mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-24 20:53:22 +02:00
104 lines
2.9 KiB
Plaintext
104 lines
2.9 KiB
Plaintext
OPENWRT PPPOECD NOTES
|
|
=====================
|
|
|
|
1. GENERAL
|
|
----------
|
|
|
|
This package is used to estabilish basic connection to the
|
|
Internet via DSL/ADSL modems. This is also known as the
|
|
PPPoE or PPP-over-Ethernet connection.
|
|
|
|
The PPPOECD program included in the OpenWrt distribution is a
|
|
modified version of the PPPOECD that is present in the original
|
|
Linksys firmware.
|
|
|
|
This modified version is directly supported by the OpenWrt
|
|
startup scripts.
|
|
|
|
2. BUILDING
|
|
-----------
|
|
|
|
If you have a pre-compiled PPPOECD package, skip this section.
|
|
|
|
PPPOECD can be built in two ways. As an integrated part
|
|
of the OpenWrt FLASH image or as an .ipk package that can
|
|
be installed separately.
|
|
|
|
To build PPPOECD as an embedded component, add "pppoecd" to the
|
|
TARGETS variable in the main OpenWrt Makefile before the
|
|
"openwrt-bin" value.
|
|
|
|
To build as a standalone package, add "pppoecd" to the
|
|
PACKAGES variable in the main OpenWrt Makefile.
|
|
|
|
3. NVRAM variables
|
|
------------------
|
|
|
|
In order for the PPPoE link to be established by the networking
|
|
scripts the following NVRAM variables must be present:
|
|
|
|
wan_ifname Should be set to: ppp0
|
|
|
|
wan_proto Should be set to: pppoe
|
|
|
|
pppoe_ifname Set it to the WAN interface on which the PPPoE
|
|
is to function. On a 2.0 or a GS model it is
|
|
usually vlan1. The 1.0 and 1.1 models used vlan2.
|
|
|
|
ppp_username User name for your PPPoE connection.
|
|
|
|
ppp_passwd Password for the connection.
|
|
|
|
ppp_redialperiod Time between reconnect attempts.
|
|
Usualy set to 30.
|
|
|
|
ppp_idletime Time the link has to stay dead before reconnecting.
|
|
Usually set to 5.
|
|
|
|
wan_mtu The Maxumum Transfer Unit for the PPPoE connection.
|
|
Typically 1492.
|
|
|
|
Please consult the OpenWrt WIKI or the forum for more
|
|
information on NVRAM variables.
|
|
|
|
|
|
4. STARTUP / SHUTDOWN
|
|
---------------------
|
|
|
|
OpenWrt will attempt to connect using PPPOECD when starting up.
|
|
The script responsible for that is /etc/init.d/S40network.
|
|
|
|
You can also manually start the PPPOECD by doing:
|
|
|
|
ifup wan
|
|
|
|
Similarly you can shutdown the PPPOECD by doing:
|
|
|
|
ifdown wan
|
|
|
|
|
|
5. CONFIGURATION
|
|
----------------
|
|
|
|
PPPoE firewall configuration is the standard OpenWrt configuration
|
|
in /etc/init.d/S45firewall that applies to all the other types
|
|
of connections to the Internet.
|
|
|
|
Additional actions can be performed when connecting or disconnecting
|
|
by modifying "ip-up" and "ip-down" scripts in the /etc/ppp directory.
|
|
|
|
When connecting, PPPOECD creates /tmp/resolv.conf file that contains
|
|
DNS server entries as supplied by the ISP. The standard ip-up
|
|
script will also add a default route leading via the PPPoE link.
|
|
|
|
6. DIFFERENCES FROM THE ORIGINAL PPPOECD
|
|
----------------------------------------
|
|
|
|
The main difference is the location of files. Original Linksys
|
|
PPPOECD operated almost exclusively in the /tmp/ppp directory. This
|
|
however prevents any persistent configuration of the program via
|
|
ip-up or ip-down scripts. Also the program itself was located in
|
|
/usr/sbin whereas OpenWrt scripts expect it to be in /sbin directory.
|
|
|
|
|