Expert Redistribution

36 Comments

1. I created this lab based on the INE article from Petr Lapukhov about redistribution. I recreated the lab only the IP addresses are different. If you are studying for CCIE this is an excellent lab, even if you are studying for CCNP and want to know exactly how redistribution works this is an excellent lab.

   If you have trouble make sure to read Petr’s articles:

   http://blog.ine.com/2008/02/09/understanding-redistribution-part-i/
   http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/
   http://blog.ine.com/2008/03/17/understanding-redistribution-part-iii/

   1. Thanks for the info

2. Hi William,

   I recreated this lab but used my own IP addressing scheme. Which task is not clear? Where you have to make sure you need to use the FastEthernet links instead of the Frame-Relay?

   Once you start redistribution you might have some ineffective routing where you don’t have the shortest path. That’s something to take care off and fix.

3. Thanks for the great lab and that article. But the IP in that article is different and it’s not clear enough. This makes the answer to the last part of this lab difficult to understand.

4. after i remove the network 1.0.0.0 from router baby doll routers sweetpea and rocket don’t remove the network from their routing table.
   does it make any sense?

5. Avi Harari
   this is what is meeans
   Babydoll
   no net 1.0.0.0
   redistribute connect

   This should work.

6. What a great lab! Was a little confused on how EIGRP356 was to see the 1.1.1.0/24 as there was no mention of redistributing between the EIGRP domains in te lab requirements. So I then read the articles by Petr Lapukhov. Learned way more than I expected! Definitely worth the time!

7. In order to achieve full connectivity on every device I had to redistribute EIGRP process 123 and 356 into each other on Router 3 (Rocket), otherwise Router 6 (BlueJones) doesn’t have a route to Router 1 (BabyDoll. I suppose this is because a local route can’t redistributed back into itself (On Router 3 EIGRP123->OSPF243->EIGRP356) or is there a better explanation?. Perhaps you should add that step to the instructions? Unless I was missing something…

8. @Rob I really like the articles that Petr wrote since it combines everything you need about redistribution on CCIE level. For CCNP it’s a bit overkill but for anyone that wants to know the ins and outs of redistribution this is awesome.

   @Barry You found the correct solution and your explanation is correct. I’m not sure if i’ll add it as a task. Without the task you had to think a bit and you’ll never forget that two-way redistribution isn’t going to work ;D If i add the task then people will just hammer in the commands without knowing why or how. If I record the video then i’ll show it for sure…good job! 8)

   1. Rene Please Upload Video for this ………………………. Please Sir

9. dear:

   kindly add video solution for this lab

10. @Barry / Rene – Are you sure about that ? As I see it R3 receives the 1.1.1.0 route via OSPF BUT it’s not added to the routing table as the same route is recieved via EIGRP (with a lower AD). As redistribution from OSPF to EIGRP on R3 only redistributes OSPF found in the _routing table_ it doesn’t matter that it actually has an OSPF route for the subnet.

    A solution could probably be to modify the administrative distance for EIGRP routes on R3 ?

11. I’ll see if I can record this one this week. It’s a tough lab and it’ll take some time…I’ll see if you are right then Uffe 8)

12. excellent lab. Just want to ask a few things.

    1. In the INE setup they use ACLs to match subnets for split horizon. I’ve used tags to do the same thing. No issues with that?
    2. To achieve the final requirement to use Fast Ethernets, I’ve just played with administrative distances. On R4 I said OSPF external is higher than RIP, on R5 I’ve said RIP is higher than EIGRP external. and this way R4 tries to use R5, unless R5 redistribution fails.

13. Hi Bal Birdy,

    I’m not entirely sure, I’ll answer your question once I’ve recorded the lab ;D

    Rene

14. With complex topologies like this, there are always multiple solutions.

    The biggest issue is R6 not learning a route to 1.1.1.1.
    Just like anybody else who posted here, I was not able to find a workaround other than to start redistributing between AS123 and AS356. This creates a best path via R3. However, there is a backup path from R6 to R1 via R5-R4 through the ospf domain. R6 will use this path after configuring a default route to Null0 on R5 which is redistributed in AS356.

    Probably I have been cheating a bit by incorporating all ethernet links on the path R2-R3-R5-R4 into ospf area0. ;D However, this is the superior solution when you want to ensure redundancy AND optimal path selection among these routers. Also, R5 is not redistributing any protocols.
    The other magic command is [b]distance ospf external 180[/b].8)

    Another thing to note is that we have to set the rip [b]default-metric 1[/b]. IMHO this is a bug which I have encountered in other IOS versions as well.
    All in all, the solution I worked out operates without any conditional redistribution or distance/metric setting via route maps.

    regards,
    Leo

    1. I thought I was gonna go crazy trying to get R6 to see EIGRP 123 routes, until I read these comments.

       I learned so much hunting for answers. I didn’t want to just "cheat" and redistribute 123 and 356 into each other on R3 🙂

15. I have just worked through this lab—sort of– in prep for the TSHOOT test. Now, I know I need to read the mentioned article, but I found that as I conducted the two-way redistribution on SweetPea/Rocket, that 1.1.1.1 and 6.6.6.6 showed in both BlueJones/BabyDoll respectively, but they could not ping each other.

    How can they learn the loopbacks, and yet not reach them?

    I have more questions, but I’ll just read from here.

    Thanks.

16. waiting for this one..

17. hi .. Rene plz make a video on it . it will be easy for us to understand that way ..

    thanks .

    Omer

18. Am I the only person to think of this solutioin?

    On Rocket I used a static route to 1.1.1.0 and then used redistribute static and redistribute connected in EIGRP 356 to fix the issues with BlueJones not being able to ping 1.1.1.0 and the 192.168.123.0 network.

    The lab specifically says redistribute EIGRP 123 between OSPF 234 and EIGRP 356 between OSPF 234. Since there is no mention of EIGRP 123 into EIGRP 356, I figured if you wanted us to do this redistribution then it would have been the instructions.

    Also, some of the redistribution says 2-way and others just say redistribution. I am assuming you mean 2-way for all routers mentioned.

19. Nice lab!

20. Hi to all,
    I have done everything from the above goal except last step and i have an issue that from router Swetapea, Rocket and Blondie i cannot ping router’s own address.
    e.g. i cannot ping from sweatpea 192.168.234.1 but i can ping 2.2.2.2

21. In response to Barry’s question why 1.1.1.0 is not redistributed into eigrp 356, I can live with the route not being able to go from 123>234?356 on R3 due to the local issue, but why then could it not be learned by ospf 234 on R2 then redist into eigrp 356 on R3?

22. Hi to all.. I think i have done this lab.
    I want to know, how to upload my topology here. I want to show you and ensure that is it right or something went wrong.

    Please reply.

23. I cannot do the last step is to make the fast ethernet interface to forward and use the serial as a backup. Could you help me?

    1. Hi stlourenco,

       think about this: Why would R2 use the S1/0 link to go to 7.7.7.7 instead of going through fast ethernet?

       7.7.7.7 is known via

       (a) O E2, AD 110

       (b) D EX, AD 170

       same prefix length, OSPF wins.

       If you want the packet to use fast ethernet, you would require the packet to go around to the other EIGRP AS, down to RIP. How I did this was to make OSPF unbelievable.
       The command under ospf process is something like:

       distance 190.

       Yes, I gave it such a bad AD, that for any route, if it is known via any other routing protocol, use it. AVOID OSPF AT ALL COSTS!

       Hence, the routes would not go through the serial link.

       Of course, you could use the backup interface command, but that would be senseless.

       1. Hi John, I just followed your advise on the last item. I changed AD on R1, R2, R3, R4. There seems to be a problem on my side because on R4 it still knows OSPF routes because is the only way it could, by the FR cloud.
          Please if you know whats my issue i will appreciate your advise.

          Thanks.

24. •Configure 2-way redistribution on router SweetPea and Rocket between EIGRP AS123 and OSPF.

    SweetPea#sh run | s router ospf
    router ospf 234
    log-adjacency-changes
    redistribute eigrp 123 metric-type 1 subnets route-map EIGRP>OSPF
    network 2.2.2.0 0.0.0.255 area 0
    network 192.168.234.0 0.0.0.255 area 0
    distribute-list prefix FILTER in

    SweetPea#sh run | s router eigrp
    router eigrp 123
    redistribute ospf 234 metric 10000 10 1 250 1500 route-map OSPF>EIGRP
    network 192.168.123.0
    no auto-summary
    SweetPea#

    =====

    Rocket#sh run | s router ospf
    router ospf 234
    log-adjacency-changes
    redistribute eigrp 123 metric-type 1 subnets route-map EIGRP>OSPF
    redistribute eigrp 356 metric-type 1 subnets
    network 3.3.3.0 0.0.0.255 area 0
    network 192.168.234.0 0.0.0.255 area 0
    distribute-list prefix FILTER in
    Rocket#

    Rocket#sh run | s router eigrp
    router eigrp 123
    redistribute eigrp 356 metric 1 1 1 1 1500
    redistribute ospf 234 metric 100000 1 1 255 1500 route-map OSPF>EIGRP
    network 192.168.123.0
    no auto-summary

    router eigrp 356
    redistribute eigrp 123 metric 1 1 1 1 1500
    redistribute ospf 234 metric 100000 1 255 255 1500
    network 192.168.35.0
    no auto-summary
    Rocket#

    •Remove the "network 1.0.0.0" command on router BabDoll and replace it by redistributing the loopback0 interface into EIGRP AS123.
    •Do a traceroute from router SweetPea and Rocket to 1.1.1.1, you notice packets are sent through the OSPF network. Ensure they take the most optimal route to the destination.

    1- On sweetpee and Rocket use the command distribute filter PREFIX in

    SweetPea#sh run | s router ospf
    router ospf 234
    log-adjacency-changes
    redistribute eigrp 123 metric-type 1 subnets route-map EIGRP>OSPF
    network 2.2.2.0 0.0.0.255 area 0
    network 192.168.234.0 0.0.0.255 area 0
    distribute-list prefix FILTER in
    SweetPea#

    =====

    Rocket#sh run | s router ospf
    router ospf 234
    log-adjacency-changes
    redistribute eigrp 123 metric-type 1 subnets route-map EIGRP>OSPF
    redistribute eigrp 356 metric-type 1 subnets
    network 3.3.3.0 0.0.0.255 area 0
    network 192.168.234.0 0.0.0.255 area 0
    distribute-list prefix FILTER in
    Rocket#

    •Ensure all traffic will be sent using the FastEthernet links. The Frame-Relay links should only be used as a backup when the FastEthernet links are down.

    1- use backup int command on blondie
    2- Default-information originate on Amber

    Blondie#sh run int s1/0
    Building configuration…

    Current configuration : 179 bytes
    !
    interface Serial1/0
    backup interface FastEthernet0/0
    ip address 192.168.234.4 255.255.255.0
    encapsulation frame-relay
    ip ospf network broadcast
    serial restart-delay 0
    end

    ===
    Amber#sh run | s router rip
    router rip
    version 2
    network 192.168.45.0
    default-information originate
    distance 171 192.168.45.4 0.0.0.0
    no auto-summary
    Amber#

    =======

    WiseMan#sh ip route
    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 192.168.45.5 to network 0.0.0.0

    C 192.168.45.0/24 is directly connected, FastEthernet0/0
    7.0.0.0/24 is subnetted, 1 subnets
    C 7.7.7.0 is directly connected, Loopback0
    R* 0.0.0.0/0 [120/1] via 192.168.45.5, 00:00:13, FastEthernet0/0
    WiseMan#

25. I did this:
    I created a route map in Babydoll for just redistribute loopback 0.
    [b]route-map LOOPBACK permit 10
    match ip address 1 [/b]
    [b]access-list 1 permit 1.1.1.0 0.0.0.255[/b]
    [b]router eigrp 123
    redistribute connected route-map LOOPBACK[/b]

    Then i chanched AD in Rocket and SweetPea and i got a excellent routing for fastethernet 0/0.

    Tha´s it.

26. So here is my solution:

    The only real magic is:
    #1 Redistribute EIGRP-EIGRP @ R3
    #2 Redistribute RIP and EIGRP @ R5
    #3 Set EIGRP distance to 90/95 on EIGRP routers, we always want to avoid OSPF
    #4 Set OSPF External to 180 (or something high) on OSPF routers
    #5 Set RIP distance to less than 110 on R5 to prefer RIP over OSPF internal (some loopbacks are internal to OSPF)
    #6 Set RIP distance to less than 95 for the 4.4.4.0 and 7.7.7.0 networks on R4 to prefer RIP over the EIGRP external redistributed routes. If you really want optimal routing add the single host 192.168.234.4 also…

    Full Solution:
    Put this route-map on routers R2-R3-R4-R5
    !
    route-map RIP-EIGRP123 deny 10
    match tag 120 123
    route-map RIP-EIGRP123 permit 20
    match tag 356
    set tag 356
    route-map RIP-EIGRP123 permit 30
    match tag 110
    set tag 110
    route-map RIP-EIGRP123 permit 40
    set tag 120
    !
    route-map RIP-EIGRP356 deny 10
    match tag 120 356
    route-map RIP-EIGRP356 permit 20
    match tag 123
    set tag 123
    route-map RIP-EIGRP356 permit 30
    match tag 110
    set tag 110
    route-map RIP-EIGRP356 permit 40
    set tag 120
    !
    route-map EIGRP356-RIP deny 10
    match tag 120 356
    route-map EIGRP356-RIP permit 20
    match tag 123
    set tag 123
    route-map EIGRP356-RIP permit 30
    match tag 110
    set tag 110
    route-map EIGRP356-RIP permit 40
    set tag 356
    !
    route-map EIGRP123-RIP deny 10
    match tag 120 123
    route-map EIGRP123-RIP permit 20
    match tag 356
    set tag 356
    route-map EIGRP123-RIP permit 30
    match tag 110
    set tag 110
    route-map EIGRP123-RIP permit 40
    set tag 123
    !
    route-map EIGRP356-EIGRP123 deny 10
    match tag 356 123
    route-map EIGRP356-EIGRP123 permit 20
    match tag 120
    set tag 120
    route-map EIGRP356-EIGRP123 permit 30
    match tag 110
    set tag 110
    route-map EIGRP356-EIGRP123 permit 40
    set tag 356
    !
    route-map EIGRP123-EIGRP356 deny 10
    match tag 356 123
    route-map EIGRP123-EIGRP356 permit 20
    match tag 120
    set tag 120
    route-map EIGRP123-EIGRP356 permit 30
    match tag 110
    set tag 110
    route-map EIGRP123-EIGRP356 permit 40
    set tag 123
    !
    route-map OSPF-EIGRP123 deny 10
    match tag 110 123
    route-map OSPF-EIGRP123 permit 20
    match tag 356
    set tag 356
    route-map OSPF-EIGRP123 permit 30
    match tag 120
    set tag 120
    route-map OSPF-EIGRP123 permit 40
    set tag 110
    !
    route-map OSPF-EIGRP356 deny 10
    match tag 110 356
    route-map OSPF-EIGRP356 permit 20
    match tag 123
    set tag 123
    route-map OSPF-EIGRP356 permit 30
    match tag 120
    set tag 120
    route-map OSPF-EIGRP356 permit 40
    set tag 110
    !
    route-map EIGRP356-OSPF deny 10
    match tag 110 356
    route-map EIGRP356-OSPF permit 20
    match tag 123
    set tag 123
    route-map EIGRP356-OSPF permit 30
    match tag 120
    set tag 120
    route-map EIGRP356-OSPF permit 40
    set tag 356
    !
    route-map EIGRP123-OSPF deny 10
    match tag 110 123
    route-map EIGRP123-OSPF permit 20
    match tag 356
    set tag 356
    route-map EIGRP123-OSPF permit 30
    match tag 120
    set tag 120
    route-map EIGRP123-OSPF permit 40
    set tag 123
    !
    route-map OSPF-RIP deny 10
    match tag 110 120
    route-map OSPF-RIP permit 20
    match tag 356
    set tag 356
    route-map OSPF-RIP permit 30
    match tag 123
    set tag 123
    route-map OSPF-RIP permit 40
    set tag 110
    !
    route-map RIP-OSPF deny 10
    match tag 110 120
    route-map RIP-OSPF permit 20
    match tag 356
    set tag 356
    route-map RIP-OSPF permit 30
    match tag 123
    set tag 123
    route-map RIP-OSPF permit 40
    set tag 120
    !

    That takes care of any looping routes.

    R2:
    router eigrp 123
    redistribute ospf 234 metric 10000 100 255 1 1500 route-map OSPF-EIGRP123
    network 192.168.123.0
    distance eigrp 90 95
    no auto-summary
    !
    router ospf 234
    log-adjacency-changes
    redistribute eigrp 123 subnets route-map EIGRP123-OSPF
    network 2.2.2.0 0.0.0.255 area 0
    network 192.168.234.0 0.0.0.255 area 0
    distance ospf external 180
    !

    R3:
    router eigrp 123
    redistribute eigrp 356 route-map EIGRP356-EIGRP123
    redistribute ospf 234 metric 10000 100 255 1 1500 route-map OSPF-EIGRP123
    network 192.168.123.0
    distance eigrp 90 95
    no auto-summary
    !
    router eigrp 356
    redistribute eigrp 123 route-map EIGRP123-EIGRP356
    redistribute ospf 234 metric 10000 100 255 1 1500 route-map OSPF-EIGRP356
    network 192.168.35.0
    distance eigrp 90 95
    no auto-summary
    !
    router ospf 234
    log-adjacency-changes
    redistribute eigrp 123 subnets route-map EIGRP123-OSPF
    redistribute eigrp 356 subnets route-map EIGRP356-OSPF
    network 3.3.3.0 0.0.0.255 area 0
    network 192.168.234.0 0.0.0.255 area 0
    distance ospf external 180

    R4:
    router ospf 234
    log-adjacency-changes
    redistribute rip subnets route-map RIP-OSPF
    network 4.4.4.0 0.0.0.255 area 0
    network 192.168.234.0 0.0.0.255 area 0
    distance ospf external 180
    !
    router rip
    version 2
    redistribute ospf 234 metric 5 route-map OSPF-RIP
    network 192.168.45.0
    distance 80
    no auto-summary

    R5:
    router eigrp 356
    redistribute rip metric 10000 100 255 1 1500 route-map RIP-EIGRP356
    network 5.0.0.0
    network 192.168.35.0
    no auto-summary
    !
    router rip
    version 2
    redistribute eigrp 356 metric 5 route-map EIGRP356-RIP
    network 192.168.45.0
    distance 80 0.0.0.0 255.255.255.255 47
    no auto-summary
    !
    access-list 47 permit 4.4.4.0
    access-list 47 permit 7.7.7.0
    !

    Done

27. [i]How can i change external Ad for eigrp’s specfic prefix ?[/i]

28. I think, I got the solution. Please check my configurations and tell me if anything wrong

    [b]sweatpea Configurations[/b]

    !
    !
    version 12.4
    service timestamps debug datetime msec
    service timestamps log datetime msec
    no service password-encryption
    !
    hostname SweetPea
    !
    boot-start-marker
    boot-end-marker
    !
    !
    no aaa new-model
    memory-size iomem 5
    !
    !
    ip cef
    no ip domain lookup
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    interface Loopback0
    ip address 2.2.2.2 255.255.255.0
    ip ospf network point-to-point
    !
    interface FastEthernet0/0
    ip address 192.168.123.2 255.255.255.0
    duplex auto
    speed auto
    !
    interface Serial1/0
    ip address 192.168.234.2 255.255.255.0
    encapsulation frame-relay
    ip ospf network broadcast
    serial restart-delay 0
    !
    interface Serial1/1
    no ip address
    shutdown
    serial restart-delay 0
    !
    interface Serial1/2
    no ip address
    shutdown
    serial restart-delay 0
    !
    interface Serial1/3
    no ip address
    shutdown
    serial restart-delay 0
    !
    router eigrp 123
    redistribute ospf 234 route-map OSPF_TO_EI123
    network 192.168.123.0
    default-metric 1500 100 0 1 1000
    no auto-summary
    !
    router ospf 234
    log-adjacency-changes
    redistribute eigrp 123 metric-type 1 subnets route-map EI123_TO_OSPF
    network 2.2.2.0 0.0.0.255 area 0
    network 192.168.234.0 0.0.0.255 area 0
    distance 171
    distance 171 0.0.0.0 255.255.255.255 1
    !
    no ip http server
    no ip http secure-server
    !
    !
    !
    access-list 1 permit 1.1.1.0 0.0.0.255
    !
    route-map OSPF_TO_EI123 deny 10
    match tag 100
    !
    route-map OSPF_TO_EI123 permit 20
    set tag 110
    !
    route-map EI123_TO_OSPF deny 10
    match tag 110
    !
    route-map EI123_TO_OSPF permit 20
    set tag 100
    !
    !
    !
    control-plane
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    line con 0
    exec-timeout 0 0
    logging synchronous
    line aux 0
    line vty 0 4
    login
    !
    !
    end

    [b]Rocket Configurations:[/b][size=large][/size]

    !
    !
    version 12.4
    service timestamps debug datetime msec
    service timestamps log datetime msec
    no service password-encryption
    !
    hostname Rocket
    !
    boot-start-marker
    boot-end-marker
    !
    !
    no aaa new-model
    memory-size iomem 5
    !
    !
    ip cef
    no ip domain lookup
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    interface Loopback0
    ip address 3.3.3.3 255.255.255.0
    ip ospf network point-to-point
    !
    interface FastEthernet0/0
    ip address 192.168.123.3 255.255.255.0
    duplex auto
    speed auto
    !
    interface FastEthernet1/0
    ip address 192.168.35.3 255.255.255.0
    duplex auto
    speed auto
    !
    interface Serial2/0
    ip address 192.168.234.3 255.255.255.0
    encapsulation frame-relay
    ip ospf network broadcast
    serial restart-delay 0
    !
    interface Serial2/1
    no ip address
    shutdown
    serial restart-delay 0
    !
    interface Serial2/2
    no ip address
    shutdown
    serial restart-delay 0
    !
    interface Serial2/3
    no ip address
    shutdown
    serial restart-delay 0
    !
    router eigrp 123
    redistribute eigrp 356
    redistribute ospf 234 route-map OSPF_TO_EI123
    network 192.168.123.0
    default-metric 1500 100 0 1 1000
    no auto-summary
    !
    router eigrp 356
    redistribute eigrp 123
    redistribute ospf 234 metric 1500 1 0 1 1000
    network 192.168.35.0
    no auto-summary
    !
    router ospf 234
    log-adjacency-changes
    redistribute eigrp 123 metric-type 1 subnets route-map EI123_TO_OSPF
    redistribute eigrp 356 subnets
    network 3.3.3.0 0.0.0.255 area 0
    network 192.168.234.0 0.0.0.255 area 0
    distance 171
    distance 171 0.0.0.0 255.255.255.255 1
    !
    no ip http server
    no ip http secure-server
    !
    !
    !
    access-list 1 permit 1.1.1.0 0.0.0.255
    !
    route-map OSPF_TO_EI123 deny 10
    match tag 120
    !
    route-map OSPF_TO_EI123 permit 20
    set tag 125
    !
    route-map EI123_TO_OSPF deny 10
    match tag 125
    !
    route-map EI123_TO_OSPF permit 20
    set tag 120
    !
    !
    !
    control-plane
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    line con 0
    exec-timeout 0 0
    logging synchronous
    line aux 0
    line vty 0 4
    login
    !
    !
    end

    [b]Blondie Config: [/b]

    !
    !
    version 12.4
    service timestamps debug datetime msec
    service timestamps log datetime msec
    no service password-encryption
    !
    hostname Blondie
    !
    boot-start-marker
    boot-end-marker
    !
    !
    no aaa new-model
    memory-size iomem 5
    !
    !
    ip cef
    no ip domain lookup
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    interface Loopback0
    ip address 4.4.4.4 255.255.255.0
    ip ospf network point-to-point
    !
    interface FastEthernet0/0
    ip address 192.168.45.4 255.255.255.0
    duplex auto
    speed auto
    !
    interface Serial1/0
    ip address 192.168.234.4 255.255.255.0
    encapsulation frame-relay
    ip ospf network broadcast
    serial restart-delay 0
    !
    interface Serial1/1
    no ip address
    shutdown
    serial restart-delay 0
    !
    interface Serial1/2
    no ip address
    shutdown
    serial restart-delay 0
    !
    interface Serial1/3
    no ip address
    shutdown
    serial restart-delay 0
    !
    router ospf 234
    log-adjacency-changes
    redistribute rip metric 50 metric-type 1 subnets route-map RIP_TO_OSPF
    network 4.4.4.0 0.0.0.255 area 0
    network 192.168.234.0 0.0.0.255 area 0
    distance 171
    !
    router rip
    version 2
    redistribute ospf 234 metric 8 route-map OSPF_TO_RIP
    network 192.168.45.0
    no auto-summary
    !
    no ip http server
    no ip http secure-server
    !
    !
    !
    !
    route-map OSPF_TO_RIP deny 10
    match tag 140
    !
    route-map OSPF_TO_RIP permit 20
    set tag 145
    !
    route-map RIP_TO_OSPF deny 10
    match tag 145
    !
    route-map RIP_TO_OSPF permit 20
    set tag 140
    !
    !
    !
    control-plane
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    line con 0
    exec-timeout 0 0
    logging synchronous
    line aux 0
    line vty 0 4
    login
    !
    !
    end

    [b]Amber configs:[/b]

    !
    !
    version 12.4
    service timestamps debug datetime msec
    service timestamps log datetime msec
    no service password-encryption
    !
    hostname Amber
    !
    boot-start-marker
    boot-end-marker
    !
    !
    no aaa new-model
    memory-size iomem 5
    !
    !
    ip cef
    no ip domain lookup
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    interface Loopback0
    ip address 5.5.5.5 255.255.255.0
    !
    interface FastEthernet0/0
    ip address 192.168.35.5 255.255.255.0
    duplex auto
    speed auto
    !
    interface FastEthernet1/0
    ip address 192.168.45.5 255.255.255.0
    duplex auto
    speed auto
    !
    router eigrp 356
    redistribute rip route-map RIP_TO_EI356
    network 5.0.0.0
    network 192.168.35.0
    default-metric 1500 1 0 1 100
    no auto-summary
    !
    router rip
    version 2
    redistribute eigrp 356 metric 5 route-map EI356_TO_RIP
    network 192.168.45.0
    distance 171 192.168.45.4 0.0.0.0 1
    no auto-summary
    !
    no ip http server
    no ip http secure-server
    !
    !
    !
    access-list 1 permit 1.1.1.0
    access-list 1 permit 2.2.2.0
    access-list 1 permit 3.3.3.0
    access-list 1 permit 192.168.123.0
    access-list 1 permit 192.168.234.0
    !
    route-map EI356_TO_RIP deny 10
    match tag 150
    !
    route-map EI356_TO_RIP permit 20
    set tag 155
    !
    route-map RIP_TO_EI356 deny 10
    match tag 155
    !
    route-map RIP_TO_EI356 permit 20
    set tag 150
    !
    !
    !
    control-plane
    !
    !
    !
    !
    !
    !
    !
    !
    !
    !
    line con 0
    exec-timeout 0 0
    logging synchronous
    line aux 0
    line vty 0 4
    login
    !
    !
    end

29. Hi guys, How about configuring a DISTRIBUTE-LIST on R2 to deny 1.0.0.0, next on R3 configuring AD 171 on the OSPF proccess?
    Thats what did. If its wrong please let me know, but it seems that its working the trace for the 1.1.1.1 correctly.

    Thanks.

30. Ugh…still giving this lab a few tries. I figured out that Rene purposely left out some redistribution commands in order to get full connectivity via the fast ethernet ports. Problem is, I was getting multiple route loops in various places that were becoming too confusing to plug up. I’m using route-map tags for everything.

    Most of the loops were being caused by unwanted traffic traveling through the ospf frame relay, so I think what I’m going to try next is raise the ospf inter-area AD to something like 190 BEFORE adding extra redistribution and route-map tags and hopefully that will cut down on the loops.

31. for the last task- not sure if im correct. Did the following-

    Did redistribution on router Amber (EIGRP 356 & RIP) an then used foll cmd

    router rip
    distance 171 0.0.0.0 255.255.255.255 1

    access-list 1 permit 4.4.4.4 0.0.0.255
    access-list 1 per 7.7.7.7 0.0.0.255
    access-list 1 per 192.168.45.0 0.0.0.255.

    Works perfectly fine with the desired result. Not sure if the method is correct?

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