So the router needs it on the interface closest to the source of the broadcast.<BR><BR>So if the issue is related to using ip helper stuff, the config is the same for tftp vs dhcp.

Since you use ACL 160 for each, it's hard to tell.<BR><BR>Basically, the ip helper address and exceptions for bootp should allow the 3550 to act as a relay for dhcp, turning requests (broadcasts ...

Many gateways let you set aside specific addresses (sometimes called “DHCP reservations”) to avoid re-using an IP on the network. Others let you set the start of an IP range.

Checking your computer's IP address every time you need it can get tedious. Here's how to set up DHCP reservations on your router so that each compute ...