Package: arpwatch
Version: 2.1a13-2
The arpfetch shell script included with the arpwatch package needed a
few tweaks before I could get it to work. Here are my changes in diff
format :-
--- /usr/sbin/arpfetch 2004-09-15 14:55:10.000000000 +0100
+++ /usr/sbin/arpfetch2 2007-01-10 14:10:39.000000000 +0000
@@ -1,6 +1,6 @@
#!/bin/sh
#
-# arpfetch - collect arp data from a cisco using snmpwalk
+# arpfetch - collect arp data from a switch using snmpwalk
#
if test $# -ne 2; then
echo "usage: $0 host cname"
@@ -11,29 +11,28 @@
cname=$2
temp=`tempfile -p arpft -s .temp.tmp`
errs=`tempfile -p arpft -s .errs.tmp`
-what="ip.ipnettomediatable.ipnettomediaentry.ipnettomediaphysaddress"
+oid="1.3.6.1.2.1.4.22.1.2"
#
# Get the data
#
-snmpwalk -v 1 $host $cname $what | 2>&1 tr A-Z a-z > $temp
+snmpwalk -v2c $host -c $cname -t 10 -On $oid | 2>&1 tr A-Z a-z >
$temp
#
# Try to make up for the fact that snmpwalk doesn't write errors to stderr
#
-grep -v $what $temp > $errs
+grep -v $oid $temp > $errs
if test -s $errs; then
cat $errs 1>&2
rm -f $temp $errs
exit 1
fi
#
-# Convert the results
+# Convert the results to "<MAC Address>tab<IP Address>" format
#
sed -e 's/[ ][ ]*/ /g' \
-e 's/ = hex: /=/' \
-e 's/ $//' \
-e 's/ /:/g' \
- -e 's/^.*\.\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\)=\(.*\)/\2 \1/' \
- -e 's/:0/:/g' \
- -e 's/^0//' $temp
+ -e
's/^.*\.\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\):=:string::\(.*\)/\2\t\1/g' $temp
#
rm -f $temp $errs
+
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