#!/bin/sh ################################################################################ ## ## ## Copyright (c) International Business Machines Corp., 2005 ## ## ## ## 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ## ## ## ## ## ################################################################################ # # File: # check_icmpv4_connectivity # # Description: # Check the ICMPv4 connectivity from a interface to an IPv4 address # # Arguments: # $1: source interface name # $2: destination IPv4 address # # Returns: # 0: connectivity is good # 1: connectivity is someting wrong # # Author: # Mitsuru Chinen # # History: # Oct 19 2005 - Created (Mitsuru Chinen) # #----------------------------------------------------------------------- #Uncomment line below for debug output. #trace_logic=${trace_logic:-"set -x"} $trace_logic # The max number of ICMP echo request PING_MAX=10 # Check the arguments if [ $# -ne 2 ]; then echo "Usage: $0 source_interface_name destionation_ipv4_address" >&2 exit 1 fi src_ifname=$1 dst_ipv4addr=$2 cnt=0 while [ $cnt -lt $PING_MAX ]; do cnt=`expr $cnt + 1` ping -I $src_ifname -c 1 $dst_ipv4addr -w 1 > /dev/null 2>&1 if [ $? -eq 0 ]; then exit 0 fi sleep 1 done exit 1