the-tcpdump-group / tcpdump-htdocs Goto Github PK

I was reading the man and was wondering why I had an error at execution :
tcpdump: invalid number of output files -z

There's a 'count' missing from the manpage at the -w parameter.

I'm expecting to read :

-W count
Used in conjunction with the -C option, this will limit the number of files created to the specified number, and begin overwriting ...

But we read :

-W
Used in conjunction with the -C option, this will limit the number of files created to the specified number, and begin overwriting ...

Add an index.html to the /manpages directory.
Some servers have directory indexing on, but we shouldn't depend upon that.

In a bout of funny-to-me irony, it looks like one cannot safely download the TCPdump distribution (there's no HTTPS site). At the moment, https://www.tcpdump.org just goes to wireshark's distribution page.

Seems like right now the only way to securely get the source is via github at the moment.

Thanks so much for your work.

Where is the man2html command used in regen_manpages.sh ?
Not all man2html commands have the same output.

the changelog url provided on tcpdump.org for the libpcap 1.7.4 release contains no changelog for 1.7.4 or any instance of the string '1.7.4'. am i confused or is this an error?

http://www.tcpdump.org/libpcap-changes.txt

2012-01-01 20:09:52 -0500 pcap/pcap.html
2012-01-01 20:09:52 -0500 pcap/pcap.txt
They haven't been updated since the first commit.
Inside date: March 2004.

Should we remove them ?

Hello,

According to

frame type code is formed by (b17<<2 | b16 <<1 | b12 ), something like:

code = (dsa_header[1] & 0x3) | ((dsa_header[2] >> 4) & 1);

But the Linux driver code uses (b18<<2 | b17 <<1 | b12 ) or:

code = (dsa_header[1] & 0x6) | ((dsa_header[2] >> 4) & 1);

See: https://github.com/torvalds/linux/blob/655fedaad36c0b31a6f6cb8f469b739b2359d74f/net/dsa/tag_dsa.c#L207

I could confirm that b17b16b12 does not match the IGMP code (0x02) the chip sent (the only one I got) while b18b17b12 does match. I cannot confirm that b18 and b12 are correct as I didn't have other command samples but IGMP but b17 is the second most significant bit.