tcpdump and IPv6
I have been experimenting with IPv6 and tcpdump libpcap over the past several weeks and here are some of the filters that I have found working for me to look for certain types of IPv6 traffic. tcpdump and IPv6 still has some limitations but it is still able to zoom in on some of the data you might be looking for. Here is the list of libpcap filters:
IPv6 and TCP
tcpdump -nr ipv6_traffic.pcap ip6 proto 6
tcpdump -nr ipv6_traffic.pcap ip6 protochain 6
IPv6 and UDP
tcpdump -nr ipv6_traffic.pcap ip6 proto 17
tcpdump -nr ipv6_traffic.pcap ip6 and udp
IPv6, hostIPv6 and host fec0:0:0:bebe::2
tcpdump -nr ipv6_traffic.pcap ip6 host fec0:0:0:bebe::2
IPv6, host fec0:0:0:bebe::2 and TCP port 22
tcpdump -nr ipv6_traffic.pcap ip6 host fec0:0:0:bebe::2 and tcp port 22
IPv6, host fec0:0:0:bebe::2 and everything except TCP port 22
tcpdump -nr ipv6_traffic.pcap ip6 host fec0:0:0:bebe::2 and not tcp port 22
tcpdump -nr ipv6_traffic.pcap ip6 host fec0:0:0:bebe::2 and protochain 6 and not tcp port 22
IPv6, host fec0:0:0:bebe::2, and all traffic to destination port TCP 22
tcpdump -nr ipv6_traffic.pcap ip6 host fec0:0:0:bebe::2 and tcp dst port 22
IPv6, host fec0:0:0:bebe::2, and all traffic from source port TCP 22
tcpdump -nr ipv6_traffic.pcap ip6 host fec0:0:0:bebe::2 and tcp src port 22
If you have tested other libpcap filters not listed here and would like to share them, post them in the comment form or email them via our contact form.
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Guy Bruneau IPSS Inc. gbruneau at isc dot sans dot edu
Comments
Anonymous
Dec 3rd 2022
10 months ago
Anonymous
Dec 3rd 2022
10 months ago
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<a hreaf="https://technolytical.com/">the social network</a> is not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go. The social networks only collect the minimum amount of information required for the service that they provide. Your personal information is kept private, and is never shared with other companies without your permission
Anonymous
Dec 26th 2022
9 months ago
Anonymous
Dec 26th 2022
9 months ago
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<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
Anonymous
Dec 26th 2022
9 months ago
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> nearest public toilet to me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
Anonymous
Dec 26th 2022
9 months ago
Anonymous
Dec 26th 2022
9 months ago
https://defineprogramming.com/
Dec 26th 2022
9 months ago
distribute malware. Even if the URL listed on the ad shows a legitimate website, subsequent ad traffic can easily lead to a fake page. Different types of malware are distributed in this manner. I've seen IcedID (Bokbot), Gozi/ISFB, and various information stealers distributed through fake software websites that were provided through Google ad traffic. I submitted malicious files from this example to VirusTotal and found a low rate of detection, with some files not showing as malware at all. Additionally, domains associated with this infection frequently change. That might make it hard to detect.
https://clickercounter.org/
https://defineprogramming.com/
Dec 26th 2022
9 months ago
rthrth
Jan 2nd 2023
9 months ago