Re: checksum of lsrr

2007-08-18 Thread Ken-ichirou MATSUZAWA
Hello, I'm sorry I make a fuss. Only FYI, one of my box has 3Com NIC 00:0c.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 78) Subsystem: 3Com Corporation 3C905C-TX Fast Etherlink for PC Management NIC Flags: bus master, medium devsel, latency 32, IRQ 11

Re: checksum of lsrr

2007-07-22 Thread Ken-ichirou MATSUZAWA
Hello, From: Ken-ichirou MATSUZAWA <[EMAIL PROTECTED]> Subject: checksum of lsrr Date: Wed, 04 Jul 2007 22:28:24 +0900 (JST) > if we change destination address, we need recompute not only ip > checksum but also tcp's, don't we? I was ashamed of myself for much confus

checksum of lsrr

2007-07-04 Thread Ken-ichirou MATSUZAWA
Hello, I tried source routing with netcat just for my interest but it did not work. tcpdump output follows: 00:07:40:53:bd:55 > 00:01:8e:b3:82:1c, ethertype IPv4 (0x0800), length 86: (tos 0x0, ttl 64, id 50437, offset 0, flags [DF], proto: TCP (6), length: 72, options (LSRR 172.27.129.2 172.2