找到一个能把黑辉变成路由的东西。请高手来看看。
# Script to enable port forwarding and IP Masquerading, to share# the primary internet connection to the second port of DS1512+
action=$1
shift;
local INT_IFACE="eth1"
local IFCFG_FILE="/etc/sysconfig/network-scripts/ifcfg-${INT_IFACE}"
local DHCPD_CONF="/etc/dhcpd/dhcpd.conf"
local RULES_NAT="/etc/firewall_rules_nat.dump"
logerr() { #
local TAG="nat_router"
[ ! -z $action ] && TAG="${TAG} (${action})"
logger -p user.err -t "${TAG}" "$@"
}
# Guard to prevent execution if NAT is not supposed to be enabled
[ -e $IFCFG_FILE -a -e ${DHCPD_CONF} ] || { logerr "Missing config files"; exit 1; }
local IPADDR=`get_key_value ${IFCFG_FILE} IPADDR`
local NETMASK=`get_key_value ${IFCFG_FILE} NETMASK`
local IS_ROUTER=`grep option:router ${DHCPD_CONF} | grep -c ${IPADDR}`
[ ${IS_ROUTER} -eq 0 ] && { logerr "Routing mode not enabled on ${INT_IFACE}"; exit 1; }
# Calculate local network CIDR
local CIDR_PREFIX=`ipcalc -p ${IPADDR} ${NETMASK} | cut -d'=' -f2`
local CIDR_IP=`ipcalc -n ${IPADDR} ${NETMASK} | cut -d'=' -f2`
local CIDR="${CIDR_IP}/${CIDR_PREFIX}"
setup_nat() {
# Enable port forwarding, in case not enabled by default
echo 1 > /proc/sys/net/ipv4/ip_forward
# Load the required modules
/usr/syno/etc.defaults/rc.d/S01iptables.sh load_nat_mod forwarding_test
}
load_nat_rules() {
if [ -e ${RULES_NAT} ]; then
/sbin/iptables-restore -n < ${RULES_NAT} &> /dev/null
if [ $? -eq 0 ]; then
logerr "NAT rules loaded successfully"
else
logerr "Error loading NAT rules from: ${RULES_NAT}"
exit 1;
fi
else
logerr "No NAT rules found"
fi
# Define the masquerading rule
/sbin/iptables -t nat -D POSTROUTING -s ${CIDR} -j MASQUERADE &> /dev/null # don't add twice
/sbin/iptables -t nat -A POSTROUTING -s ${CIDR} -j MASQUERADE
}
save_nat_rules() {
local TMP_RULES="/tmp/firewall_rules_nat.tmp"
echo "# $(date)" > ${TMP_RULES}
echo "*nat" >> ${TMP_RULES}
/sbin/iptables-save -t nat | grep "\-j DNAT" | uniq >> ${TMP_RULES}
echo "COMMIT" >> ${TMP_RULES}
mv -f ${TMP_RULES} ${RULES_NAT}
logerr "NAT rules saved to ${RULES_NAT}"
}
clear_nat_rules() {
/sbin/iptables-save -t nat |grep "\-j DNAT" | sed 's/^-A /-D /g' | while read line; do
if [ ! -z $line ]; then
/sbin/iptables -t nat $line &> /dev/null
fi
done
/sbin/iptables -t nat -D POSTROUTING -s ${CIDR} -j MASQUERADE &> /dev/null
}
case "$action" in
start)
setup_nat
load_nat_rules
;;
stop)
save_nat_rules
clear_nat_rules
;;
restart)
save_nat_rules
clear_nat_rules
load_nat_rules
;;
*)
echo "Usage: $0 "
;;
esac
exit 0
这东西怎么用啊。请高手来看看。这样的话。我们又可以省点投资了。
……以为是教程!! 如果能添加路由功能就牛了,再插个USB无线网卡做AP就完美了。 本帖最后由 sancome 于 2014-5-5 10:26 编辑
我写了个教程:http://www.nas1.cn/thread-83885-1-1.html sancome大 又一力作 支持了······· 路过看看,学习一下。
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