.136.0 0.0.0.255
> no auto-summary
> !
> router ospf 1
> log-adjacency-changes
> redistribute connected subnets route-map connected->ospf
> network 172.20.123.0 0.0.0.255 area 0
> !
> ip forward-protocol nd
> !
> !
> ip http server
> no ip http secure-server
> !
> !
> !
> !
> route-map connected->ospf permit 10
> match interface Loopback0 Loopback1
> !
> !
> !
> !
> control-plane
> !
> !
> !
> !
> !
> !
> !
> !
> !
> alias exec ship sh ip int brie | ex una
> alias exec shirt sh ip route
> !
> line con 0
> exec-timeout 0 0
> line aux 0
> line vty 0 4
> !
> !
> end
>
> R4 config
>
> !
> hostname r4
> !
> boot-start-marker
> boot-end-marker
> !
> !
> no aaa new-model
> memory-size iomem 5
> ip cef
> !
> !
> !
> !
> no ip domain lookup
> !
> multilink bundle-name authenticated
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> archive
> log config
> hidekeys
> !
> !
> !
> !
> !
> !
> !
> !
> interface Loopback0
> ip address 172.20.104.4 255.255.255.0
> !
> interface Loopback1
> ip address 4.4.4.4 255.255.255.0
> !
> interface FastEthernet0/0
> ip address 172.20.124.4 255.255.255.0
> duplex auto
> speed auto
> !
> interface Serial0/0
> no ip address
> encapsulation frame-relay IETF
> shutdown
> clock rate 2000000
> frame-relay lmi-type ansi
> !
> interface FastEthernet0/1
> no ip address
> duplex auto
> speed auto
> !
> interface Serial0/1
> no ip address
> clock rate 2000000
> !
> interface Serial0/2
> no ip address
> shutdown
> clock rate 2000000
> !
> interface Serial0/3
> no ip address
> shutdown
> clock rate 2000000
> !
> router rip
> version 2
> redistribute connected metric 3
> passive-interface default
> no passive-interface FastEthernet0/0
> network 172.20.0.0
> no auto-summary
> !
> ip forward-protocol nd
> !
> !
> ip http server
> no ip http secure-server
> !
> !
> !
> !
> !
> !
> !
> control-plane
> !
> !
> !
> !
> !
> !
> !
> !
> !
> alias exec ship sh ip int brie | ex una
> alias exec shirt sh ip route
> !
> line con 0
> line aux 0
> line vty 0 4
> !
> !
> end
>
> R6 Config
>
> hostname r6
> !
> boot-start-marker
> boot-end-marker
> !
> !
> no aaa new-model
> memory-size iomem 5
> ip cef
> !
> !
> !
> !
> no ip domain lookup
> !
> multilink bundle-name authenticated
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> archive
> log config
> hidekeys
> !
> !
> !
> !
> !
> !
> !
> !
> interface Loopback0
> ip address 172.20.106.6 255.255.255.0
> !
> interface Loopback1
> ip address 6.6.6.6 255.255.255.0
> !
> interface FastEthernet0/0
> no ip address
> duplex auto
> speed auto
> !
> interface Serial0/0
> ip address 172.20.136.6 255.255.255.0
> encapsulation frame-relay
> no ip split-horizon eigrp 100
> clock rate 2000000
> frame-relay map ip 172.20.136.6 601
> frame-relay map ip 172.20.136.1 601 broadcast
> frame-relay map ip 172.20.136.3 603 broadcast
> no frame-relay inverse-arp
> frame-relay lmi-type ansi
> !
> interface FastEthernet0/1
> no ip address
> duplex auto
> speed auto
> !
> interface Serial0/1
> no ip address
> clock rate 2000000
> !
> router eigrp 100
> redistribute connected route-map connected->eigrp
> network 172.20.136.0 0.0.0.255
> no auto-summary
> !
> ip forward-protocol nd
> !
> !
> ip http server
> no ip http secure-server
> !
> !
> !
> !
> route-map connected->eigrp permit 10
> match interface Loopback0 Loopback1
> !
> route-map tag-connected-6 permit 10
> match interface Loopback0 Loopback1
> set tag 6
> !
> !
> !
> !
> control-plane
> !
> !
> !
> !
> !
> !
> !
> !
> !
> alias exec ship sh ip int brie | ex una
> alias exec shirt sh ip route
> !
> line con 0
> line aux 0
> line vty 0 4
> !
> !
> end
>
>
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-- 
Humphrey Cheung, CISSP #365719, CCNP, CCDP, CCIP
@humphreycheung
www.warjumper.com
www.routergods.com
http://www.youtube.com/routergods
Blogs and organic groups at http://www.ccie.net