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    Date
    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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