EIGRP question ...

Something for the geeks out there and one for a little advice.

I am building a large network using an EIGRP core as a prelude to some research we are doing for the wider Cisco community. A simplified version of the topology is below.
























The network is full converged, there is no auto-summary deliberately applied on all instances of AS 99. Checking each instance, using show ip eigrp topology, all routers are passive and has sensible metrics for the FD and AD.

The four stubs of OSPF all redistribute into EIGRP and vice versa.

Now for the problem, with this fully converged network, it does not let me ping beyond one hop.

The following is the command output from Router B ...

ip dhcp excluded-address 99.0.3.1 9.0.3.10
!
ip dhcp pool B
 network 99.0.3.0 255.255.255.0
!
int fa0/1
 ip add 99.0.0.2 255.255.255.0
 description this points to RightCore
!
int fa0/0
 ip add 99.0.3.1 255.255.255.0
 description this points to LocalB
!
router eigrp 99
 no auto-summary
 network 99.0.0.0 0.0.0.255
 network 99.0.3.0 0.0.0.255
!
And this is output from LocalB ...

interface FastEthernet0/0
 ip address dhcp
 description this points to B
!
interface FastEthernet0/1
 ip address 3.0.0.1 255.255.255.0
 description this points to the PC
!
router eigrp 99
 redistribute ospf 1 metric 1500 0 255 255 1500
 network 99.0.3.0 0.0.0.255
 no auto-summary
!
router ospf 1
 log-adjacency-changes
 redistribute eigrp 99 subnets
 network 3.0.0.0 0.0.0.255 area 0
!
You can assume that all interfaces are up ... so why can I see everything via EIGRP and have a fully converged network yet unable to ping?

It is worth adding there is no traffic filtering, MD5 hashes or in fact anything clever, these are yet to be added.

Comments

  1. save the config on the inter protocol router and restart it.
    I have tested it and the redistribution then works correctly.
    I had thought it was due to DHCP but was wrong

    ReplyDelete
    Replies
    1. been through the restart process, DHCP works fine (tho have found a wee bug in PT) ... busy building a new VM to try out on a beta of PT

      Delete
  2. Sounds like there's no route back so I think the redistribution may not be working.

    What interface are you sourcing the ping from?

    Can you see the routes in the routing tables both ways? I guess you can see the ospf routes but can you see the eigrp routes from the stub or better yet a default route/ summarised route from the ospf router?

    Try the output of show ip route ospf

    ReplyDelete
  3. #solved, it was working, had to upgrade to v6 beta r40 from 5.3.3 of the simulator, everything was text book, is text book but sim alas (pffft)

    ReplyDelete

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