arplookup/arpresolved failure messages in mailserver

From: Khaled (khaled_at_ipbill.com)
Date: 09/30/05

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    To: "FreeBSD General" <freebsd-net@freebsd.org>
Date: Fri, 30 Sep 2005 16:22:02 +0100

    Hi,

    I am seeing a lot of these messages in my /var/log/messages directory and
    cannot understand why:

    arplookup 192.168.0.12 failed: could not allocate llinfo
    arpresolve: can't allocate llinfo for 192.168.0.12rt

    There were more of these messages for two other IPs (one external), but this
    is the only one with 'rt' trailed at the end of the IP. Whats this for?

    Its been happenning since yesterday and it seems that the server is
    attempting this every 2-3 seconds, which I think is the cause for a sluggish
    mailserver (this litterally happened over night!).

    Also, would this be linked to another incident which meant that all mail was
    being dumped in queue (im running qmail MTA)?

    Following a restart of the mail server, we experienced routing problems such
    that we were not able to access the server from the office LAN but could be
    accessed by another machine on its LAN; zebrad and ospfd did not start at
    restart. Why was this?

    This morning, all seems to be fine accept a couple of the following messages
    from last night:

    Sep 29 16:08:26 freebsd10 /kernel: arplookup 217.73.66.16 failed: host is
    not on local network
    Sep 29 17:40:50 freebsd10 /kernel: arplookup 217.73.66.16 failed: host is
    not on local network
    Sep 29 23:46:38 freebsd10 /kernel: arplookup 217.73.66.16 failed: host is
    not on local network

    Forgive me for being such a novice...but I am :)

    Thanks

    Khaled

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