No ping from some vlans

[netacaduser575395547]

Hi

We had a migration from an old firewall which has all vlans,dhcp,,, to the core switch which has same vlans but different ip range. I moved evey vlan with its ip to the core and it was a success. however, vlan4 and 12 does has some issues. i cant ping vlan 4 or 12. but Pcs from either vlan has an ip from the dhcp which is on the core sw. vlan 4 has internet access but vlan 12 doesn't.  i am more worried about why the core switch cant ping its vlans? all up and connected on the routing table.

when i first start, i has many dublicated ips but since then, i had tuned off the FW.

the core sw is connected to a new FW which is connected to the isp. i put a default route to the new FW. Also, there is another L3 switch connected to the core but i had removed its ospf and made a default route to the core mgm ip.

[Richard Burts]

There is certainly something going on with vlans 4 and 12. What we see in the posted information they seem normal, but the behavior is not normal. To help us understand better would you post the output of show interface status? And would you post the output of a slightly different version of show arp:  show arp | include 10.0.0|10.12.0

[balaji.bandi]

Can you post high level diagram how your network looks like.

also clear arp table and shut and no shut for the vlan not working.

Always check the Logs on the switch that give indication.