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README
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# sngrep [](https://travis-ci.org/irontec/sngrep)
sngrep is a tool for displaying SIP calls message flows from terminal.
It supports live capture to display realtime SIP packets and can also be used
as PCAP viewer.
[Some screenshots of sngrep](https://github.com/irontec/sngrep/wiki/Screenshots)
## Installing
### Binaries
* [Debian / Ubuntu](https://github.com/irontec/sngrep/wiki/Installing-Binaries#debian--ubuntu)
* [CentOS / RedHat / Fedora](https://github.com/irontec/sngrep/wiki/Installing-Binaries#centos--fedora--rhel)
* [Alpine Linux](https://github.com/irontec/sngrep/wiki/Installing-Binaries#alpine-linux)
* [Gentoo](https://github.com/irontec/sngrep/wiki/Installing-Binaries#gentoo)
* [Arch](https://github.com/irontec/sngrep/wiki/Installing-Binaries#arch)
* [OSX](https://github.com/irontec/sngrep/wiki/Installing-Binaries#osx)
* [OpenWRT/LEDE](https://github.com/irontec/sngrep/wiki/Installing-Binaries#openwrtlede)
### Building from sources
Prerequisites
- libncurses5 - for UI, windows, panels.
- libpcap - for capturing packets.
- libssl - (optional) for TLS transport decrypt using OpenSSL and libcrypt
- gnutls - (optional) for TLS transport decrypt using GnuTLS and libgcrypt
- libncursesw5 - (optional) for UI, windows, panels (wide-character support)
- libpcre - (optional) for Perl Compatible regular expressions
On most systems the commands to build will be the standard autotools procedure:
./bootstrap.sh
./configure
make
make install (as root)
You can pass following flags to ./configure to enable some features
| configure flag | Feature |
| ------------- | ------------- |
| `--with-openssl` | Adds OpenSSL support to parse TLS captured messages (req. libssl) |
| `--with-gnutls` | Adds GnuTLS support to parse TLS captured messages (req. gnutls) |
| `--with-pcre`| Adds Perl Compatible regular expressions support in regexp fields |
| `--enable-unicode` | Adds Ncurses UTF-8/Unicode support (req. libncursesw5) |
| `--enable-ipv6` | Enable IPv6 packet capture support. |
| `--enable-eep` | Enable EEP packet send/receive support. |
You can find [detailed instructions for some distributions](https://github.com/irontec/sngrep/wiki/Building) on wiki.
## Usage
See `--help` for a list of available flags and their syntax
For example, sngrep can be used to view SIP packets from a pcap file, also applying filters
sngrep -I file.pcap host 192.168.1.1 and port 5060
or live capturing, saving packets to a new file
sngrep -d eth0 -O save.pcap port 5060 and udp
## Configuration
You can configure some options using [sngreprc](https://github.com/irontec/sngrep/wiki/Configuration) file
## Frequent Asked Questions
Any feedback, request or question are welcomed at [#sngrep](https://webchat.freenode.net/?channels=sngrep) channel at irc.freenode.net
See FAQ on [Github Wiki](https://github.com/irontec/sngrep/wiki#frequent-asked-questions)
## License
sngrep - SIP Messages flow viewer
Copyright (C) 2013-2016 Irontec S.L.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.