snull驱动环境搭建与测试分析

Here are possible values for the network numbers. Once you put these lines in /etc/networks, you can call your networks by name.

The values were chosen from the range of numbers reserved for private use.

snullnet0    192.168.0.0
snullnet1    192.168.1.0

The following are possible host numbers to put into /etc/hosts:
192.168.0.1    local0
192.168.0.2    remote0
192.168.1.2    local1

192.168.1.1    remote1

编译snull

执行脚本snull_load

#!/bin/sh

export PATH=/sbin:/bin

# Use a pathname, as new modutils don't look in the current dir by default
insmod ./snull.ko $*
ifconfig sn0 local0
ifconfig sn1 local1

执行ifconfig可以得到如下结果

sn0       Link encap:Ethernet  HWaddr 00:53:4e:55:4c:30  
          inet addr:192.168.0.1  Bcast:19