--- /dev/null
+fping 4.0 (2017-04-23)
+======================
+
+## Incompatible Changes
+
+##### fping and fping6 unification
+
+fping and fping6 are now unified into one binary. It means that, for example,
+doing 'fping google.com' is going to ping the IPv6 IP of google.com on
+IPv6-enabled hosts.
+
+If you need exact compatibility with old versions, you can configure and
+install fping twice: once for ipv4, and once for ipv6:
+
+ ./configure --disable-ipv6; make clean install
+ ./configure --disable-ipv4 --program-suffix=6; make clean install
+
+##### Option -n, not the same as -d anymore
+
+Option -n / --name is now doing a reverse-DNS lookups on host addresses,
+only if they are given as IP address, but not for hostnames. For example,
+if you write 'fping -n google.com', fping would previously do a
+forward-DNS lookup on google.com, and then a reverse-DNS lookup on the
+resolved IP address. Now, it is just going to keep the name 'google.com'.
+That same behavior can be achieved with the option -d / --rdns (which was
+previously an alias for -n).
+
+ fping<4.0 fping>=4.0
+ fping -n NAME NAME->IP->IPNAME NAME
+ fping -d NAME NAME->IP->IPNAME NAME->IP->IPNAME
+
+##### Discarding of late packets
+
+fping will now discard replies, if they arrive after the defined timeout
+for reply packets, specified with -t. This change is relevant only for the
+count and loop modes, where the measured times should be now more
+consistent (see github issue #32 for details).
+
+To prevent loosing reply packets because of this change, the default
+timeout in count and loop modes is now automatically adjusted to the
+period interval (up to 2000 ms), but it can be overriden with the -t
+option. The default timeout for non-loop/count modes remains 500 ms.
+
+##### No restrictions by default
+
+fping will not enforce -i >= 1 and -p >= 10 anymore, except if you
+'./configure --enable-safe-limits'.
+
+The reasoning to removing the restrictions by default, is that users can
+clog the network with other tools anyway, and these restrictions are
+sometimes getting in the way (for example if you try to ping a lot of
+hosts).
+
+##### Default interval (-i) changed from 25ms to 10ms
+
+The default minimum interval between ping probes has been changed from
+25ms to 10ms. The reason is that 25ms is very high, considering today's
+fast networks: it generates at most 31 kbps of traffic (for IPv4 and
+default payload size).
+
+## New features
+
+- Unified 'fping' and 'fping6' into one binary (#80)
+- Long option names for all options
+- IPv6 enabled by default
+- New option -4 to force IPv4
+- New option -6 to force IPv6
+- Keep original name if a hostname is given with -n/--name
+- Option -d/--rdns now always does a rdns-lookup, even for names, as '-n' was doing until now
+- Enforce -t timeout on reply packets, by discarding late packets (#32)
+- Auto-adjust timeout for -c/-C/-l mode to value of -p
+
+## Bugfixes and other changes
+
+- -i/-p restrictions disabled by default (enable with --enable-safe-limits)
+- Default interval -i changed from 25ms to 10ms
+- Fix compatibility issue with GNU Hurd
+- A C99 compiler is now required
+- Option parsing with optparse (https://github.com/skeeto/optparse). Thanks Christopher Wellons!
+- New changelog file format
+++ /dev/null
-fping 3 README
---------------
-fping is a program to send ICMP echo probes to network hosts, similar to ping,
-but much better performing when pinging multiple hosts. fping has a long long
-story: Roland Schemers did publish a first version of it in 1992 and it has
-established itself since then as a standard tool.
-
-Current maintainer:
- David Schweikert <david@schweikert.ch>
-
-Website:
- http://fping.org/
-
-Mailing-list:
- https://groups.google.com/group/fping-users
-
-
-Installation
-------------
-If you want to install fping from source, proceed as follows:
-
-0. Run ./autogen.sh
- (only if you got the source from github)
-
-1. Run ./configure with the correct arguments
- (see: ./configure --help)
-
-2. Run make; make install
-
-3. Make fping either setuid, or, if under Linux:
-
- sudo setcap cap_net_raw+ep fping
-
-4. Have a look at the fping(8) manual for usage help
- (fping -h will also give a minimal help output)
-
-
-IPv6 support
-------------
-You can can compile fping with support for IPv6 addresses. A separate binary
-is used for that, called fping6. To build it, use ./configure --enable-ipv6
-(possibly combined with --enable-ipv4 to also build fping for IPv4). E.g.:
-
- # ./configure --prefix=/usr/local --enable-ipv4 --enable-ipv6
- # make
- # make install
- # sudo setcap cap_net_raw+ep /usr/local/bin/fping*
-
-
-Credits
--------
-Original author: Roland Schemers (schemers@stanford.edu)
-Previous maintainer: RL "Bob" Morgan (morgan@stanford.edu)
-Initial IPv6 Support: Jeroen Massar (jeroen@unfix.org / jeroen@ipng.nl)
-Other contributors: see ChangeLog
-2017-02-13 David Schweikert <david@schweikert.ch>
- * Version 4.0-rc3
-
- * INCOMPATIBILE CHANGE: fping and fping6 unification
-
- fping and fping6 are now unified into one binary. It means that, for
- example, doing 'fping google.com' is going to ping the IPv6 IP of
- google.com on IPv6-enabled hosts.
-
- If you need exact compatibility with old versions, you can configure and
- install fping twice: once for ipv4, and once for ipv6:
- - ./configure --disable-ipv6; make clean install
- - ./configure --disable-ipv4 --program-suffix=6; make clean install
-
- * INCOMPATIBILE CHANGE: -n option, not the same as -d anymore
-
- Option -n / --name is now doing a reverse-DNS lookups on host addresses,
- only they are given as IP address, but not for hostnames. For example, if
- you write 'fping -n google.com', fping would previously do a forward-DNS
- lookup on google.com, and then a reverse-DNS lookup on the resolved IP
- address. Now, it is just going to keep the name 'google.com'. That same
- behavior can be achieved with the option -d / --rdns (which was previously
- an alias for -n).
-
- fping<4.0 fping>=4.0
- fping -n NAME NAME->IP->IPNAME NAME
- fping -d NAME NAME->IP->IPNAME NAME->IP->IPNAME
-
- * INCOMPATIBILE CHANGE: discard late packets
-
- fping will now discard replies, if they arrive after the defined timeout
- for reply packets, specified with -t. This change is relevant only for the
- count and loop modes, where the measured times should be now more
- consistent (see github issue #32 for details).
-
- To prevent loosing reply packets because of this change, the default
- timeout in count and loop modes is now automatically adjusted to the
- period interval (up to 2000 ms), but it can be overriden with the -t
- option. The default timeout for non-loop/count modes remains 500 ms.
-
- * INCOMPATIBLE CHANGE: no restrictions by default
-
- fping will not enforce -i >= 1 and -p >= 10 anymore, except if you
- './configure --enable-safe-limits'.
-
- The reasoning to removing the restrictions by default, is that users can
- clog the network with other tools anyway, and these restrictions are
- sometimes getting in the way (for example if you try to ping a lot of
- hosts).
-
- * INCOMPATIBLE CHANGE: default interval (-i) changed from 25ms to 10ms
-
- The default minimum interval between ping probes has been changed from
- 25ms to 10ms. The reason is that 25ms is very high, considering today's
- fast networks: it generates at most 31 kbps of traffic (for IPv4 and
- default payload size).
-
- * (feature) Unified 'fping' and 'fping6' into one binary (#80)
- * (feature) Long option names for all options
- * (feature) --enable-ipv6 is now default
- * (feature) New option -4 to force IPv4
- * (feature) New option -6 to force IPv6
- * (feature) Keep original name if a hostname is given with -n/--name
- * (feature) Option -d/--rdns now always does a rdns-lookup, even for names
- (name->IP->name), as '-n' was doing until now
- * (feature) Enforce -t timeout on reply packets, by discarding late packets (#32)
- * (feature) Auto-adjust timeout for -c/-C/-l mode to value of -p
- * (feature) -i/-p restrictions only enforced with ./configure --enable-safe-limits
- * (feature) Default interval -i changed from 25ms to 10ms
- * (bugfix) Fix compatibility issue with GNU Hurd
- * (other) A C99 compiler is now required
- * (other) Option parsing with optparse (https://github.com/skeeto/optparse)
- Thanks Christopher Wellons!
-
2017-02-09 David Schweikert <david@schweikert.ch>
* Version 3.16
* (feature) Support kernel-timestamping of received packets (#46)
projects / fping.git / commitdiff