2023-02-23 21:42:24 +08:00
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#!/bin/bash
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2023-02-23 21:58:44 +08:00
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# 该脚本将创建一个名为vmbr0的虚拟网桥，并将其记录到配置文件中。它会自动获取本地IPV4地址、子网掩码和网关，并将其添加到vmbr0配置中。
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2023-02-23 21:42:24 +08:00
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# 设置虚拟网桥名称
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BRIDGE_NAME="vmbr0"
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# 获取本地IPv4地址和子网掩码
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IP_ADDR=$(ip route get 8.8.8.8 | head -1 | awk '{print $7}')
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SUBNET_MASK=$(ip route get 8.8.8.8 | head -1 | awk '{print $1}' | awk -F"/" '{print $2}')
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# 计算网络地址
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IFS='.' read -ra IP_ARR <<< "$IP_ADDR"
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IFS='.' read -ra MASK_ARR <<< "$SUBNET_MASK"
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NET_ADDR=""
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for ((i=0; i<4; i++)); do
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2023-02-23 21:47:22 +08:00
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NET_ADDR="${NET_ADDR}$((${IP_ARR[$i]} & ${MASK_ARR[$i]}))."
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2023-02-23 21:42:24 +08:00
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done
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NET_ADDR=${NET_ADDR::-1}
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# 获取网关地址
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GATEWAY=$(ip route | awk '/default/ {print $3}')
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2023-02-23 21:58:44 +08:00
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# 创建虚拟网桥的配置文件
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echo "# This file is generated by create_vmbr0.sh script" > /tmp/$BRIDGE_NAME.conf
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echo "auto $BRIDGE_NAME" >> /tmp/$BRIDGE_NAME.conf
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echo "iface $BRIDGE_NAME inet static" >> /tmp/$BRIDGE_NAME.conf
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echo " address $IP_ADDR" >> /tmp/$BRIDGE_NAME.conf
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echo " netmask $SUBNET_MASK" >> /tmp/$BRIDGE_NAME.conf
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echo " gateway $GATEWAY" >> /tmp/$BRIDGE_NAME.conf
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echo " bridge_ports none" >> /tmp/$BRIDGE_NAME.conf
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echo " bridge_vlan_aware 1" >> /tmp/$BRIDGE_NAME.conf
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echo " vlan_ids 100" >> /tmp/$BRIDGE_NAME.conf
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# 将配置文件移动到网络接口配置目录
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mv /tmp/$BRIDGE_NAME.conf /etc/network/interfaces.d/$BRIDGE_NAME.conf
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