{"id":129,"date":"2018-07-22T05:04:06","date_gmt":"2018-07-22T10:04:06","guid":{"rendered":"https:\/\/blog.qianyurui.com\/?p=129"},"modified":"2021-02-19T12:30:07","modified_gmt":"2021-02-19T20:30:07","slug":"use-raspberry-pi-as-router-with-pppoe","status":"publish","type":"post","link":"https:\/\/blog.qianyurui.com\/index.php\/2018\/07\/22\/use-raspberry-pi-as-router-with-pppoe\/","title":{"rendered":"Use Raspberry Pi as Router with PPPoE"},"content":{"rendered":"

\u4e2d\u6587\u7248\u5728\u8fd9\u91cc<\/a><\/p>\n

The router at my home has been troubled by the high temperature during summer days, and its performance has brought me headaches whenever I needed smooth network. Raspberry Pi is a robust mini-computer and I soon committed to the idea to turn a Raspi 3 into my new router. After 8-hour trial-and-error I finally managed to make it work on a PPPoE network and hence would like to share my experience. The following tutorial is largely based on\u00a0Turn a RaspBerryPi 3 into a WiFi router-hotspot<\/a>.<\/p>\n

The Raspi I used is a Raspberry Pi 3 Model B. I expect Model B+ and Zero W to work but I didn’t test. If you are using an older version of Raspi you might need a wifi dongle.<\/p>\n

First thing first, let’s make sure the Raspi can connect to the Internet with PPPoE. Download pppoeconf from here<\/a>, and install it with sudo dpkg -i pppoeconf_1.21_all.deb<\/code>. Now connect the Ethernet cable to Raspi and open pppoeconf with\u00a0sudo pppoeconf<\/code>. Follow the instruction and by the end you should be able to access the Internet.<\/p>\n

Now let’s set up DHCP. Feel free to change the parameters like IP address or DNS in the following code if you know what’s going on, otherwise you can safely copy&paste all the code here to proceed. Execute the following command<\/p>\n

sudo apt-get update\nsudo apt-get dist-upgrade\nsudo apt-get install hostapd isc-dhcp-server\nsudo nano \/etc\/dhcp\/dhcpd.conf<\/pre>\n
Comment these two lines:<\/p>\n
option domain-name \"example.org\";\noption domain-name-servers ns1.example.org, ns2.example.org;<\/pre>\n
Uncomment this line:<\/p>\n
#authoritative;<\/pre>\n
Copy and paste the following code to the end of the file:<\/p>\n
subnet 192.168.42.0 netmask 255.255.255.0 {\nrange 192.168.42.10 192.168.42.50;\noption broadcast-address 192.168.42.255;\noption routers 192.168.42.1;\ndefault-lease-time 600;\nmax-lease-time 7200;\noption domain-name \"local\";\noption domain-name-servers 8.8.8.8, 8.8.4.4;\n}<\/pre>\n
press ctrl+x to exit, y to save and enter to confirm.<\/p>\n
sudo nano \/etc\/default\/isc-dhcp-server<\/pre>\n
Change INTERFACES=”” to INTERFACES=”wlan0″. Save&exit.<\/p>\n
sudo ifdown wlan0\nsudo nano \/etc\/network\/interfaces<\/pre>\n
Add the following lines to the end:<\/p>\n
auto lo\niface lo inet loopback\niface eth0 inet dhcp\nallow-hotplug wlan0\niface wlan0 inet static\naddress 192.168.42.1\nnetmask 255.255.255.0\npost-up iw dev $IFACE set power_save off<\/pre>\n
Save&exit.<\/p>\n
Configure ip of the router:<\/p>\n
sudo ifconfig wlan0 192.168.42.1<\/pre>\n
DHCP setting is done. Time to handle wifi.<\/p>\n
sudo nano \/etc\/hostapd\/hostapd.conf<\/pre>\n
Add the following lines to the file:<\/p>\n
interface=wlan0\nssid=RaspiPoweredWifi #change to name of your wifi\nhw_mode=g\nchannel=6 #change to others if you know what you are doing\nmacaddr_acl=0\nauth_algs=1\nignore_broadcast_ssid=0\nwpa=2\nwpa_passphrase=12345678 #change to your wifi password\nwpa_key_mgmt=WPA-PSK\nwpa_pairwise=TKIP\nrsn_pairwise=CCMP<\/pre>\n
Save&exit. Now we can set up forwarding<\/p>\n
sudo nano \/etc\/sysctl.conf<\/pre>\n
Jump to the very end and add:<\/p>\n
net.ipv4.ip_forward=1<\/pre>\n
Save&exit.
\nSet up iptables:<\/p>\n
sudo sh -c \"echo 1 > \/proc\/sys\/net\/ipv4\/ip_forward\"\nsudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE\nsudo iptables -A FORWARD -i eth0 -o wlan0 -m state --state RELATED,ESTABLISHED -j ACCEPT\nsudo iptables -A FORWARD -i wlan0 -o eth0 -j ACCEPT<\/pre>\n
Add to startup:<\/p>\n
sudo sh -c \"iptables-save > \/etc\/iptables.ipv4.nat\"\nsudo nano \/etc\/network\/interfaces<\/pre>\n
Go to the end and add:<\/p>\n
up iptables-restore < \/etc\/iptables.ipv4.nat<\/pre>\n
Save&exit.
\nStart two services:<\/p>\n
sudo service hostapd start\nsudo service isc-dhcp-server start<\/pre>\n
Reboot. Mission accomplished.<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e2d\u6587\u7248\u5728\u8fd9\u91cc The router at my home has been troubled by the high temperature during summer days, and its performance has brought me headaches whenever I needed smooth network. Raspberry Pi is a robust mini-computer and I soon committed to the idea to turn a Raspi 3 into my new router. After 8-hour trial-and-error I finally … <\/p>\n
Continue reading “Use Raspberry Pi as Router with PPPoE”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-129","post","type-post","status-publish","format-standard","hentry","category-tech"],"_links":{"self":[{"href":"https:\/\/blog.qianyurui.com\/index.php\/wp-json\/wp\/v2\/posts\/129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.qianyurui.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.qianyurui.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.qianyurui.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.qianyurui.com\/index.php\/wp-json\/wp\/v2\/comments?post=129"}],"version-history":[{"count":6,"href":"https:\/\/blog.qianyurui.com\/index.php\/wp-json\/wp\/v2\/posts\/129\/revisions"}],"predecessor-version":[{"id":256,"href":"https:\/\/blog.qianyurui.com\/index.php\/wp-json\/wp\/v2\/posts\/129\/revisions\/256"}],"wp:attachment":[{"href":"https:\/\/blog.qianyurui.com\/index.php\/wp-json\/wp\/v2\/media?parent=129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.qianyurui.com\/index.php\/wp-json\/wp\/v2\/categories?post=129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.qianyurui.com\/index.php\/wp-json\/wp\/v2\/tags?post=129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}