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Created November 29, 2011 14:54
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Monitor DHCP traffic with tcpdump
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gistfile1.sh
# Monitoring on interface eth0
tcpdump -i eth0 -n port 67 and port 68
@Slawka
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Slawka commented Sep 7, 2019 •
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tcpdump -Z slawka -z gzip -i eth0 -A -s65535 -G 1800 -C 50 -w /home/slawka/trace/dhcp_eth0.pcap port 67 and port 68 &

Background Rotate 1800 second or 50 MB

@bamartin125
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tcpdump -i eth0 -pvn port 67 and port 68

@albert-a
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Thanks, it works

@tcpdump-examples
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capture dhcpv6 packets

tcpdump -i eth0 -n -vv '(udp port 546 or port 547)'

@tcpdump-examples
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We can get more tcpdump examples from here.

10 Useful tcpdump command examples

@iamjenechka
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it's good!

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