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| Newer page: | version 4 | Last edited on Sunday, June 15, 2008 6:43:58 am | by PeterScott | |
| Older page: | version 1 | Last edited on Monday, April 28, 2008 10:24:05 am | by PeterScott | Revert |
@@ -1,52 +1,78 @@
!Getting Billion 7100 into Half Bidge Howto.
(also works on a wide varierty of cheap adsl routers because they pretty much all use the same chipset)
-a. Quick start | username and password, PPPoA VCMUX, VPI=, VCI=100
, dhcp server
on, save config and reboot, confirm connects under NAT
.
+a. hard reset the modem
, making sure you know the login.
dhcp on your pc
, browse to 192.168.1
.254
-b. Configuration | Advanced | Misc Configuration | Half bridge | Enabled
+b. Quick start | username and password, PPPoA VCMUX, VPI=, VCI=100, tick automatically reconnect, save config and restart, confirm connects under NAT.
+
+c
. Configuration | Advanced | Misc Configuration | Half bridge | Enabled
+
+d. Configuration | WAN | pvc0 submit| and return the encapsulation to pppoa VC-MUX, Half bridge alters this wrongly to ppoe llc
+
+b0. Save settings and restart
c. Configuration | Advanced | Misc Configuration | HTTP Server Port | 81
-d
. Go back to Configuration | WAN | pvc0 submit|
and return the encapsulation to pppoa VC-MUX, Half bridge alters this wrongly to ppoe llc
+b0
. Save settings
and restart
-e. reboot router
,
+(you must do this in several steps
, it wont work otherwise)
-f. use dhcp client downstream, and
there you have it, your WAN ip address on your box, check
your firewall.
+And
there you have it, if you are lucky, and the stars line up
, your WAN ip address on your linux
box. Check
your firewall. Youll need the static route hack on your box see [Half bridge with PPPoA]. You can get back into the modem at 192.168.1.254:81
-These and many similar modems support `DMZ`
, but all this does is NAT
to a static LAN address
, sans firewall
. Turn off NAT and DMZ doesnt work. This might get around some folks `port forwarding`/virtual server issues, but youre still stuck with a weak NAT implementation
.
+While the above worked for me in 2008 using Xnet
, attempts
to reproduce it that same month using more or less identical hardware
, but another ISP (Planet), were eratic at best
. YMMV
.
!Getting Billion 7100 into 1:1 NAT+DMZ
-You could however try this, it worked here. It
is said that 1:1 NAT removes a NAT step, but theres still more routing going on than necessary
.
+This
is an alternative method if half bridge doesnt work well. The modem just maps all incoming traffic to the static ip address of your linux router
.
-a. Configuration | LAN | DHCP server | off
+a. Hard reset the modem
-a2
. Check device IP address
and netmask {same subnet as your linux router}
+b
. Quick start | username
and password, PPPoA VCMUX, VPI=, VCI=100, tick automatically reconnect, save config and restart, confirm connects under NAT.
-b. Configuration | Advanced | NAT | Enabled
-
-static
NAT)
+c. Configuration | Advanced | NAT | mode | NAT (sometimes Static
NAT)
d. Configuration | Advanced | NAT | Session name config
-d2
. Enter: {yourname}, interface: PPPoPvc0, add, submit
+e
. Enter: {yourname}, interface: PPPoPvc0, add, submit
-d
. Configuration | Advanced | NAT | Session name config | go back to nat config
+f
. Configuration | Advanced | NAT | Session name config | go back to nat config
-e
. Enter: session: {yourname}
, users
IP= {static IP of your linux router
}, add, submit
+g
. Enter: session: Peter
, IP= 192.168.1.1
}, add, submit
-f
. Configuration | Advanced | Misc config | DMZ | Enabled
+h
. Configuration | Advanced | Misc config | DMZ | Enabled
-f2
. Under
DMZ Host
IP, enter: {static IP of you linux router}
+i
. Configuration | Advanced | Misc config |
DMZ host
IP | 192.168.1.1
-g
. Save settings and reboot
+j
. Save settings and reboot
-h. setup your linux router with a static IP on the same subnet as the modem
.
+k
. Configuration | Advanced | Misc Configuration | HTTP Server Port | 81
-This
will forward all incoming ports to the linux router, and basically map the dynamic WAN ISP to your linux routers static IP, directly and exclusively. The advantage of this is if your firewall ruleset needs to know its WAN IP (which it will if your iptables is tight),
then its much
easier with a static IP on the routers WAN.
+l. Save settings and restart
+
+Set your linux router to have a static WAN address 192.168.1.1. The
will forward all incoming ports to the linux router, and basically map the dynamic WAN ISP to your linux routers static IP, directly and exclusively. The advantage of this is if your firewall ruleset needs to know its WAN IP then its easier with a static IP on the routers WAN.
If you have anyway to compare the performance of these two methods let us know, edit the page!
+
+!Firmware
+
+These modems usually came out of the box with firmware versions:
+
+CX82xxx_4.1.0.Na_IB300c (where N is 9,10,14 etc)
+
+I have upgraded a few of these to CX82xxx_4.1.0.38_IB650c which is available here:
+[http://www.billion.com/support/download/fd/fd1-ADSL2-firewall-router.html#fd1011] (Annex A is POTS, Annex B is ISDN)
+
+with not altogether satisfactory results
+- web gui bug onquick start page
+- network timeouts when P2P present
+- half bridge implementation is no superior that OOB firmware.
+
+These have been great modems in their day but i guess its nearly time to move on.
+
+Peter Scott, June 2008
+
+
!Dynalink RTA1320
http://kb.netcomm.com.au/kb/default.asp?id=2761&Lang=1 (howto bridge 1320)
