--------------020906050109040301020404 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit hi tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 \ match ip src 1.2.3.4 match tcp dst 80 0xffff flowid 1:10 in the above command i would like to know what does the string "0xffff" stand for, i know it is explained in adv. routing howto's u32 section; but i could not make any heads or tails of it. can some explain in detail any links would also do. thanks shekhar --------------020906050109040301020404 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit <html> <head> </head> <body> hi<br> <br> <pre><a name="sharing">tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 \ match ip src 1.2.3.4 match tcp dst 80 0xffff flowid 1:10</a></pre> in the above command i would like to know what does the string "0xffff" stand for, i know it is explained in adv. routing howto's u32 section; but i could not make any heads or tails of it. can some explain in detail any links would also do.<br> <br> thanks<br> shekhar <br> </body> </html> --------------020906050109040301020404--