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DHCP Autoconfiguration not working on IE-3000

tharpmatthew
Level 1
Level 1

All,

I have a Cisco IE-3000-8TC running 15.0(2) EY1 IES-IPSERVICESK9-M. I am trying to configure the switch to auto configuration (download only the configuration file and not the software image) via DHCP from a combination DHCP/TFTP server. When I configure the switch with the commands (on initial configuration):

Switch#configure terminal

Switch(config)#boot host dhcp

Switch(config)#boot host retry timeout 300

Switch(config)#end

Switch#copy running-config startup-config

Switch#show boot

It shows that the config via DHCP is enabled, but the switch never sends a DHCP discovery broadcast. The terminal screen shows status messages show: "%BOOT_HOST_DHCP-6-INGO: configuration download via DHCP started". However, when I wireshark the connection. I see no DHCP traffic at all. Then the switch reports a timeout after the 300 seconds expires.

Just to be thorough, I tested setting interface FastEthernet1/2 (which is connected to my DHCP/TFTP server) to ip address dhcp and it will send out a DHCP request to which the DHCP server responds correctly assigning the IP address, giving the tftp server address and the boot file name. So, the problem is definitely with my configuration of the IE-3000.

Any suggestions?

I have attached the startup-config file from the IE-3000.

1 Reply 1

tharpmatthew
Level 1
Level 1

I was able to fix the issue. The key was to clear the startup configuration by:

Switch#clear startup-config

Switch#configure terminal

Switch(config)#boot host dhcp

Switch(config)#boot host retry timeout 300 !This is optional

Switch(config)#end

Switch#exit

Then I simply restart the switch and the DHCP autoconfigure worked.