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Last change
on this file since 10132 was 10132, checked in by richardvm, 13 years ago |
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cleaning house
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-
Property svn:executable
set to
*
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File size:
546 bytes
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| 1 | #!/bin/sh
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| 2 | # Discover nanostation using CDPv1 packets
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| 3 | # Credits: http://sidewynder.blogspot.com/2005/07/tcpdump-filter-for-capturing-only.html
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| 4 |
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| 5 | if [ "x$1" = "x" ]; then
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| 6 | echo "Usage: $0 <iface> [count]" 1>&2
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| 7 | echo "Find (lost) Nanostation IP using 'count' CDPv1 packet(s)"
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| 8 | echo "Normally CDPv1 packets get send every minute" 1>&2
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| 9 | echo "Interface hints: `ifconfig -l`" 1>&2
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| 10 | exit 1
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| 11 | fi
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| 12 | IFACE=$1
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| 13 | # By default the local and remote will announce a broadcast.
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| 14 | COUNT=${2-2}
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| 15 |
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| 16 |
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| 17 | tcpdump -nn -v -i $IFACE -s 1500 -c $COUNT 'ether[18:4] == 0x000c2000'
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