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= Beheben (ARP-Cache / neighbour table vergrößern) =
Die Größe des ARP-Caches wird über drei ''sysctl''-Variablen gesteuert:
* bei IPv4
<pre>net.ipv4.neigh.default.gc_thresh1</pre>
<pre>net.ipv4.neigh.default.gc_thresh2</pre>
<pre>net.ipv4.neigh.default.gc_thresh3</pre>
* bei IPv6
<pre>net.ipv6.neigh.default.gc_thresh1</pre>
<pre>net.ipv6.neigh.default.gc_thresh2</pre>
<pre>net.ipv6.neigh.default.gc_thresh3</pre>
sysctl -w net.ipv4.neigh.default.gc_thresh1=8192
sysctl -w net.ipv4.neigh.default.gc_thresh2=16384
sysctl -w net.ipv4.neigh.default.gc_thresh3=32768
sysctl -w net.ipv6.neigh.default.gc_thresh1=8192
sysctl -w net.ipv6.neigh.default.gc_thresh2=16384
sysctl -w net.ipv6.neigh.default.gc_thresh3=32768
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