Hi,
On Tue, Jan 31, 2017 at 02:04:39PM +0100, David Schweikert wrote:
> Thanks Axel for testing 3.16-rc1!
I'll probably upload 3.16-rc2 to Debian Experimental in the next few
days, too.
> I have now published fping 3.16-rc2 with a very big change: the fping
> and fping6 binaries are now united into a single binary, as modern
> IPv6-enabled tools should be. There are now additional options '-4' and
> '-6' to force IPv4-only or IPv6-only mode.
Nice!
Haven't tried it yet, so a few curious questions:
1) Can fping now ping mixed IPv4 and IPv6 addresses in the same
process?
If so, I have a feature request on that topic (because the same issue
already annoys me with oping :-):
Can you add an option (e.g. -0 or -5) which pings both, A and AAAA
record (as if both IP addresses were given) if a host has both, A and
AAAA record? Or maybe that should be even the default instead of IPv6?
Example:
→ host www.ethz.ch
www.ethz.ch. has IPv4 address 129.132.19.216
www.ethz.ch. has IPv6 address 2001:67c:10ec:4380::216
→ fping -5 www.ethz.ch
www.ethz.ch/129.132.19.216 is alive
www.ethz.ch/2001:67c:10ec:4380::216 is alive
On the other hand that would probably imply that if an host returns
more than one A or AAAA record, both should be pinged:
→ host foobar.weebly.com
foobar.weebly.com. is an alias for pages-wildcard.weebly.com.
pages-wildcard.weebly.com. has IPv4 address 199.34.228.53
pages-wildcard.weebly.com. has IPv4 address 199.34.228.54
Currently, fping (3.15) works as follows:
→ fping -A foobar.weebly.com
199.34.228.53 is alive
But what I'd find helpful is, if it would reply like this:
→ fping -A foobar.weebly.com
199.34.228.53 is alive
199.34.228.54 is alive
> If you need exact compatibility with old versions, you can:
> - compile fping with --disable-ipv6 (or use a wrapper, and call 'fping
> -4')
> - compile fping with --enable-ipv6 and rename it to fping6 (same as
> 'fping -6')
2) So "--enable-ipv6" implies "--disable-ipv4"? If so, that option
should probably be renamed to "--only-ipv6" or similar to be
unambiguous.
Kind regards, Axel
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