Summary:
This article provides Point-to-Point over Ethernet (PPPoE) configuration examples.
For other topics, go to the SRX Getting Started main page.
Problem or Goal:
Configure PPPoE.
Cause:
Solution:
This section contains the following:
- Basic PPPoE Configuration Example
- Complete PPPoE and ADSL Configuration Example
- Technical Documentation
- Troubleshooting
Basic PPPoE Configuration Example
The following example illustrates a basic PPPoE configuration.
interfaces {
fe-0/0/5 {
unit 0 {
encapsulation ppp-over-ether;
}
}
pp0 {
unit 0 {
ppp-options {
pap {
access-profile ppp-profile;
local-password "dkwoxslxqpz";##SECRET-DATA
local-name "username";
passive;
}
}
pppoe-options {
underlying-interface fe-0/0/5.0;
auto-reconnect 10;
client;
idle-timeout 0;
}
family inet {
negotiate-address;
mtu 1492;
}
}
}
}
Complete PPPoE and ADSL Configuration Example
The following example is a complete working configuration example using the following settings:
- ADSL is the primary WAN interface in the untrust zone.
- A 3G is the backup interface, monitoring the primary ADSL (at) interface.
- A dialup interface (external modem) is used as a failover.
- The at-1/0/0 and pp0.0 interfaces are in the untrust zone.
- For pp0.0, point-to-point is configured.
- PAP is configured using the passive option.
- The PPPoE underlying-interface and client options are configured.
- All Ethernet ports are in a single VLAN group with a DHCP server providing service.
- A default route to the DSL interface is configured.
- Source NAT is enabled.
system {
host-name SRX210;
name-server {
208.67.222.222;
208.67.220.220;
}
services {
ssh;
telnet;
web-management {
http {
interface vlan.0;
}
https {
system-generated-certificate;
interface vlan.0;
}
}
dhcp {
domain-name jnpr.net;
router {
192.168.0.1;
}
pool 192.168.0.0/24 {
address-range low 192.168.0.100 high 192.168.0.199;
}
}
}
syslog {
archive size 100k files 3;
user * {
any emergency;
}
file messages {
any critical;
authorization info;
}
file interactive-commands {
interactive-commands error;
}
}
max-configurations-on-flash 5;
max-configuration-rollbacks 5;
license {
autoupdate {
url https://ae1.juniper.net/junos/key_retrieval;
}
}
}
interfaces {
interface-range interfaces-trust {
member ge-0/0/0;
member ge-0/0/1;
member fe-0/0/2;
member fe-0/0/3;
member fe-0/0/4;
member fe-0/0/5;
member fe-0/0/6;
member fe-0/0/7;
unit 0 {
family ethernet-switching {
vlan {
members vlan-trust;
}
}
}
}
cl-0/0/8 {
traceoptions {
flag all;
}
modem-options {
init-command-string "AT&C1";
}
dialer-options {
pool 1 priority 23;
}
}
dl0 {
unit 0 {
family inet {
negotiate-address;
}
dialer-options {
pool 1;
dial-string 1234;
}
}
}
at-1/0/0 {
encapsulation ethernet-over-atm;
atm-options {
vpi 0;
}
dsl-options {
operating-mode auto;
}
unit 0 {
encapsulation ppp-over-ether-over-atm-llc;
vci 0.35;
backup-options {
interface dl0.0;
}
}
}
pp0 {
traceoptions {
flag all;
}
unit 0 {
point-to-point;
ppp-options {
pap {
default-password "$9$/Gav9u1RhrK871RNds2UDCtu1hr"; ## SECRET-DATA
local-name "phadu@sbcglobal.net";
local-password "$9$hWLceWLxdwgJWLZUHqzFSreWxd"; ## SECRET-DATA
passive;
}
}
pppoe-options {
underlying-interface at-1/0/0.0;
client;
}
no-keepalives;
family inet {
negotiate-address;
}
}
}
vlan {
unit 0 {
family inet {
address 192.168.0.1/24;
}
}
}
}
routing-options {
static {
route 0.0.0.0/0 next-hop pp0.0 metric 0;
route 0.0.0.0/0 next-hop dl0.0;
}
}
security {
nat {
source {
rule-set trust-to-untrust {
from zone trust;
to zone untrust;
rule source-nat-rule {
match {
source-address 0.0.0.0/0;
}
then {
source-nat {
interface;
}
}
}
}
}
}
screen {
ids-option untrust-screen {
icmp {
ping-death;
}
ip {
source-route-option;
tear-drop;
}
tcp {
syn-flood {
alarm-threshold 1024;
attack-threshold 200;
source-threshold 1024;
destination-threshold 2048;
timeout 20;
}
land;
}
}
}
zones {
security-zone trust {
host-inbound-traffic {
system-services {
all;
}
protocols {
all;
}
}
interfaces {
vlan.0;
}
}
security-zone untrust {
screen untrust-screen;
host-inbound-traffic {
system-services {
all;
}
}
interfaces {
at-1/0/0.0;
pp0.0;
dl0.0;
}
}
}
policies {
from-zone trust to-zone untrust {
policy default-permit {
match {
source-address any;
destination-address any;
application any;
}
then {
permit;
}
}
}
}
}
poe {
interface all;
}
vlans {
vlan-trust {
vlan-id 3;
l3-interface vlan.0;
}
}
Another configuration example is KB15347 – What will be the configuration for PPPoE over ATM on an ADSL interface?.
Technical Documentation
Interface Encapsulation Feature Guide for Security Devices
Troubleshooting
Use the show interfaces interface_name extensive command to review state and history information for the at and pp interfaces. For example:
user@host> show interfaces at-1/0/0 extensive
user@host> show interfaces pp0 extensive
ADSL interface modules have LEDs that show sync and traffic status. For more information, see http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/reference/specifications/mini-pim-adsl2-srx-series-leds.html.
Purpose:
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