Linux_ network services _DHCP_ superscope configuration of the second segment, the test is not normally obtains an IP address
This article only to take notes, self-study notes
Reference video do experiments [DHCP], [superscope configuration], assign an IP address two segments of
Server, modify the
/etc/dhcp/dhcpd.conf file
shared-network 0-11 {
subnet 10.0.0.0 netmask 255.255.255.0 {
option routers 10.0.0.11;
range 10.0.0.16 10.0.0.16;
}
subnet 10.0.11.0 netmask 255.255.255.0 {
option routers 10.0.11.11;
range 10.0.11.220 10.0.11.230;
}
Segment 1
10.0.0.0
Distribution range
10.0.0.16-10.0.0.16 # For testing, where a network segment allocated an IP
Segment 2
10.0.11.0
Distribution range
10.0.11.220-10.0.11.230
Testing of two clients
Setup used, the [] User DHCP opened, and then perform [ifdown eth0; ifup eth0]
After the client 1, test, obtain IP
10.0.0.16
Client 2, after the test, has been unable to obtain an IP address network segment 2
The acquisition is [10.0.0.120]
This is clearly not the test results we need, back to the server, view the configuration file] [/etc/dhcp/dhcpd.conf
Discovery, set up the mac address binding IP settings (had never thought of this period, also repeatedly watched the video, and then I think this stuff),
[The main reason is to do the experiment mac address binding IP video inside before, back when doing superscopes experiment, dhcp.conf file is re-cp /usr/share/doc/dhcp-4.1.1/dhcpd.conf.sample file】
我本地测试的时候，没有重新cp，直接使用上一次的配置文件。这里需要将mac地址绑定IP的配置注释（或删除即可）
错误原因：设置了mac绑定IP，正好实验网段2的客户端的mac地址就是这个
解决方案：将之前mac地址绑定IP的配置注释，并重启 service dhcpd restart
客户端2，正确获取到网段2的IP地址
