06-02-2011
@Corona688: I very well know what an IP and a MAC address is.
Please google for "proxy arp" and "policy routing" - things are not so simple as they seem.
![Wink Smilie](https://www.unix.com/images/smilies/wink.gif)
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
OS: Solaris9, SPARC
Is there any way I can track the commands run by users from the shell prompt?
Example:
Somebody is deleting files from the system. Who it is is a mystery. That person obviously does not use bash prompt so there is no history. Is there anyway I can find out who... (5 Replies)
Discussion started by: mahatma
5 Replies
2. UNIX for Advanced & Expert Users
dear all,
I'm facing problem that is i have noticed from few days back that some body is deleting and making changes in the file from developement server where i'm working(in unix)
so i want to track that who is using the server, what performancr they are doing and each every thing which r... (5 Replies)
Discussion started by: panknil
5 Replies
3. UNIX for Advanced & Expert Users
Is there a way to track down what process is sending to a certain port? I have some thing pounding the network with requests to a multicast IP that doesn't exist. I have shut down all comms related processes and yet it is still there. Need a way to track the port or IP back to the process. Thanks... (3 Replies)
Discussion started by: mattmanuel
3 Replies
4. UNIX for Dummies Questions & Answers
Hi everyone hope you can help me
i have 5 root users and the problem with that is how can you see
witch root user did what on the box how can you track the users that
played on the servers.
1) What commands they typed (in linux you get history )
2) From witch ip did they connect to the server (3 Replies)
Discussion started by: sucram
3 Replies
5. IP Networking
hi,
i'm using tcpreplay to send a traffic trace to my wireless interface (the trace is been captured by the same interface). It seems as netfilter can't trace connections. Is it possible? (0 Replies)
Discussion started by: littleboyblu
0 Replies
6. UNIX for Advanced & Expert Users
Hello
I'm facing the above problem while doing a performance run. I've a script which I'm launching from my windows desktop using mozilla. The script will invoke backend action on a Solaris host which in turn feeds the records to a driver located on a linux box(Cent OS).
What's happening is... (1 Reply)
Discussion started by: subramanyab
1 Replies
7. Solaris
Hi everyone,
I am hoping anyone of you could help me in this weird problem we have in 1 of our Solaris 10 servers. Lately, we have been having some ftp problems in this server. Though it can ping any server within the network, it seems that it can only ftp to a select few. For most servers, the... (4 Replies)
Discussion started by: labdakos
4 Replies
8. AIX
Hi All
How can track what commands are entered by the Root user. Is there a log besides using the history command that lists all commands entered for a period of time.
thanks:o (6 Replies)
Discussion started by: pashan
6 Replies
9. Red Hat
I've tried to see what I can find on my own but I'm coming up with goose eggs. Basically I was wondering if there was a way of querying the scheduler (or something similar) to track a process back to a particular CPU it's executing on at the time of the command. ps has a "cpu" output option but... (1 Reply)
Discussion started by: thmnetwork
1 Replies
10. UNIX for Advanced & Expert Users
Hi everybody,
I am running a program on a supercomputer via my personal computer through a ssh connection. My program take more than a day to run, so when I left work with my PC I stop the connection with the supercomputer and the program stop.
I am wondering if someone know how I can manage... (2 Replies)
Discussion started by: TomTomGre
2 Replies
arp(1M) System Administration Commands arp(1M)
NAME
arp - address resolution display and control
SYNOPSIS
arp hostname
arp -a [-n]
arp -d hostname
arp -f filename
arp -s hostname ether_address [temp] [pub] [trail]
DESCRIPTION
The arp program displays and modifies the Internet-to-MAC address translation tables used by the address resolution protocol (see arp(7P)).
With no flags, the program displays the current ARP entry for hostname. The host may be specified by name or by number, using Internet dot
notation.
OPTIONS
-a Display all of the current ARP entries. The definition for the flags in the table are:
M Mapping; only used for the multicast entry for 224.0.0.0
P Publish; includes IP address for the machine and the addresses that have explicitly been added by the -s option. ARP will
respond to ARP requests for this address.
S Static; not learned for the ARP protocol.
U Unresolved; waiting for ARP response.
You can use the -n option with the -a option to disable the automatic numeric IP address-to-name translation. Use arp -an or arp
-na to display numeric IP addresses.
-d Delete an entry for the host called hostname. This option may only be used by the super-user.
-f Read the file named filename and set multiple entries in the ARP tables. Entries in the file should be of the form:
hostname MACaddress [temp] [pub] [trail]
See the -s option for argument definitions.
-s Create an ARP entry for the host called hostname with the MAC address MACaddress. For example, an Ethernet address is given as
six hexadecimal bytes separated by colons. The entry will be permanent unless the word temp is given in the command. If the word
pub is given, the entry will be published. For instance, this system will respond to ARP requests for hostname even though the
hostname is not its own. The word trail indicates that trailer encapsulations may be sent to this host. arp -s can be used for a
limited form of proxy ARP when a host on one of the directly attached networks is not physically present on the subnet. Another
machine can then be configured to respond to ARP requests using arp -s. This is useful in certain SLIP configurations.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
ifconfig(1M), arp(7P), attributes(5)
SunOS 5.10 7 Mar 2003 arp(1M)