OpenWrt配置单线多播的例子

vi /etc/config/network

config interface 'loopback'
    option ifname 'lo'
    option proto 'static'
    option ipaddr '127.0.0.1'
    option netmask '255.0.0.0'

config interface 'lan'
    option ifname 'eth0'
    option type 'bridge'
    option proto 'static'
    option ipaddr '192.168.1.1'
    option netmask '255.255.255.0'

config interface 'wan'
    option ifname 'eth1'
    option _orig_ifname 'eth1'
    option _orig_bridge 'false'
    option proto 'pppoe'
    option username 'xxxxxxxxxx'
    option password '123456'

config interface 'wan1'  #这步起都是模拟出来的WAN口
    option ifname 'vth1'
    option _orig_ifname 'eth1' #WAN口网卡
    option _orig_bridge 'false'
    option proto 'pppoe'
    option username 'xxxxxxxxx'
    option password '123456'

config interface 'wan2'
    option ifname 'vth2'
    option _orig_ifname 'eth1'
    option _orig_bridge 'false'
    option proto 'pppoe'
    option username 'xxxxxxxx'
    option password '123456'

config interface 'wan3'
    option ifname 'vth3'
    option _orig_ifname 'eth1'
    option _orig_bridge 'false'
    option proto 'pppoe'
    option username 'xxxxxxxx'
    option password '123456'

config switch
    option name 'eth0'
    option reset '1'
    option enable_vlan '1'

config switch_vlan
    option device 'eth0'
    option vlan '1'
    option ports '0 1 2 3 4'

#!/bin/sh

#number是重拔次数
#n是几拔
#ok是拔上几次后退出拔号
#wait time

number=10000
n=4
ok=2 #这个可以任意修改！我这里只修改2拨后停止！
wait=20


   for i in $( seq 1 $(($n-1)))
   do
        interface=wan$i
        ifname=vth$i
        
        if [ $(ip link | grep " ${ifname}@eth1:" | wc -l) == "0" ] ;
        then
            macfac=$(ifconfig | grep eth1 | tr -s " " | cut -d " " -f5 | cut -b 1-8)
            mac="$macfac:"$(md5sum /proc/sys/kernel/random/uuid | sed 's/\(..\)/&:/g' | cut -b 1-8 | tr [a-f] [A-F])
            ip link add link eth1 $ifname type macvlan
            ifconfig $ifname hw ether $mac
            ifconfig $ifname up
            sleep 2
        else
            if [ $(ip link | grep " ${ifname}@eth1:" | grep "state UP " | wc -l) == "0" ] ;
            then
                ifup $interface
            
            fi 
        fi
   done    
   
   for q in $( seq 1 $number )
   do        
        echo
        echo ___________________________________________________
        echo 开始第$q次拔号...........
        killall -q -SIG pppd
        j=0
        sleep 2       
        echo 正开始并发拔号中.............

        # one line
        #取得wan口的账号和密码，用来多拨
        user=`uci get network.wan.username`
        pass=`uci get network.wan.password`

        for i in $( seq 0 $(($n-1)))
        do
          if [ "$i" == "0"  ] ;
          then
               interface=wan
                                                                ifname=eth1
          else
               interface=wan$i
                                                                ifname=vth$i
          fi

           # mul line
           #ifname=`uci get network.$interface.ifname`
           #user=`uci get network.$interface.username`
           #pass=`uci get network.$interface.password`
           #echo pppoe帐号:[$user]                pppoe密码:[$pass]        pppoe接口:[$ifname]

           /usr/sbin/pppd plugin rp-pppoe.so mtu 1492 mru 1492 nic-$ifname nopersist usepeerdns nodefaultroute user $user password $pass ipparam $interface ifname pppoe-$interface nodetach &
        done

        echo 正在并发拔号中.............
        echo 等待$wait秒.............
        sleep $wait
        
        j=$(ifconfig | grep pppoe-wan | wc -l)
        echo [$n]拔[$j]拔成功.....

        ! [ "$j" -ge "$ok" ] && echo 成功[$j]拔, 小于设定的[$ok]拔将重新拔号... 
        [ "$j" -ge "$ok" ] && echo 成功[$j]拔, 大于或等于设定的[$ok]退出拔号...   
        #[ "$j" -ge "$ok" ] && exit
        if [ "$j" -ge "$ok" ] ;
        then
           vias="" 
           for i in $( seq 0 $(($n-1)))
           do
              if [ "$i" == "0"  ] ;
              then
                  interface=wan
                  dev=eth1
              else
                  interface=wan$i
                  dev=vth$i
              fi
              if [ $(ifconfig | grep "pppoe-$interface " | wc -l) == "0" ] ;
              then
                     [ "$i" != "0" ] && ifdown $interface
              else
                                     wan_ifname="pppoe-${interface}"
                                     wan_ip=$(ip route list | grep 'src' | grep "${wan_ifname} " |  tr -s ' ' | cut -d ' ' -f9)
                                     vias="$vias nexthop via $wan_ip dev $wan_ifname weight 1 "
                        
                                     let "rt=100+$i"
                                     #./cprt main $rt
                                     ip route flush table $rt
                                     ip route add default via $wan_ip dev $wan_ifname table $rt
                                     #ip route add  table $rt default via $wan_gw dev $wan_ifname src $wan_ip
                                     #ip route add default dev $wan_ifname table $rt
                
                                                        
                                                                        ip route add table $rt to $(ip route | grep br-lan)
                                                                        
                                                            if [ $(iptables -t nat -vxnL POSTROUTING | grep -c " $wan_ifname ") == "0" ] ;
                                                            then
                                                                iptables -t raw -A PREROUTING -i $wan_ifname -j zone_wan_notrack
                                                                #iptables -t mangle -A zone_wan_MSSFIX -o $wan_ifname -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-
                                                                iptables -t nat -A PREROUTING -i $wan_ifname -j zone_wan_prerouting
                                                                iptables -t nat -A POSTROUTING -o $wan_ifname -j zone_wan_nat
                                                                iptables -t filter -A forward -i $wan_ifname -j zone_wan_forward
                                                                iptables -t filter -A input -i $wan_ifname -j zone_wan
                                                                iptables -t filter -A zone_wan_ACCEPT -o $wan_ifname -j ACCEPT
                                                                iptables -t filter -A zone_wan_ACCEPT -i $wan_ifname -j ACCEPT
                                                                iptables -t filter -A zone_wan_DROP -o $wan_ifname -j DROP
                                                                iptables -t filter -A zone_wan_DROP -i $wan_ifname -j DROP
                                                                iptables -t filter -A zone_wan_REJECT -o $wan_ifname -j reject
                                                                iptables -t filter -A zone_wan_REJECT -i $wan_ifname -j reject
                                                        
                                                            fi
                                                           iptables -A PREROUTING -t mangle -i $wan_ifname  -j MARK --set-mark $rt
                                                           iptables -t mangle -A zone_wan_MSSFIX -o $wan_ifname -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
                                                            
                                                           ip rule add fwmark $rt table $rt prio $rt 
    

              fi
              
            done
                     
          ip route del default           
          ip route add default scope global $vias 
                                  ip route flush cache
          ip route list
          route -n

          exit
       fi 
        
    done