Proximus Decodeur v4 (Cisco ISB6030)

About

The Proximus Decodeur v4 is given with the Scarlet default pack.

proximus-decodeur-v4.png

Port scan

$ sudo nmap 192.168.1.64
Starting Nmap 7.60 ( https://nmap.org ) at 2020-05-10 20:56 CEST
Nmap scan report for 192.168.1.64
Host is up (0.0024s latency).
Not shown: 997 closed ports
PORT      STATE SERVICE
22/tcp    open  ssh
9001/tcp  open  tor-orport
49152/tcp open  unknown
MAC Address: 38:C8:5C:C2:50:22 (Cisco Spvtg)

A curl at this port 49152 reveals a box running a Linux kernel "Linux/2.6.31-3.3-isb6030 UPnP/1.0 DLNADOC/1.50 Portable SDK for UPnP devices/1.4.6-6":

$ curl -vvv http://192.168.1.64:49152
* Rebuilt URL to: http://192.168.1.64:49152/
*   Trying 192.168.1.64...
* TCP_NODELAY set
* Connected to 192.168.1.64 (192.168.1.64) port 49152 (#0)
> GET / HTTP/1.1
> Host: 192.168.1.64:49152
> User-Agent: curl/7.58.0
> Accept: */*
> 
< HTTP/1.1 500 Internal Server Error
< SERVER: Linux/2.6.31-3.3-isb6030 UPnP/1.0 DLNADOC/1.50 Portable SDK for UPnP devices/1.4.6-6
< CONNECTION: close
< CONTENT-LENGTH: 60
< CONTENT-TYPE: text/html
< 
* Closing connection 0
<html><body><h1>500 Internal Server Error</h1></body></html>

It is a Cisco ISB6030.

It runs a Dropbear SSH server:

$ telnet 192.168.1.64 22
Trying 192.168.1.64...
Connected to 192.168.1.64.
Escape character is '^]'.
SSH-2.0-dropbear_0.52

Serial port?

Looking at the PCB pictures, this 4 pins connectors looks like a good candidate for a serial console:

cisco-isb-6030-pcb-serialport.jpg

After further analysis, it looks more like a USB connector.

A better picture of the PCB is available at https://www.circuitsonline.net/forum/view/141264

On the top right, you can see a white 4 pins connector with UART written on the PCB:

cisco-isb6030-uart.jpeg

Links