EIGRP .pkt help?

Hi, first off new here so don't know if this is the right place to post this.

Anyway, tomorrow is my skills assessment involving eigrp, so I'm practicing right now in Packet Tracer. I think I've set up everything correctly (obviously not..) but the eigrp information isn't propagating to the other routers. I still have to add a static route for the loopback int, but waiting on that since other stuff isn't working.

Can anyone please help me out?

I've uploaded the packet tracer file here: drop.io dvbelts

Thanks!

Find more posts tagged with

Free for TechExams community: Cybersecurity salary guide

Compare cert salaries and plan your next career move

Button

Comments

kryolla

What interfaces do you have running EIGRP
sh ip eigrp int

Do you have adjacencies with the neighbors
sh ip eigrp neigh

How many routers and what networks besides the directly connected links are you advertising?

xtqqtxxx

kryolla wrote: »

What interfaces do you have running EIGRP
sh ip eigrp int

Do you have adjacencies with the neighbors
sh ip eigrp neigh

How many routers and what networks besides the directly connected links are you advertising?

I have all interface running eigrp except the loopbacks.
And there's no adjacencies with neighbors. That's the problem I'm stuck at. When run show ip eigrp neighbors nothing comes up. Confused there.

EDIT: I think the problem is with the wildcard masks. Not completely sure when to use them. The practice sheet I have says "advertise the network along with a wildcard mask for the appropriate subnet." Does this mean to set up all eigrp routes with a wildcard mask? I think that's what I've done. Probably the problem. Still confused though..

xtqqtxxx

kryolla wrote: »

What interfaces do you have running EIGRP
sh ip eigrp int

Do you have adjacencies with the neighbors
sh ip eigrp neigh

How many routers and what networks besides the directly connected links are you advertising?

Here's what comes up from one of the routers when I run show ip eigrp int:

IP-EIGRP interfaces for process 1

                        Xmit Queue   Mean   Pacing Time   Multicast    Pending
Interface        Peers  Un/Reliable  SRTT   Un/Reliable   Flow Timer   Routes
Fa0/0              0        0/0      1236       0/10           0           0
Ser2/0             0        0/0      1236       0/10           0           0
Lo0                0        0/0      1236       0/10           0           0

And for neighbors:
IP-EIGRP neighbors for process 1

R2#

I don't know why they are not advertising. Puzzling.

jmc012

xtqqtxxx wrote: »
Here's what comes up from one of the routers when I run show ip eigrp int:
IP-EIGRP interfaces for process 1

                        Xmit Queue   Mean   Pacing Time   Multicast    Pending
Interface        Peers  Un/Reliable  SRTT   Un/Reliable   Flow Timer   Routes
Fa0/0              0        0/0      1236       0/10           0           0
Ser2/0             0        0/0      1236       0/10           0           0
Lo0                0        0/0      1236       0/10           0           0
And for neighbors:
IP-EIGRP neighbors for process 1

R2#

I don't know why they are not advertising. Puzzling.

Try a debug eigrp packets, it will tell you this :
R1#
EIGRP: recv packet with wrong subnet on Serial2/0
EIGRP: Sending HELLO on FastEthernet0/0
AS 1, Flags 0x0, Seq 1/0 idbQ 0/0 iidbQ un/rely 0/0
EIGRP: Sending HELLO on Serial2/0
AS 1, Flags 0x0, Seq 1/0 idbQ 0/0 iidbQ un/rely 0/0
EIGRP: recv packet with wrong subnet on Serial2/0

jmc012

jmc012 wrote: »

Try a debug eigrp packets, it will tell you this :
R1#
EIGRP: recv packet with wrong subnet on Serial2/0
EIGRP: Sending HELLO on FastEthernet0/0
AS 1, Flags 0x0, Seq 1/0 idbQ 0/0 iidbQ un/rely 0/0
EIGRP: Sending HELLO on Serial2/0
AS 1, Flags 0x0, Seq 1/0 idbQ 0/0 iidbQ un/rely 0/0
EIGRP: recv packet with wrong subnet on Serial2/0

Heres Router HQ:
Router#
EIGRP: recv packet with wrong subnet on Serial3/0
EIGRP: recv packet with wrong subnet on Serial2/0

Do you see where your going wrong?

luke_bibby

I didn't look at the file but have you made sure that:

1. All routers you expect to become neighbors are in the same subnet
2. Are all configured with the same as number in the router eigrp command
3. All the K values (metric weights) are the same on each router
4. If you have configured an authentication key chain, make sure the key values / send & receive lifetimes are the same

Do you have L2 connectivity? do the neighbors show up in a sh cdp nei command?

xtqqtxxx

Thanks for all the input!
I realized the mistake I made by not having the routers' serial connections under same subnets.
Now I see neighbors, etc.

I still have one more problem though:

I added a static default route on the HQ router to the loopback interface. I should be able to ping HQ's loopback0 from each host now, but it isn't working. Anyone have any ideas?

Here's my updated working .pkt: drop.io dvbelts

I feel so close to figuring this out, if anyone can please help me out with this last part, I'd greatly appreciate it!

Thanks.

EDIT: Just wanted to also add that every router can ping each other. Every host/pc can ping their own router, but can't ping other hosts/pcs or anything else. Hmmmmm.

networker050184

It looks like you are putting the buggy before the horse. My advice would be to go back and learn the fundamentals. People can give you the answers, but it would be much more beneficial for you to learn it rather then just have the answers handed to you.

xtqqtxxx

networker050184 wrote: »

It looks like you are putting the buggy before the horse. My advice would be to go back and learn the fundamentals. People can give you the answers, but it would be much more beneficial for you to learn it rather then just have the answers handed to you.

I know, you're right (btw, I like the buggy/horse thing..

).
I am going to go back and learn it again. But I'm trying to figure this specific problem out right now because tomorrow I'll be tested over this.
But you're right I should go catch up, just don't have enough time..

jmc012

xtqqtxxx wrote: »

Thanks for all the input!
I realized the mistake I made by not having the routers' serial connections under same subnets.
Now I see neighbors, etc.

I still have one more problem though:

I added a static default route on the HQ router to the loopback interface. I should be able to ping HQ's loopback0 from each host now, but it isn't working. Anyone have any ideas?

Here's my updated working .pkt: drop.io dvbelts

I feel so close to figuring this out, if anyone can please help me out with this last part, I'd greatly appreciate it!

Thanks.

EDIT: Just wanted to also add that every router can ping each other. Every host/pc can ping their own router, but can't ping other hosts/pcs or anything else. Hmmmmm.

You have your Gateway addresses on the hosts set to the subnet address instead of the router interface address.

xtqqtxxx

jmc012 wrote: »

You have your Gateway addresses on the hosts set to the subnet address instead of the router interface address.

Oh, wow. I am such an idiot.. lol
What was I thinking??
This fixed it all. THANKS A BUNCH!!!

jmc012

xtqqtxxx wrote: »

Oh, wow. I am such an idiot.. lol
What was I thinking??
This fixed it all. THANKS A BUNCH!!!

No problem, just keep troubleshooting your labs even if it takes hours. That's really the best way to learn.

xtqqtxxx

jmc012 wrote: »

No problem, just keep troubleshooting your labs even if it takes hours. That's really the best way to learn.

You know, believe it or not, I have been doing just that since I woke up this morning... So tired... hehe

jmc012

xtqqtxxx wrote: »

You know, believe it or not, I have been doing just that since I woke up this morning... So tired... hehe

I know what you mean, I still do that.

Some times you just need to sleep on it. That has worked for me many times. All of the sudden the answer comes to you. Good luck on your test.

By the way with Eigrp, you don't have to use a wildcard mask in the network statement. But I think most people do.