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2824 Routing issues

 
John H. Miller
Occasional Advisor

2824 Routing issues

Hello, I am trying to use the 2824 as a router, but not having much luck. The config is attached. There are only 2 relevant VLANS; 1 & 90.  I have port 1 set up on VLAN 90 and only one machine attached (192.168.90.100). From this machine I can ping either interface (192.168.90.1 & 143.246.0.72) but can not ping anything else on the 143.246.0.0/17 network. Can someone please tell me what I am missing?

 

Thanks - John

 

Well, I tried to attach the config, but it would not post, so here is the config inline:

 

Running configuration:

; J4903A Configuration Editor; Created on release #I.10.77

time timezone -300
time daylight-time-rule Continental-US-and-Canada
interface 19
   speed-duplex 100-full
exit
interface 20
   speed-duplex 100-full
exit
interface 24
   speed-duplex auto-10
exit
ip default-gateway 143.246.0.50
ip routing
ip timep manual 143.246.0.1 interval 1440

vlan 1
   name "DEFAULT_VLAN"
   untagged 2-24
   ip address 143.246.0.72 255.255.128.0
   no untagged 1
   exit
vlan 2
   name "Student"
   exit
vlan 3
   name "Guest"
   exit
vlan 99
   name "Pass-thru"
   exit
vlan 90
   name "ARA"
   untagged 1
   ip address 192.168.90.1 255.255.255.0
   exit
no stack
password manager

3 REPLIES
Fredrik Lönnman
Honored Contributor

Re: 2824 Routing issues

Hi,

 

Are you sure the computers in 143.246.0.0/17 are able to find its way back to your 192.168.90.0/24 network?

SInce you're not using any dyanmic routing protocol you'll have to manually specify that the 192.168.90.0/24 network is routed via 143.246.0.72, probably from the machine that is acting gateway for the other clients (143.246.0.50?)

 

 

edit: also, i think that ip default-gateway is only used when the switch is not in routing mode, when its routing you'll have to use ip route 0.0.0.0 0.0.0.0 143.246.0.50 for the default gateway.

---
CCIE Service Provider
MASE Network Infrastructure [2011]
H3CSE
CCNP R&S

Gerhard Roets
Esteemed Contributor

Re: 2824 Routing issues

Hi John

 

What is the default gateway for the devices in Vlan 1 ?

 

For now I am assuming it is 143.246.0.50

 

Does the device 143.246.0.50 have a route pointing to network 192.168.90.0/24 via 143.246.0.72 ? If nto it should have one :).

 

HTH

Gerhard

John H. Miller
Occasional Advisor

Re: 2824 Routing issues

Oh, DUH. What was I thinking??! Yes, that is most likely the issue. You are both correct. The 0.50 machine is the gateway. I will make changes to get a path back to VLAN 90 and I am sure that will fix the issue.

 

Thanks to you both for answering my question. - John