Need to relate Radius log entries to DHCP ones Post: 302267891

Sponsored Content

Top Forums Shell Programming and Scripting Need to relate Radius log entries to DHCP ones Post 302267891 by otheus on Sunday 14th of December 2008 12:04:40 PM

12-14-2008

Registered User

So you need the MAC address and the IP address from the DHCP server??

Use awk or perl to scan in the DHCP file and remember mac/ip's. Then scan in the radius log, matching MACs to the hash-array used in step 1. Print the line from radius log with the extra info:

Code:

#!/usr/bin/perl

# To use: script dhcp.log radius.log

open(DHCP,shift @ARGV) || die "Cannot open DHCP logfile: $!";
open(RADIUS,shift @ARGV) || die "Cannot open RADIUS logfile: $!";

while (<DHCP>) { 
   next unless /DHCPACK on (\S+) to (\S+)/;
   $mac2ip{ lc($2) } = $1;
}

while (<RADIUS>) { 
   next unless /Auth: Login OK:.* cli (\w+)\)/;
   # remove trailing newline
   chomp;
   # grab mac address.
   $mac=lc($1);
   # convert to dhcp-style
   $mac =~ s/(\w\w)(\w\w)/$1:$2/g;
   # lookup ip from previous step
   $ip = exists $mac2ip{ $mac } ? $mac2ip{ $mac } : "UNKNOWN";
   # print original line with ip info
   print $_," $ip\n";
}

Tweaks might be necessary.

otheus

View Public Profile for otheus

Find all posts by otheus

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Question relate to AWK

Hi, I would like to setup a FOR loop script to find out all the existing linux workstation in the network w/ ip address, hostname and linux version. I created a basic FOR loop script: for i in $(seq 1 254) do echo 10.72.169.$i >> result ssh -o ConnectTimeout=3 root@10.72.169.$i...

2. UNIX for Advanced & Expert Users

radius+ldap

I need your help on how to integrate radius authentication with LDAP users database??

3. Programming

help with C++ code that relate the object with physical address

I need some help to write a C++ code that read and write the register of a sequencer. I have to make a code that relate the objects with the physical address but I am a bit confuse. Could someone suggest me how to proceed? in which parts do I split the code? thanks

4. AIX

AIX and radius authentication

We want to use RADIUS to authenticate our AIX server logins. Can anybody tell me how to set on AIX server up to use a Radius server to authenticate or point me to documentation on setting up AIX to use Radius to authenticate user login. Our problem is that we have a few users that access our...

5. UNIX for Dummies Questions & Answers

Why use RADIUS for authentication as there are many ways to do it ?

I guess I probably ask a dumb question but why use RADIUS for authentication as there are many ways to do it, as authentication is basically a user/password check? What is the benifit(s) of using it ? Thanks!

6. UNIX for Dummies Questions & Answers

remove duplicate entries from dhcp.lease

Hi, I have to parse the dhcp.lease file and have to keep the most recent entry and remove the rest and also the number of lines between any two leases might not always be the same. eg: lease 5.5.5.252 { starts Wed Jul 27 09:48:39 2011 ends Wed Jul 27 21:48:39 2011 tstp Wed Jul...

7. IP Networking

Wpa_cli with Radius

Hello everyone, I have a question in regards to connecting with wpa_cli to a Radius server. I can connect fine through WPA Enterprise and WPA2 Enterprise, but I'm lost on trying to connect to Radius. wpa_cli -iwlan0 set_network 0 ssid '"ssid"' wpa_cli -iwlan0 set_network 0 key_mgmt WPA-EAP...

8. IP Networking

Get DHCP relay interfaces IP address using DHCP

Hi All , please view the set up below: ------------------------------------------------------------------- | DHCP Server |-----------| ROUTER & |-----------| Clients | | 192.168.99.1 | - -<eth1>| DHCP-RELAY|<eth2>-- | 192.168.88.X | ...

9. UNIX for Dummies Questions & Answers

Radius

Hi all I have no idea what I am doing, I think I am learning...the previous linux admin left the company and I volunteered to help. My first task is to create a user (X) account in the radius. I was able to do that.. This user (X) will be login in to a cisco device same as user (Z) . ...

10. UNIX for Advanced & Expert Users

How to relate ipcs id or cpid to process?

Hi, we have multiple database instances running on solaris server like db1, db2 and db3. Below shown ipcs -pmb shared memory segment output. Using cpid value I want to relate to the database instances db1, db2 and db3. Please let me know how to do this? $ ipcs -pmb IPC status from <running...

LEARN ABOUT DEBIAN

bt-input

bt-input(1)							    bluez-tools 						       bt-input(1)

NAME

       bt-input - a bluetooth input manager

SYNOPSIS

       bt-input [OPTION...]

       Help Options:
	 -h, --help

       Application Options:
	 -a, --adapter=<name|mac>
	 -c, --connect=<name|mac>
	 -d, --disconnect=<name|mac>

DESCRIPTION

       This utility is used to manage outgoing input (HID) service connections.

OPTIONS

       -h, --help
	   Show help

       -a, --adapter <name|mac>
	   Specify adapter to use by his Name or MAC address
	   (if this option does not defined - default adapter used)

       -c, --connect <name|mac>
	   Connect to the input device

       -d, --disconnect <name|mac>
	   Disconnect from the input device

AUTHOR

       Alexander Orlenko <zxteam@gmail.com>.

SEE ALSO

       bt-adapter(1) bt-agent(1) bt-audio(1) bt-device(1) bt-monitor(1) bt-network(1) bt-serial(1)

								    2010-08-11							       bt-input(1)

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Question relate to AWK

Discussion started by: beeloo

2. UNIX for Advanced & Expert Users

radius+ldap

Discussion started by: mm00123

3. Programming

help with C++ code that relate the object with physical address

Discussion started by: silviafisica

4. AIX

AIX and radius authentication

Discussion started by: daveisme