mirror of
https://github.com/munin-monitoring/contrib.git
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56 lines
1.3 KiB
Bash
Executable File
56 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# Plugin to monitor ARP entries per interface
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#
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# Parameters understood:
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#
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# config (required)
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# autoconf (optional)
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#
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# Made by Sven Hartge (sven AT svenhartge DOT de)
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#
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#
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#%# family=contrib
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#%# capabilities=autoconf suggest
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INTERFACE=`basename $0 | sed 's/^arp_//g' | tr '_' '.'`
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if [ "$1" = "autoconf" ]; then
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# Search for arp
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which arp >/dev/null 2>/dev/null || (echo "no (can't find arp binary)" && exit 1)
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# ...or success
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echo yes
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exit 0
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fi
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if [ "$1" = "suggest" ]; then
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if [ -r /proc/net/dev ]; then
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egrep '^ *(eth|wlan|ath|ra)[0-9]+(\.[0-9]+)?:' /proc/net/dev | cut -f1 -d: | sed 's/ //g' | tr '.' '_'
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exit 0
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else
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exit 1
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fi
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fi
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if [ "$1" = "config" ]; then
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echo "graph_title ARP entries for $INTERFACE"
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echo 'graph_args --base 1000 -l 0'
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echo 'graph_vlabel Entries'
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echo 'graph_category network'
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echo 'graph_scale no'
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echo "graph_info This graph shows the number of ARP entries registered by the system for interface $INTERFACE."
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echo 'entries.label ARP entries'
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echo 'entries.draw LINE2'
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echo 'entries.type GAUGE'
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echo 'entries.info Number of ARP entries'
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exit 0
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fi
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arp -an -i $INTERFACE | awk 'BEGIN { regex="<incomplete>";} { if (!match($4,regex)) { a[$4] }} END{for(i in a){n++};print "entries.value " n}'
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