Neighbour table overflow

linux 2.6:

Since I got a new Router (Zyxel 650) my syslog is full with something like:

Oct 9 01:12:30 limpio kernel: printk: 12681 messages suppressed.
Oct 9 01:12:30 limpio kernel: Neighbour table overflow.

According to my research this is related with arp-table. This is funny,
cause my machine is currently the only machine behind the router. Only a
VoIP-device (a cisco ATA 186) is connected to the router as well.

So the only entry in the arp-table is the router itself.

What is going on? (or better : where should I start looking to find out
what is going on/wrong?)

thnx,
peter


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