因為在當(dāng)?shù)氐腁DSL是動態(tài)網(wǎng)關(guān),而且光纖每天早上到凌晨12點斷線,所以配合一條家用的ADSL線路來通宵營運,我簡單設(shè)計了一個方案,每15秒自動檢查一次ADSL網(wǎng)關(guān)是否與路由表里的符合,做了一個NETWATCH監(jiān)控光纖線路是否掉線,如果掉線了就切換成ADSL的網(wǎng)關(guān).

有不足的地方希望網(wǎng)友們斧正,僅此拋磚引玉.

動態(tài)網(wǎng)關(guān)腳本:


:global adsl "ADSL連接的名字"
:global new-ip [ /ip address get [/ip address find broa=0.0.0.0 int=$adsl] network ]
:global old-ip [ /ip route get [/ip route find comm="adsl"] gateway ]
:if ($new-ip != $old-ip) do={
      :log info [/ip route set [/ip route find comm="adsl"] gateway=$new-ip]
      :log info "〖ADSL網(wǎng)關(guān)修改完畢〗"
  }

cableup腳本:
/ip route set [/ip route find comm="cable"] disable=no
/ip route set [/ip route find comm="adsl"] disable=yes

cabledown腳本:
/ip route set [/ip route find comm="cable"] disable=yes
/ip route set [/ip route find comm="adsl"] disable=no

以上標(biāo)記的紅字均可根據(jù)你的實際情況進行替換.

光纖和ADSL實現(xiàn)線路切換的原理是,當(dāng)光纖掉線以后,自動禁用光纖的路由,激活A(yù)DSL路由(動態(tài)網(wǎng)關(guān)腳本會15秒自動檢測).當(dāng)光纖恢復(fù)以后,則規(guī)則反之執(zhí)行.