diff options
| -rw-r--r-- | CHANGES | 3 | ||||
| -rwxr-xr-x | contrib/scripts/sip_nat_settings | 72 |
2 files changed, 75 insertions, 0 deletions
@@ -114,6 +114,9 @@ Miscellaneous timezones, especially if those daylight savings time ranges vary from your machine's native timezone. See GotoIfTime, ExecIfTime, IFTIME(), and timed includes. + * The contrib/scripts/ directory now has a script called sip_nat_settings that will + give you the correct output for an asterisk box behind nat. It will give you the + externhost and localnet settings. Asterisk Manager Interface -------------------------- diff --git a/contrib/scripts/sip_nat_settings b/contrib/scripts/sip_nat_settings new file mode 100755 index 000000000..09e0ac858 --- /dev/null +++ b/contrib/scripts/sip_nat_settings @@ -0,0 +1,72 @@ +#!/bin/sh + +# sip_nat_settings: generate NAT settings for sip.conf of an Asterisk system +# that is behind a NAT router. +# +# This is a script to generate sane defaults for externip and localnet +# of sip.conf. The output should be included in the [general] section of +# sip.conf . +# +# Multiple network interfaces: If you have multiple network interfaces, +# this script will generate a 'localnet' line for each of them that has a +# broadcast (ipv4) address, except the loopback interface (lo). You can +# later rem-out all of those you don't need. +# +# Alternatively, provide a network interface as a parameter an a localnet +# line will only be generated for its network. +# +# Copyright (C) 2005 by Tzafrir Cohen <tzafrir.cohen@xorcom.com> +# +# 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 2 of the License, or +# (at your option) any later version. +# +# 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, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +WGET=`which wget` +FETCH=`which fetch` +if [ -x ${WGET} ]; then + externip=`${WGET} -q -O- http://www.whatismyip.org` +elif [ -x ${FETCH} ]; then + externip=`${FETCH} -q -o - http://www.whatismyip.org` +else + echo "no binary found to contact http://www.whatismyip.org" + exit 1 +fi + +# optional parameter: network interface to use. By default: none. +IFACE="$1" + +OS=`uname -s` +case "$OS" in +Linux) + echo "externip = $externip" + /sbin/ifconfig $IFACE | grep 'inet addr:' | grep Bcast \ + | sed -e 's/^.*Bcast:\([0-9.]*\)\s*Mask:\([0-9.]*\)\s*$/localnet = \1\/\2/' + ;; +OpenBSD|FreeBSD) + if [ "${OS}" = "FreeBSD" ]; then + VER=`uname -r | cut -d . -f 1` + if [ ${VER} -lt 7 ]; then + echo "Unsupported OS" + exit 1 + fi + fi + echo "externip = $externip" + ip=`/sbin/ifconfig $IFACE | awk '/\tinet .* broadcast/{print $6}'` + x=`/sbin/ifconfig $IFACE | awk '/\tinet .* broadcast/{print $4}'` + printf 'localnet = %s/%u.%u.%u.%u\n' $ip $(($x>>24&0xff)) $(($x>>16&0xff)) $(($x>>8&0xff)) $(($x&0xff)) + ;; +*) + echo >&2 "$0: Unsupported OS $OS" + exit 1 + ;; +esac |