linux 多网卡确定

# 检查网卡配置文件
cat /etc/network/interfaces

# 手动配置IP地址
sudo ifconfig eth0 192.168.1.1 netmask 255.255.255.0 up
sudo ifconfig eth1 192.168.2.1 netmask 255.255.255.0 up

# 或者使用netplan配置
sudo nano /etc/netplan/01-netcfg.yaml
network:
  version: 2
  ethernets:
    eth0:
      addresses:
        - 192.168.1.1/24
    eth1:
      addresses:
        - 192.168.2.1/24
sudo netplan apply

# 使用tc工具进行流量控制
sudo tc qdisc add dev eth0 root handle 1: prio
sudo tc qdisc add dev eth1 root handle 1: prio

sudo tc filter add dev eth0 protocol ip parent 1: prio 1 u32 match ip dport 80 0xffff flowid 1:1
sudo tc filter add dev eth1 protocol ip parent 1: prio 1 u32 match ip dport 80 0xffff flowid 1:1

# 使用iptables进行网络隔离
sudo iptables -A FORWARD -i eth0 -o eth1 -j DROP
sudo iptables -A FORWARD -i eth1 -o eth0 -j DROP