Re: arplookup: unable to enter address - host is not on local network

[Ryota Ozaki <ozaki-r%netbsd.org@localhost>]

Hi,

On Mon, Sep 14, 2015 at 4:49 PM, Benjamin Lorenz <bl%pocketservices.de@localhost> wrote:
>
> Talking about
> http://ftp.netbsd.org/pub/NetBSD/NetBSD-current/src/sys/netinet/if_arp.c: I
> have a hoster (www.vultr.com) with some strange(?) network setup. All
> kernels (6.1 and 7.0 RC) complain with plenty of log messages highlighted
> below. They screw up dmesg output so I had to comment out the log statement
> and compile my own kernel.
>
> Question: Is this setup something vultr should change, or is our debug
> logging a little bit too pedantic/paranoid so we should consider removing
> it?

We discussed a similar issue ever and introduced a sysctl to suppress
the messages in -current:
http://mail-index.netbsd.org/tech-kern/2014/11/13/msg017981.html

So I think we can pull up the sysctl to netbsd-6 and netbsd-7
if you want. (It may take a while though.)

  ozaki-r

>
> Thanks for insight,
> Benjamin
>
>
>
>
> if (create) {
> if (rt->rt_flags & RTF_GATEWAY) {
> if (log_unknown_network)
> why = "host is not on local network";
> } else if ((rt->rt_flags & RTF_LLINFO) == 0) {
> ARP_STATINC(ARP_STAT_ALLOCFAIL);
> why = "could not allocate llinfo";
> } else
> why = "gateway route is not ours";
> if (why) {
> log(LOG_DEBUG, "arplookup: unable to enter address"
>    " for %s@%s on %s (%s)\n", in_fmtaddr(*addr),
>    lla_snprintf(ar_sha(ah), ah->ar_hln),
>    (ifp) ? ifp->if_xname : "null", why);
> }
> if ((rt->rt_flags & RTF_CLONED) != 0) {
> rtrequest(RTM_DELETE, rt_getkey(rt),
>        rt->rt_gateway, rt_mask(rt), rt->rt_flags, NULL);
> }
> }
>
>