Re: is there BUG in tcpdump Fwd: help to build tcpdump with ipv6

["Steve Bonds" <pow7yec02 () sneakemail com>]

Shakan:

I hope I don't give any offense at this suggestion, but you are quite
likely to get a much better response to your questions if you review Eric
Raymond's "How to Ask Questions the Smart Way" 
(http://www.catb.org/~esr/faqs/smart-questions.html) and follow his
suggestions.

More below...

On Fri, 2 May 2003, shakan shakan-at-softhome.net |TCPdump Workers| wrote:

> Though the may be bug in hp-ux, how it searches the the ipv6 stack
> type as linux related one.

> i.e
> # ./configure --enable-ipv6
> :
> checking whether to enable ipv6... yes
> checking ipv6 stack type... linux-libinet6
> You do not have inet6 library, using libc
> checking for library containing getaddrinfo... none required
> checking getaddrinfo bug... buggy
> Fatal: You must get working getaddrinfo() function.
>        or you can specify "--disable-ipv6".
>
> I'm using 
> HP-UX 11.23
> libpcap-0.7.1
> tcpdump-3.7.1

It looks like the "configure" script is protecting you from your operating
system.  Writing software for HP's network APIs is often tricky, and
you're definitely working on the leading edge if you're using IPv6.  That
message looks like a pretty clear indication that tcpdump does not support
IPv6 on HPUX 11.23.

An alternative would be to use HP's "nettl" program to do your packet
captures.  According to this HP document:

http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/displayProductInfo.pl?productNumber=T1306AA

nettl supports IPv6.

For information on how to use it, refer to the nettl man page (search on
http://docs.hp.com if you can't find it) or if you're trying to solve a
problem using network packet capture, the HP response center can walk you
through using it.

  -- Steve


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