Your message dated Sat, 18 Sep 2021 14:38:37 +0200 with message-id <caht6kzgfnleqsob5p_tazjye-onw7supelusenqvf+fk+kt...@mail.gmail.com> and subject line Closing has caused the Debian Bug report #281731, regarding manpage: "proto ip6" - Multiple discrepancies in ipv6 docs to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 281731: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=281731 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: tcpdump Version: 3.8.3-3 Severity: minor when executing tcpdump to look for all IPv6 packets on port 179 (to sniff BGP4+ packets), I encountered a strange behavior: pikachu:/home/paul# tcpdump proto ipv6 and dst port 179 tcpdump: expression rejects all packets Apparently, port only performs actions on IPv4. But the documentation says: Allowable primitives are: .... dst port port True if the packet is ip/tcp, ip/udp, ip6/tcp or ip6/udp and has a destination port value of port. The port can be a number or a name used in /etc/services (see tcp(7) and udp(7)). If a name is used, both the port number and protocol are checked. If a number or ambiguous name is used, only the port number is checked (e.g., dst port 513 will print both tcp/login traffic and udp/who traffic, and port domain will print both tcp/domain and udp/domain traffic). Which indicates that port can accept IPv6 traffic. But furthermore, according to the documentation, I should be using "proto ip6" rather than "proto ipv6". pikachu:/home/paul# tcpdump proto ip6 tcpdump: syntax error Evidently there are many discrepancies between what the documentation says and what the program actually does. I'm assuming that the documentation has fallen behind the binary, but if so, the loss of being able to use port stuff with IPv6 is disappointing. -- System Information: Debian Release: 3.1 APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing') Architecture: i386 (i686) Kernel: Linux 2.6.8-1-k7 Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Versions of packages tcpdump depends on: ii libc6 2.3.2.ds1-18 GNU C Library: Shared libraries an ii libpcap0.8 0.8.3-5 System interface for user-level pa ii libssl0.9.7 0.9.7e-2 SSL shared libraries -- no debconf information
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--- Begin Message ---man page clarifications wrt. IPv6 keywords were made in libpcap 1.3 and subsequent releases, we can close this one.
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