How to create a PPPoE Server on Ubuntu? March 30,201 1 coder_commenter Leave a comment Go to comments
For one reason or another, I needed to setup a PPPoE Server on my Ubuntu machine. unfortunately almost all the guides found were talking about setting a PPPoE client connected to a PPPoE Server. so I spend a few days testing and trying out different deployments, until I finally found how to set it up from scratch. the below instructions will look similar to the guide I referenced, but there are some extra steps to ensure that your connection will be able to access Internet properly.
Step #1: Topology Setup
PC --- PPPoE Server (Ubuntu) --- Internet
You can add your typical cable modem and/or router into the mix. the main issue here is to ensure that your PPPoE Server can access the Internet without any problems. to verify this, just do a quick ping test to google.com or yahoo.com.
> ping http://www.google.com
PING www.l.google.com (74.125.155.103) 56*84) bytes of data.64 bytes from px-in-f103.1e100.net (74.125.155.103): icmp_req=1 ttl=52 time=36.9 ms64 bytes from px-in-f103.1e100.net (74.125.155.103): icmp_req=2 ttl=52 time=37.5 ms64 bytes from px-in-f103.1e100.net (74.125.155.103): icmp_req=3 ttl=52 time=34.3 ms64 bytes from px-in-f103.1e100.net (74.125.155.103): icmp_req=4 ttl=52 time=37.6 ms-- www.l.google.com ping statistics ---4 packets transmitted, 4 received, 0% packet loss
-Network Configuration
Step #2: Install PPP and RP-PPPoE
> sudo apt-get install ppp
The second package (rp-pppoe) requires you want to build it on your own. Start by grabbing the package from this website (Roaring Penguin)
> wget http://www.roaringpenguin.com/files/download/rp-pppoe-3.10.tar.gz
> tar -zxf rp-pppoe-3.10.tar.gz
> cd rp-pppoe-3.10/src
> ./configure
> make
> sudo make install
Step #3: Setup PPPoE Settings
/Etc/ppp/pppoe-server-options:
# PPP options for the PPPoE Server# LOC: GPL#require-paprequire-chaploginlcp-echo-interval 10lcp-echo-failure 2ms-dns 4.2.2.1ms-dns 4.2.2.3netmask 255.255.255.0defaultroutenoipdefaultusepeerdns
/Etc/ppp/chap-secrets:
# Secrets for authentication using CHAP# client server secret IP addresses"alice" * "1234" 172.32.50.2
> sudo chmod 600 /etc/ppp/chap-secrets
Last of all, setup the IP addresses to lease for the PPPoE Server. We're re giving IP addresses 172.32.50.2 to 172.32.50.30:
/Etc/ppp/ipaddress_pool:
172.32.50.2-30
Step #4: Set PPPoE Scripts
/Etc/ppp/pppoe_start:
#!/bin/bash############################### Simple script that starts PPPoE Server############################### Enable IP Forwardingecho 1 > /proc/sys/net/ipv4/ip_forward# Start PPPoE Serverpppoe-server -C isp -L 172.32.50.1 -p /etc/ppp/ipaddress_pool -I eth1 -m 1412# Set Firewall rulesiptables -t nat -F POSTROUTINGiptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
/Etc/ppp/pppoe_stop:
#!/bin/bash############################### Simple script that stops PPPoE Server############################### Disable IP Forwardingecho 0 > /proc/sys/net/ipv4/ip_forward# Kill PPPoE Serverkillall pppoe-serverkillall pppd# Flush the IPtable rules.iptables -t nat -F POSTROUTING
Step #5: Automatically start/stop PPPoE Server
/Etc/network/interfaces:
...auto eth1iface eth1 inet manualpost-up /etc/ppp/pppoe_startpost-down /etc/ppp/pppoe_stop...
Troubleshooting
/Etc/network/interfaces:
...auto eth1iface eth1 inet manualup ifconfig $IFACE 0.0.0.0 uppost-up /etc/ppp/pppoe_startpost-down /etc/ppp/pppoe_stopdown ifconfig $IFACE down...