I have configured a 2611 as dhcp server. This attaches to a 3550/48 switch. Workstations are a mix of 95-98-2000. They get an ip and mask and dns server ip's but no default gateway. What have I missed.
Use cisco tftp server software. First do a copy from flash to the tftp sever that will save your old IOS. Then do a copy tftp to flash wtih the new IOS