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Editing File: /etc/sysconfig/network-scripts/ifdown-tunnel

#!/bin/bash
# Copyright (C) 1996-2006 Red Hat, Inc. all rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2,
# as published by the Free Software Foundation.
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

# Thanks to:
#  - Razvan Corneliu C.R. Vilt <razvan.vilt@linux360.ro>
#  - Aaron Hope <aaron.hope@unh.edu>
#  - Sean Millichamp <sean@enertronllc.com>
# for providing the scripts this one is based on

. /etc/init.d/functions

cd /etc/sysconfig/network-scripts
. ./network-functions

[ -f ../network ] && . ../network

CONFIG=$1
need_config "$CONFIG"
source_config

# Generic tunnel devices are not supported here
if [ "$DEVICE" = gre0 -o "$DEVICE" = tunl0 -o "$DEVICE" = ip6tnl0 ]; then
    net_log $"Device '$DEVICE' isn't supported as a valid GRE device name."
    exit 1
fi

check_device_down "$DEVICE" && exit 0

/sbin/ip link set dev "$DEVICE" down
/sbin/ip tunnel del "$DEVICE"

exec /etc/sysconfig/network-scripts/ifdown-post "$CONFIG"

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