Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Script getting IP's and MAC addresses
Top Forums Shell Programming and Scripting Script getting IP's and MAC addresses Post 303006615 by RudiC on Sunday 5th of November 2017 05:03:25 AM
Old 11-05-2017
This is what I get when applying above sed script to the dhcp.conf given:
Code:
iptables -I FORWARD -s 192.168.0.254 -p tcp -m multiport --dports 110,143,25,465,585,993,995,80,443 -m mac --mac-source E8:50:8B:F3:98:F6 -j ACCEPT
iptables -I FORWARD -s 192.168.0.253 -p tcp -m multiport --dports 110,143,25,465,585,993,995,80,443 -m mac --mac-source E8:50:8B:E1:E9:35 -j ACCEPT
iptables -I FORWARD -s 192.168.0.252 -p tcp -m multiport --dports 110,143,25,465,585,993,995,80,443 -m mac --mac-source 3C:FA:43:B1:13:3A -j ACCEPT

Anything special with your dhcp.conf? What be your sed version?


EDIT: OK, after correcting the code tags (changed from QUOTE tags) we can see the leading whitespace in the dhcp.conf file that need to be taken care of.
HERE YOU CAN SEE THE IMPORTANCE OF SHOWING COMMANDS AND INPUT CHARACTER BY CHARACTER, KEY STROKE BY KEY STROKE IN CODE TAGS!
Try
Code:
sed -n '/^ *hardware ethernet/ {s///; h; d;}; /^ *fixed-address / {s///; G; s/[;\n]//g; s/ / -p tcp -m multiport --dports 110,143,25,465,585,993,995,80,443 -m mac --mac-source /; s/^/iptables -I FORWARD -s /; s/$/ -j ACCEPT/; p;}' dhcp.conf

Last edited by RudiC; 11-05-2017 at 06:18 AM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Mac addresses of NICs (why are they the same)

I am training to be support on our solaris based network and was wondering why solaris seems to assign the same mac address to all NICs placed in the machine regardless of how many NICs are in there, when i do a ifconfig -a all nics have same MAC. Presumably this is a feature and there is... (1 Reply)
Discussion started by: hcclnoodles
1 Replies

2. Shell Programming and Scripting

Script to get IP addresses of LAN computers

I need a shell script for OS X, one that can find IP addresses of machines connected to my LAN, get the names of the computer associated with those addresses, then display them like so in a list: "Bob's L33T Boxx: #.#.#.#" Something like the network scanner in Apple Remote Desktop is what I'm... (1 Reply)
Discussion started by: sladuuch
1 Replies

3. UNIX for Dummies Questions & Answers

Help extracting MAC addresses from List

Hello all. I have a large number of text files outputted from various Netstumbler Wireless Scans; from which I need to extract the MAC addresses of the various Access Points. The Text files look like this: # $Creator: Network Stumbler Version 0.4.0 # $Format: wi-scan summary with... (9 Replies)
Discussion started by: dhs23
9 Replies

4. Shell Programming and Scripting

Need help with IP and MAC addresses

Hi, i am working on a project where i have to write a script to find out MAC addresses of the systems with given IP address. Can anybody tell me which command i can use to find MAC address if you know IP address of the machine. Thanks (5 Replies)
Discussion started by: manmeet
5 Replies

5. Shell Programming and Scripting

Help with bash script to block IP addresses

I am using a bash script for CentOS 5.5, I found one and modified it, however I want to block the incoming IP addresses and ALLOW the IP addresses that are blocked to send out email. I will use an internal network range for an example, 10.10.10.0/24 (if a lot of spam is incoming) from this range... (0 Replies)
Discussion started by: grifs71
0 Replies

6. Shell Programming and Scripting

script to get all ip addresses of servers into a file

Hi all i need to create a script that pings every server in my range (0-254) adn then returns the values to a file? can anyone please help. i am working in the tcsh ( and yes i know how to ping ) but i dont know how to ping them all in one script without copying and pasting a 254 times? ... (1 Reply)
Discussion started by: brian112
1 Replies

7. UNIX for Dummies Questions & Answers

Difference between Mac and IP addresses

If a web search is done on this topic there are many links but no information included in the documents. So my questions are; Why does a NIC card have it's own permanent ID. Why can't it share the host name? An ID is an ID. Why does a computer need two ways to ID it. If the network... (3 Replies)
Discussion started by: theKbStockpiler
3 Replies

8. Windows & DOS: Issues & Discussions

Script to ftp in to multiple ip addresses

Hello Is there an easy way to login to various ip's..one after the other. I need to login to about 30 aix boxes and put a file in each one... Cheers (1 Reply)
Discussion started by: Grueben
1 Replies

9. UNIX for Dummies Questions & Answers

Script to ftp in to multiple ip addresses

Hello Is there an easy way to login to various ip's..one after the other. I need to login to about 30 aix boxes and put a file in each one... Cheers (1 Reply)
Discussion started by: Grueben
1 Replies

10. Shell Programming and Scripting

Don't see my mac addresses of my devices

I have a problem with a script , i want to see my devices there are up in my network. I want as output the ip addresses of the devices and also the mac address but I only had the ip addresses #!/bin/bash while ] do -mac) Extension=5 shift mac=$1 shift ;; esac... (1 Reply)
Discussion started by: Roggy
1 Replies

LEARN ABOUT DEBIAN

shorewall-maclist

SHOREWALL-MACLIST(5)						  [FIXME: manual]					      SHOREWALL-MACLIST(5)

NAME

       maclist - Shorewall MAC Verification file

SYNOPSIS

       /etc/shorewall/maclist

DESCRIPTION

       This file is used to define the MAC addresses and optionally their associated IP addresses to be allowed to use the specified interface.
       The feature is enabled by using the maclist option in the shorewall-interfaces[1](5) or shorewall-hosts[2](5) configuration file.

       The columns in the file are as follows (where the column name is followed by a different name in parentheses, the different name is used in
       the alternate specification syntax).

       DISPOSITION - {ACCEPT|DROP|REJECT}[:log-level]
	   ACCEPT or DROP (if MACLIST_TABLE=filter in shorewall.conf[3](5), then REJECT is also allowed). If specified, the log-level causes
	   packets matching the rule to be logged at that level.

       INTERFACE - interface
	   Network interface to a host.

       MAC - address
	   MAC address of the host -- you do not need to use the Shorewall format for MAC addresses here. If IP ADDRESSESES is supplied then MAC
	   can be supplied as a dash (-)

       IP ADDRESSES (addresses) - [address[,address]...]
	   Optional - if specified, both the MAC and IP address must match. This column can contain a comma-separated list of host and/or subnet
	   addresses. If your kernel and iptables have iprange match support then IP address ranges are also allowed. Similarly, if your kernel
	   and iptables include ipset support than set names (prefixed by "+") are also allowed.

FILES

       /etc/shorewall/maclist

SEE ALSO

       http://shorewall.net/MAC_Validation.html

       http://shorewall.net/configuration_file_basics.htm#Pairs

       shorewall(8), shorewall-accounting(5), shorewall-actions(5), shorewall-blacklist(5), shorewall-hosts(5), shorewall_interfaces(5),
       shorewall-ipsets(5), shorewall-masq(5), shorewall-nat(5), shorewall-netmap(5), shorewall-params(5), shorewall-policy(5),
       shorewall-providers(5), shorewall-proxyarp(5), shorewall-rtrules(5), shorewall-routestopped(5), shorewall-rules(5), shorewall.conf(5),
       shorewall-secmarks(5), shorewall-tcclasses(5), shorewall-tcdevices(5), shorewall-tcrules(5), shorewall-tos(5), shorewall-tunnels(5),
       shorewall-zones(5)

NOTES

	1. shorewall-interfaces
	   http://www.shorewall.net/manpages/shorewall-interfaces.html

	2. shorewall-hosts
	   http://www.shorewall.net/manpages/shorewall-hosts.html

	3. shorewall.conf
	   http://www.shorewall.net/manpages/shorewall.conf.html

[FIXME: source] 						    06/28/2012						      SHOREWALL-MACLIST(5)
All times are GMT -4. The time now is 01:14 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy