Tag: rrdtool
Stats from the “Alice Modem 1111″
by armageddon on Jan.24, 2011, under quickhack
This weekend a friend of mine asked me if I could make his fileserver display some intersting stats. One of those stats would be the internet traffic. The problem was the crappy modem/router thing from Alice that he has to use. The webinterface has very sparse information, there is also no traffic monitor.
Running nmap revealed that the modem has a telnet interface.
Starting Nmap 5.00 ( http://nmap.org ) at 2011-01-24 10:18 CET
Interesting ports on alicebox.localdomain (192.168.1.1):
Not shown: 996 closed ports
PORT STATE SERVICE
23/tcp open telnet
80/tcp open http
2800/tcp open unknown
8008/tcp open http
I tried connecting, and then there was the next problem: It asked for login and password. I found out that it is not the same as for the webinterface, so I googled. The login would be “admin” and the password would consist of “Alice” + the last 6 Bytes of the MAC in hex + “123″, for example “AliceFFFFFF123″.
The I was confronted with some strange shell that allowed to press “?” to display the possibilities.
Trying 192.168.1.1...
Connected to 192.168.1.1.
Escape character is '^]'.
Alice Modem 1111
Alice Software Version : 4.19
Login: admin
Password: **************
Login successful
-->
agent Get a file from a remote host
bridge Configure layer 2 bridge.
bridgevlan VLAN transport configuration
classifier Packet classifier configuration commands
console Console access
dhcpclient DHCP client configuration commands
dhcprelay DHCP relay Configuration
dhcpserver DHCP server configuration commands
dnsrelay DNS relay configuration
ethernet Commands to configure ethernet transports
firewall Firewall configuration commands
help Top level CLI help
imdebug Directly access the information model
ip Configure IP router
l2filter Packet filter configuration commands
nat NAT configuration commands
port Physical port configuration commands
pppoa PPP over ATM configuration
pppoe PPP over Ethernet Configuration
security Security configuration commands not specific to NAT or firewall
sntpclient Simple Network Time Protocol Client commands
stop
system System administration commands
transports Transport configuration commands
upnp UPnP configuration commands
user User commands
-->
After toying around a bit, I found what I needed:
--> port ethernet show
Version = 1.01
RxNoBuffer = 121
TxNoBuffer = 0
PortClassEthernet = true
Disable = false
PromiscuousEnable = true
RxBroadcastEnable = true
RxMulticastEnable = true
RxMulticastAllEnable = true
RxUnicastEnable = true
RxAddressEnable = false
RxPassBad = false
FullDuplexEnable = true
CrcEnable = false
PadShortDataEnable = false
Loopback = false
HaltImmediately = true
MAC = 00:85:a0:01:01:00
RxOK = 4657743
TxOK = 6663192
MaxFilterEntries = 21
TxIntTx = 6663192
Tx10Stat = 0
TxPar = 0
TxHalted = 0
TxSQErr = 0
TxMCast = 7788
TxBCast = 2018
TxVLAN = 0
TxMACC = 0
TxPause = 0
TxExcessiveCollisions = 0
TxLateCollisions = 0
TxUnderrun = 0
TxCarrierLoss = 0
TxDeferred = 0
TxAfterOneCollision = 0
TxAfterMoreCollision = 0
TxCollisions = 0
TxExcessiveDeferrals = 0
RxIntRx = 0
RxMIIErrors = 0
RxPar = 0
RxHalted = 0
RxMulticastPackets = 62675
RxBroadcastPackets = 693755
RxVLAN1Frames = 0
RxPAUSE = 0
RxCRCErrors = 0
RxErrorAlign = 0
RxOverlongPackets = 0
RxOverruns = 112852
RxControlFrames = 0
RxShortPackets = 749
txOKBytes = 211726529
rxOKBytes = 541541832
txUCastPkts = 6653390
rxUCastPkts = 4012768
PhyMode = MII
resetDefaults = false
portSnmpIfIndex = 0
portSnmpIfType = 0
All I had to do now was automate this process. The finished python script, using expect to simulate the interaction and rrdtool to store and graph the data, looked like this:
#!/usr/bin/python
import pexpect, sys, os
os.linesep = "\r" #telnet expects \r instead of \n, expect uses os.liensep
#Connect and simulate interaction
c = pexpect.spawn("telnet 192.168.1.1 23")
c.expect("Login: ")
c.sendline("admin")
c.expect("Password: ")
c.sendline("AliceFFFFFF123")
c.expect("--> ")
c.sendline("port ethernet show")
c.expect("--> ")
res = c.before
c.close()
#Find the required values
lines = res.split("\r\n")
for line in lines:
if line.startswith("txOKBytes"):
tx = line.split("= ")[1]
if line.startswith("rxOKBytes"):
rx = line.split("= ")[1]
#Update RRD
pexpect.run("rrdtool update /home/ave/rrd/database/internet.rrd N:%s:%s" % (tx,rx))
The finished output of rrdtool looks like this:
Later I added a second graph that shows the number of devices in the LAN that respond to ping probes. It’s as simple as
#!/bin/bash
res=`nmap -sP 192.168.1.50-253 | wc -l` #nmap the LAN, count the lines
num=$(($res - 3)) #substract nmap's static status lines
rrdtool update /home/ave/rrd/database/devices.rrd N:$num #update RRD
I hope I could give some of you an example on how to approach such a problem. Comment if you did something similar or want to do it!
