Hello Cisco Gurus, I need help on the following senario; We have 9 vlans and the client obtain ip addresses from DHCP server which 193.132.119.236 it has 9 scopes one for each vlan. vlan address range 1 to 8 starts as 192.168.103.0/24 192.168.104.0/24 192.168.105.0/24 192.168.106.0/24 192.168.107.0/24 192.168.108.0/24 192.168.109.0/24 192.168.110.0/24 which gets translated at cat 5509 as 193.132.118.x /24 Main Lan is 193.132.119.0/24 last week, all of a sudden no one was able to obtain an ip address from DHCP server and the Route Switch module on CAT5509 locked up, so I had to reset the route switch module and everything started working again, it happened couple of times. I'm a bit curious to find out if any of you come accross this problem, if yes, how it you resolve it? Many thanks! DMK Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=7323&t=7323 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]