Yes he needs to turn off the DHCP and change his LAN IP to the same IP scheme but ending in an different number.
if Thomson IP is 192.168.1.1
make Linksys IP 192.168.1.254
thx for the reply .but i still hav some doubts. hope u'll help me clear it..
if i disable the dhcp of the linksys router (the second router) who will assign the ip for systems connecting to it thru wired or wireless. pls make it clear for me . thx