Thanks Christian! I've finally checked in a (slightly different) fix. Wanna
check & make sure it still works for you?
Eddie
Christian Kreibich wrote:
> Hi,
>
> I think there's an off-by-one in elements/ip/lookupiproutelinux.c:
>
> --- lookupiproutelinux.cc 2006-05-19 00:12:21.000000000 -0700
> +++ lookupiproutelinux.cc.new 2007-04-09 11:27:48.000000000 -0700
> @@ -59,7 +59,7 @@
> {
> _out2devname = conf;
> _nout = _out2devname.size();
> - if (_nout + 1 >= noutputs())
> + if (_nout + 1 > noutputs())
> return errh->error("need %d or more output ports", _nout + 1);
> return 0;
> }
>
> Basically, when you configure the element with n devices and use n+1
> output ports (as should be), then you still get the error because n+1 ==
> noutputs(). Adding discarders works around the problem:
>
> r : LinuxIPLookup(eth0, eth1)
> r[0] -> ... -> ToDevice(eth0)
> r[1] -> ... -> ToDevice(eth1)
> r[2] -> ICMPError(18.26.4.24, 3, 0) -> ...
> r[3] -> Discard
>
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