# # get rid of all short IP fragments (too small for valid comparison) # block in proto tcp all with short # # drop and log any IP packets with options set in them. # block in log all with ipopts # # log packets with BOTH ssrr and lsrr set # log in all with opt lsrr,ssrr # # drop any source routing options # block in quick all with opt lsrr block in quick all with opt ssrr