脚本来源地址
    路由原理

    /script/single-router.sh

    1. #!/bin/sh
    3. # Author: fasion
    4. # Created time: 2020-10-16 08:28:12
    5. # Last Modified by: fasion
    6. # Last Modified time: 2020-12-10 08:45:42
    8. SELF_PATH=`realpath "$0"`
    9. SCRIPT_DIR_PATH=`dirname "$SELF_PATH"`
    11. source "$SCRIPT_DIR_PATH/nsvm-util.sh"
    13. create-host() {
    14.     name="$1"
    15.     network="$2"
    16.     iface="$3"
    17.     mac="$4"
    18.     ip="$5"
    19.     routes="$6"
    21.     create-node "$name"
    22.     disable-ipv6-for-nsvm "$name" || exit
    23.     connect-node-to-network "$name" "$network" "$iface" "$mac" "$ip"
    24.     add-routes-for-nsvm "$node" "$routes"
    25.     # exec-in-nsvm "$node" ip route add default via "$gw" || exit
    26. }
    28. #禁止IP V6
    29. echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6 || exit
    31. # 创建第一个交换机
    32. create-network net1 || exit 1
    33. # 创建一个节点，分别是名字/放在那个以太网下/网卡/mac/IP/路由
    34. # 这里不懂的是IP和路由
    35. # 实际的创建过程需要细看👀
    36. create-host ant net1 eth0 '1e:1f:84:08:d2:aa' 192.168.1.2/24 192.168.1.1:192.168.2.0/24 || exit
    37. create-host bee net1 eth0 'e6:04:b1:10:f1:bb' 192.168.1.3/24 192.168.1.1:192.168.2.0/24 || exit
    38. create-host cicada net1 eth0 'ce:ba:ec:ff:fd:cc' 192.168.1.4/24 192.168.1.1:192.168.2.0/24 || exit
    40. # 创建第二个交换机
    41. create-network net2 || exit 1
    43. create-host apple net2 eth0 'b6:f1:81:44:21:11' 192.168.2.2/24 192.168.2.1:192.168.1.0/24 || exit
    44. create-host banana net2 eth0 '22:5b:7c:b3:d6:22' 192.168.2.3/24 192.168.2.1:192.168.1.0/24 || exit
    46. # 创建路由器
    47. create-node router || exit
    48. disable-ipv6-for-nsvm router || exit
    49. # 添加路由条目
    50. connect-node-to-network router net1 eth1 'fa:1c:b2:d0:b0:01' 192.168.1.1/24 || exit
    51. connect-node-to-network router net2 eth2 'ee:21:30:4a:5a:02' 192.168.2.1/24 || exit
    53. echo 'press Ctrl-C to exit'
    54. # zsh
    55. cat