Dan,
Ohhh.. Its a little Tough... after looking at the HP switch config... I will try to convert this config as best as I can...
On HP Switch, port 19-20 are configured as trunk links with LACP port chanelling to some other switch. Please check and confirm... Do the following on 3550:
Config t
Interface fa 0/19
Switchport trunk encapsulation dot1q
switchport mode trunk
Interface fa 0/20
Switchport trunk encapsulation dot1q
switchport mode trunk
Check if you are using the port-channel (just to be sure) and then configure the portchannel using the link below on port 19 and 20.
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225sec/3550scg/swethchl.htm#wp1033981
Once this is done, configure the " IP routing " and Layer-3 SVI's along with the helper address to direct the DHCP broadcaststs to the DHCP server.
Config t
IP routing
Interface vlan 10
ip address xxx.xxx.xxx.xxx 255.255.255.252
ip helper-address xxx.xxx.xxx.xxx
Interface vlan 210
ip address xxx.xxx.xxx.xxx 255.255.255.0
ip helper-address xxx.xxx.xxx.xxx
Interface vlan 300
ip address xxx.xxx.xxx.xxx 255.255.254.0
ip helper-address xxx.xxx.xxx.xxx
Ip route 0.0.0.0 0.0.0.0 xxx.xxx.xxx.xxx
I see that IGMP has been enabled on the HP switch. You can enable the same using the following links:
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225sec/3550scg/swigmp.htm
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225sec/3550scg/swmcast.htm
Please find the 3550 Config guide below for configuration.
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225sec/3550scg/index.htm
HTH,Please rate if it does.
-amit singh
