netdev - Re: [PATCH] iputils: ping by mark

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Date:	Sat, 17 Oct 2009 19:34:45 -0400
From:	jamal <hadi@...erus.ca>
To:	Maciej Żenczykowski <zenczykowski@...il.com>
Cc:	Rob.Townley@...il.com, YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>,
	netdev@...r.kernel.org
Subject: Re: [PATCH] iputils: ping by mark

On Sat, 2009-10-17 at 19:04 -0400, jamal wrote:

> This patch has worked fine in
> 2.6.31 and pre-31 where i tested. 

Ok, just to be sure - here's a simple test i just did on my laptop...

------
hadi@...o:~$ uname -a
Linux dogo 2.6.31-rc7-00001-g6da17c5-dirty #7 PREEMPT Thu Oct 15
16:35:13 EDT 2009 i686 GNU/Linux
hadi@...o:~$ ip a ls dev eth0
11: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UNKNOWN qlen 1000
    link/ether 00:0b:97:97:4d:6a brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.31/24 brd 10.0.0.255 scope global eth0
    inet 10.0.0.2/32 scope global eth0
    inet6 fe80::20b:97ff:fe97:4d6a/64 scope link 
       valid_lft forever preferred_lft forever
hadi@...o:~$ ip ru ls
0:	from all lookup local 
15:	from all fwmark 0xf lookup 15 
16:	from all fwmark 0x10 lookup 16 
32766:	from all lookup main 
32767:	from all lookup default 

hadi@...o:~$ ip r ls table 15
208.67.217.231 via 10.0.0.1 dev eth0  src 10.0.0.31 
hadi@...o:~$ ip r ls table 16
208.67.217.231 via 10.0.0.1 dev eth0  src 10.0.0.2 
hadi@...o:~$ 

One ping with -m 15 -c1 to 208.67.217.231, tcpdump:
19:22:09.467555 IP 10.0.0.31 > 208.67.217.231: ICMP echo request, id
34328, seq 1, length 64
19:22:09.535429 IP 208.67.217.231 > 10.0.0.31: ICMP echo reply, id
34328, seq 1, length 64

repeat ping with -m 16 and watch tcpdump
19:23:19.731592 IP 10.0.0.2 > 208.67.217.231: ICMP echo request, id
50712, seq 1, length 64
19:23:19.790672 IP 208.67.217.231 > 10.0.0.2: ICMP echo reply, id 50712,
seq 1, length 64

------


I have also tried it with udp (hacked netcat) and i dont see any problem
either

What did i miss?

cheers,
jamal

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