Raspberry Pi Wireless Router

RaspberryPi can be used in many ways. I will share my experience with you.

As a wireless router, we need to provide dhcp and Wireless AP capabilities through the isc-dhcp-server and hostapd software, forwarding between NICS is directly implemented through iptables defining nat rules.

Install dhcp and ap hotspot services

apt-get install isc-dhcp-serverapt-get install hostapd

Modify/etc/network/interfaces

Add/etc/dhcp/dhcpd. conf

Modify/etc/hostapd. conf

Enable the NIC forwarding capability of the kernel and set the/etc/sysctl. conf

net.ipv4.ip_forward=1

.

Modify the nat rules of iptables

iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE

Add Rules to auto start Mode

iptables-save > /root/nat.rule

New/etc/network/if-pre-up.d/iptables

#!/bin/bash/sbin/iptables-restore < /root/nat.rule 

Or write the rule statement directly into the file.

If your hostapd cannot work properly, it should be hostapd does not support your Nic chip, download: https://github.com/cnsworder/RTL8188-hostapd/archive/master.zip

You can directly compile on raspberrypi (the compilation speed is really slow)

cd hostapdmake;make install

Modify the hostapd configuration file.

I saw the hot spot of Shumei School.