ADSL Support - Pacific Internet

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Setting up (or switching from) a type a (ppp) connection to a type c 
(bridged/cip connection) using the Alcatel SpeedTouch PRO Modem

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This configuration is done using the web interface of the Modem.

First you need to remove the existing phonebook entries.
Once the phonebook is empty you need to add an entry

name : pacific
vpi  : 8
vci  : 35
type : cip

Then click "add", "apply" and then "cip"

under "cip interfaces" you need to add the "end user router interface
static ip address" under "local ip-address". This will be the same as 
what telstra have allocated the you on the "end user application
form"

the mask will almost always be 255.255.255.252

Then click "add" and "apply"

In most cases the telstra-end static ip address's will be "discovered"
under "CIP Connections".  If this is the case then telstra have 
provisioned this line correctly. We are going to delete this as sometimes
this address will dissapear for no apparent reason, and thus the
connection if more reliable if we add the infomation statically.

So, take a note of the "remote ip-address" (make sure it is the
same as what is on the provisioning form) and click on "delete"
icon.  Then enter the remote address, and click on the "add" icon.

"apply & "save all" again.

Now click on "routing" to bring up the routing table. Sometimes
the CIP interface will not be added as the default gateway, and we
need to do this manually.

Make sure this is an entry under "IP route table" that looks like
the following. If there is not, then you can add one in.

Destination: any
Source: any
Gateway: Telstra-End IP address.

Then click on "add", "apply" & "save all"

from this point the following things should happen

a) Any third party, from a remote location, will be able to ping the your 
user-end IP address, provided that firewalling on the Pro is disabled
b) You will be able to ping both the Telstra-end IP and your own
IP address from within the Pro modem.

(you can do this by telnet'ing to the pro and typing "ip" (for the ip prompt)
and then "ping" - after that just follow the prompts)

Now we have established that the end-to-end classic-IP connection Pacific
Internet, Telstra, and yourself.

The next thing we need to ensure that the framed route is also working the 
way it should be. If you have your own IP allocation then you need to
allocate one of these addresses as the inside address of the pro modem,
and set this as a default gateway for the other  network clients.

A traceroute from your computer should look like this

 1  Your IP Address you have allocated your machine
 2  Part of the IP allocation you designate as the internal address of the PRO.
 3  Telstra End IP of the CIP interface
 4  Pacific Internet ADSL Router
 5  Internet - General
 
An reverse traceroute (example) looks slightly different.

 1  FastEthernet0-0.syd004.pacific.net.au (61.8.0.19)  <= Pacific Internet
 2  * * *                                              <= Telstra IPSN
 3  203.10.12.13 (203.10.12.13)                        <= IP Allocation (gw) 
 4  203.10.12.14 (203.10.12.14)                        <= IP Allocation (you)

Once this works you can now  allocate the remaining IP addresses you 
see fit within your own network.

Thats about it.

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This document would not not be here without the 
help of byron brink and fenn baily.

Send comments or questions to corptech@pacific.net.au
(c) James Mollison / Pacific Internet Australia

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