can surf but not ping outside

[Nick]

hello list:   i recently updated my kernel becuase i wanted to ip masq. and felt that if i needed to compile, might as well compile for a reason, to upgrade too!  2.2.15 w/ 2.1 debian   anyways i have ipchains set up, my policies are as follows ipchains -A forward -s 192.168.1.0/24 -j MASQ   i can now surf the internet from my inside network but CAN NOT PING anything but my own gateway!   when i try to ping, my error is as follows: icmplog:  desination unreachable from localhost 127.0.0.1 icmplog:  desination unreachable from  pbi.net (my dsl)   i can look up the DNS but can seem to match up the IP   how do i correct this problem either with ipchains or modprobing?