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SubjectRe: [PATCH] ipv4: fix fib metrics
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On Thu, Mar 24, 2011 at 7:45 PM, Eric Dumazet <eric.dumazet@gmail.com> wrote:
> Le jeudi 24 mars 2011 à 19:14 +0100, Alessandro Suardi a écrit :
>
>>
>> I will however make one more bug report, as vpnc is broken before
>>  and after this patch - have to dig out what vpnc-script tries to do,
>>  which results in
>>
>> Error: either "to" is duplicate, or "ipid" is a garbage.
>>
>>  after establishing the VPN tunnel.
>>
>
> try following patch
>
> http://git2.kernel.org/?p=linux/kernel/git/davem/net-2.6.git;a=commit;h=406b6f974dae76a5b795d5c251d11c979a4e509b

That one doesn't work.

On a -git14 kernel + both the fib metrics and the above git diff, I
strace'd vpnc
and found out this (first triplet of public IP masked intentionally)

[root@duff tmp]# egrep 'execve|garbage' strace.log |egrep '/ip|garbage'
[pid 4228] execve("/sbin/ip", ["/sbin/ip", "route", "get",
"xxx.9.13.212"], [/* 32 vars */]) = 0
[pid 4231] execve("/sbin/ip", ["/sbin/ip", "route", "replace",
"10.175.0.0/19", "dev", "tun0"], [/* 32 vars */]) = 0
[pid 4232] execve("/sbin/ip", ["/sbin/ip", "route", "flush",
"cache"], [/* 32 vars */]) = 0
[pid 4234] execve("/sbin/ip", ["/sbin/ip", "route", "get",
"xxx.9.13.212"], [/* 32 vars */]) = 0
[pid 4237] execve("/sbin/ip", ["/sbin/ip", "route", "add",
"xxx.9.13.212", "via", "192.168.1.1", "dev", "eth1", "src",
"192.168.1.8", "ipid", "0x043f", "advmss", "1400"], [/* 32 vars */]) =
0
[pid 4237] write(2, "Error: either \"to\" is duplicate,"..., 57Error:
either "to" is duplicate, or "ipid" is a garbage.
192.168.1.1 is my DSL router and 192.168.1.8 is my computer's wireless IP.

Does this ring any bell ?


Thanks,

--alessandro

 "There's always a siren singing you to shipwreck"

   (Radiohead, "There There")
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