Proxy ARP Difficulties

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Difficulties in matching left bracket as literal in awk

I need to work with records having #AX in the EXP1 , please see my data sample and my attempt below: $ cat xx 08:30:33 KEY1 (1255) EXP1 VAL:20AX0030006 08:30:33 KEY1 (1255) EXP1 VAL:20AX0030006 08:30:33 KEY1 (1255) EXP1 VAL:20AW0030006 08:30:33 KEY1 (1255) EXP1 VAL:20AW0030006 $ gawk '{...

2. IP Networking

Connecting via proxy chain to Upstream proxy

I need to configure a proxy on my local machine to use an upstream proxy (installed on another machine). The upstream proxy requires Digest/NTLM authorization. I want the local proxy to deal with the upstream proxy's authorization details and provides authorization free access to users that connect...

3. UNIX for Dummies Questions & Answers

Facing difficulties to untar a tra.gz file

Hi , I trying to cp a files to one location and trying to untar there,the tar.gz files get copied to the specified location but wont untar. Here is what i did if cp /path/of/the/file.tar.gz /path/to/the/file/file.tar.gz then tar -zxvf /path/to/the/file/file.tar.gz echo "FILE...

4. Red Hat

Difficulties with pam_tally2! :-(

Dear All I have having some trouble with pam_tally2 on RHEL 6.0 which I am getting quite frustrated with and I am sure it is a simple problem. I have the following lines in system-auth and password-auth: - auth required pam_tally2.so onerr=fail file=/var/log/faillog...

5. Filesystems, Disks and Memory

iSCSI client setup difficulties

I am trying to set up iscsi linux clients and am having some problems. iscsid is running, I can do discovery fine, but adding the iscsi lun I get the following error: iscsiadm -m node -T iqn.xxxxxxxxxxxxxx -p y.y.y.y:3260 -l Logging in to iscsid: session already running. iscsiadm: Could not...

6. IP Networking

Software/tool to route an IP packet to proxy server and capture the Proxy reply as an

Hi, I am involved in a project on Debian. One of my requirement is to route an IP packet in my application to a proxy server and receive the reply from the proxy server as an IP packet. My application handles data at the IP frame level. My application creates an IP packet(with all the necessary...

7. UNIX for Dummies Questions & Answers

Sorting Difficulties

Hey guys, I am sort of new to unix and I am having difficulty sorting. What I am trying to do is sort a particular field in reversed order and another field in alphabetic order to create a new file that looks like this: MILLER,EDWARD AL 14 101293 9341 MOORE,HENRY 15 ...

8. Shell Programming and Scripting

trying to cope with awk difficulties

The data we are searching is populated in this way: ----IP---------DAY----MONTH----DATE--------TIME---------YEAR 12.3234.34-----Fri------Nov-------15-------18:05:14 GMT---2008 I want the user to be able to search for the data according to month and year. However, I cannot quite figure out...

9. IP Networking

NAT with proxy ARP question

Hello Gurus! I'm currently trying to configure NAT using proxy ARP on a SunOS 5.8 . This box is running Check Point FW1 that sits behind my internet router. I have a server that is connected to the firewall box. I want to translate this server using proxy ARP. Settings:...

10. Programming

Simple Network Program Difficulties

I'm trying to write 2 programs, client & server, that communicate with integers, however, all resources I have found on the net assume that you want to send and recieve information as a character array. I don't want to send my integers as characters, I want to send them as ints (casting them to...

LEARN ABOUT DEBIAN

net::arp

ARP(3pm)						User Contributed Perl Documentation						  ARP(3pm)

NAME

       ARP - Perl extension for creating ARP packets

SYNOPSIS

	 use Net::ARP;
	 Net::ARP::send_packet('lo',		     # Device
			       '127.0.0.1',	     # Source IP
			       '127.0.0.1',	     # Destination IP
			       'aa:bb:cc:aa:bb:cc',  # Source MAC
			       'aa:bb:cc:aa:bb:cc',  # Destinaton MAC
			       'reply');	     # ARP operation

       $mac = Net::ARP::get_mac("eth0");

       print "$mac
";

       $mac = Net::ARP::arp_lookup($dev,"192.168.1.1");

       print "192.168.1.1 has got mac $mac
";

   IMPORTANT
       Version 1.0 will break with the API of PRE-1.0 versions, because the return value of arp_lookup() and get_mac() will no longer be passed as
       parameter, but returned!  I hope this decision is ok as long as we get a cleaner and more perlish API.

   DESCRIPTION
       This module can be used to create and send ARP packets and to get the mac address of an ethernet interface or ip address.

       send_packet()
	     Net::ARP::send_packet('lo',		 # Device
				   '127.0.0.1', 	 # Source IP
				   '127.0.0.1', 	 # Destination IP
				   'aa:bb:cc:aa:bb:cc',  # Source MAC
				   'aa:bb:cc:aa:bb:cc',  # Destinaton MAC
				   'reply');		 # ARP operation

	     I think this is self documentating.
	     ARP operation can be one of the following values:
	     request, reply, revrequest, revreply, invrequest, invreply.
	     The default ARP operation is reply.

       get_mac()
	     $mac = Net::ARP::get_mac("eth0");

	     This gets the MAC address of the eth0 interface and stores
	     it in the variable $mac. The return value is "unknown" if
	     the mac cannot be looked up.

       arp_lookup()
	     $mac = Net::ARP::arp_lookup($dev,"192.168.1.1");

	     This looks up the MAC address for the ip address 192.168.1.1
	     and stores it in the variable $mac. The return value is
	     "unknown" if the mac cannot be looked up.

SEE ALSO

	man -a arp

AUTHOR

	Bastian Ballmann [ Balle@chaostal.de ]
	http://www.datenterrorist.de

COPYRIGHT AND LICENSE

       Copyright (C) 2004-2007 by Bastian Ballmann

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.1 or,
       at your option, any later version of Perl 5 you may have available.

perl v5.14.2							    2009-04-24								  ARP(3pm)

IP Networking