trace route issue w OSPF

[lpaz]

Hi All:

We are a school district with about 16 buildings. We have HP 5406 as our edge switches in all buidlings except our high school, which is has a HP 5412.

I recently created a vlan, with vlan id 75,  to be used for our wireless clients on the 10.x.176.0 network. From the HP 5412, most of the traceroutes are working, however I have a few schools where it is not working. At the locations where the traceroute does not go thru, the teachers are complaining the wireless is slow. I beleive it is a routing issue, but when I do a show ip route, everything looks correct.

We are using ospf routing, with 1 area.

For example, I can do a traceroiute from the HP 5412 to 10.130.176.1, and it goes thru:

traceroute 10.130.176.1

traceroute to 10.130.176.1 ,

              1 hop min, 30 hops max, 5 sec. timeout, 3 probes

 1 192.168.50.24        13 ms      3 ms      2 ms

But when I do a traceroute to 10.140.176.1, it times out:

10.140.176.1 ,

              1 hop min, 30 hops max, 5 sec. timeout, 3 probes

 1  *  *  * 

 2  *  *  * 

If I do a show ip route on the HP 5412 , it shows this for the 10.130.176.0 network:

10.130.112.0/21    192.168.50.24   99   ospf      External2  10         110  

  10.130.128.0/24    192.168.50.24   99   ospf      External2  10         110  

  10.130.176.0/21    192.168.50.24   99   ospf      External2  10         110  

  10.130.192.0/24    192.168.50.24   99   ospf      External2  10         110 

Here is the show ip route for the 10.140.176.0 network:

10.140.112.0/21    192.168.50.84   99   ospf      External2  10         110  

  10.140.128.0/24    192.168.50.84   99   ospf      External2  10         110  

  10.140.176.0/21    192.168.50.84   99   ospf      External2  10         110  

  10.140.192.0/24    192.168.50.84   99   ospf      External2  10         110

Here is the vlan and routing config from the HP 5406 switch at the 10.140.176.0 location:

router ospf

   area backbone

   redistribute connected

   enable

   exit

vlan 75

   name "PK_TEMP"

   tagged A1,B1-B6,B21

   ip address 10.140.176.1 255.255.248.0

   ip helper-address 204.234.4.40

   ip igmp

   ip pim-dense

      ip-addr any

      exit

   exit

And here is the router and vlan config information form the 10.130.x.x site, where the traceroute does work:

router ospf

   area backbone

   redistribute connected

   enable

   exit

vlan 75

   name "NE_TEMP"

   tagged A6,A8-A12,A14,A16-A22,B15

   ip address 10.130.176.1 255.255.248.0

   ip helper-address 204.234.4.40

   ip igmp

   ip pim-dense

      ip-addr any

      exit

   exit

Appreciate any assistance you may be able to provide wiht this!

[lpaz]

Apologize, don't mean to bump this, ( if this board does that), but I beleive this may have something to do with the ICMP configuration on the switch. It seems strange the pings go thru, but traceroute does not, yet on some of the other switches both pings and traceroute goes thru and completes. I'm going to look at the configs on the switches that do work and see if I can find anything.