Re: [Bugme-new] [Bug 14007] New: iproute2: socket lookup after policy-based local route returns "connect: Invalid argument"

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On Wed, 19 Aug 2009 08:55:44 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:

http://bugzilla.kernel.org/show_bug.cgi?id=14007

           Summary: iproute2: socket lookup after policy-based local route
                    returns "connect: Invalid argument"
           Product: Networking
           Version: 2.5
    Kernel Version: 2.6.31
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: IPV4
        AssignedTo: shemminger@linux-foundation.org
        ReportedBy: markus@selfnet.de
        Regression: No


I want to add policy based routes to my local machine similar to the iptables
redirect command. With this it is possible to redirect connections without
losing the destination ip.
So i tried to add an route of type local to another routing table then table
local:

sudo ip route add local 192.168.33.0/24 dev eth0 table local
ping 192.168.33.1 -c 1
#working

sudo ip route add local 192.168.34.0/24 dev eth0 table main
ping 192.168.34.1 -c 1
#connect: Invalid argument

The first one is working, the secound one not. The only difference is another
routing table. icmp is only an example, tcp and udp doesnt work neither.

I guess somewhere in the socketlookup linux checks the destination ip with the
local routes only in the local table. perhaps the other tables are missed.

btw: i tried it on every linux with iproute2 i found. with no succeed