Solved

Cisco 2820 routing debug

Posted on 2014-03-27
5
646 Views
Last Modified: 2014-04-06
I have a 2820 router connected to a 3550 switch. I have a server connected to switchport on the 3550 (vlan 342).

-I can ping the router gateway 10.2.42.254 from the server.
-I can also ping another interface on the router (vlan 132) 172.16.132.254.
-I can ping the 10.2.42.253 interface on the switch.
-I can NOT ping the 172.16.132.77 interface on the switch or anything on the (vlan 132) connected to that switch.

Layer 2 is working all the way through since I can ping anything on the (vlan 132) 172.16.132.0/24 network from the router and the switch.

I removed all the ACL's, still an issue. VLAN's are configured and it works on L2.

Switch: 132  VLAN0132                         active
            342  VLAN0342                         active
ECLUB-3550-Switch.txt
ECLUB-2800-RTR.txt
0
Comment
Question by:lconnell
5 Comments
 
LVL 45

Assisted Solution

by:Craig Beck
Craig Beck earned 167 total points
ID: 39961116
I think you're trying to do something you don't need to do?

You're using (or trying/wanting to use) the 3550 as a layer-3 switch here, but I don't see why?  Your 2800 is doing the routing for your VLANs so why do you want more than one IP address on the 3550?  A management IP should be all you need.

I can see why you can't get to the IP address on the switch though - there's no default route on the switch.  You have a default gateway on the switch but that does a slightly different thing.

If you clear up what you're trying to achieve by adding routing to the 3550 that might fill in the blanks for me :-)
0
 
LVL 26

Assisted Solution

by:Soulja
Soulja earned 166 total points
ID: 39962137
Please show the entire configs, especially if you don't know what the issue is. Based on the partial config of the switch, you have it in layer 2 mode. You have the default gateway command in there which is used for Layer 2 mode. In layer 2 mode, you can only use one Layer 3 interface at a time.

This is just an assumption based on the partial config provided. If in fact the switch is in Layer 3 mode, then as Craig stated you need to add a default route.

Lastly, enable Layer 3 mode by entering ip routing.
0
 

Author Comment

by:lconnell
ID: 39967862
Hello,

So pinging the the 3550 really isn't what I am trying to achieve. I want to ping a device connected to the switch and I cannot do that.

-I can NOT ping  anything on the (vlan 132) from (vlan 342).
0
 
LVL 6

Accepted Solution

by:
Hassan Besher earned 167 total points
ID: 39968398
if you want to do routing based on the router not the switch:

1) make sure that pcs in vlan132 have gateway 172.16.132.8 and they are connected to switch interfaces has :
#sw mode acc
#sw acc vlan 132

2) make sure that pcs in vlan342  have gateway 10.2.42.254 and they are connected to switch interfaces has :
#sw mode acc
#sw acc vlan 342

3) make sure the router subinterfaces connected to switch trunk port with encap dot1q without any filtering

and you should be good to go!
0
 

Author Comment

by:lconnell
ID: 39981663
I don't have access to this equipment anymore so I can't troubleshoot any further.  I am assuming it was probably a gateway issue on one of the servers I was trying to access.

Thanks!
0

Featured Post

Highfive Gives IT Their Time Back

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
MPLS Network Question 2 35
Eigrp Router 5 48
How to use a IP block on cisco 877 3 28
server plus 2 47
There are two basic ways to configure a static route for Cisco IOS devices. I've written this article to highlight a case study comparing the configuration of a static route using the next-hop IP and the configuration of a static route using an outg…
#Citrix #Citrix Netscaler #HTTP Compression #Load Balance
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now