ISE Identities - Lifetime/Age-Out of Mac-Addresses

Hello,
is there a way to have the Mac-Addresses/Identities in the ISE-Database age-out after a certain amount of time (i.e. 4 weeks).
Beste regards

Here are some screenshot for the same

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Hello!
I was wondering if there is any way to pull out the mac address from all the computers in the organisation via the group policy?
It would be rather difficult to pull out mac address one by one from each computer.
Appreciate your assistance and advise on this!
Thank you so much :)

You can use group policy to run a startup or logon script to get the information and write it to some file/database.
You could also get the information remotely using a script.
You could also as your network guy for a list of IPs and MACs they see.
Group policy is intended to make settings, not to get information. However you can
set a startup or logonscript that reads out the information through group policy.
A sample script surely is available in the scriptcenter, but I think help on the specific script is more something or the scripting forums.
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I'm off to university soon and I need to know my MAC address of my internal ethernet card so the uni can authorise it on the network system. I will be connected to a network point via an Ethernet cable, so I won't be using wireless AirPort.
In System Profiler, where should I look to find my MAC address?
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OR
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3500xl# show mac int fa0/1
Non-static Address Table:
Destination Address Address Type VLAN Destination Port
0800.20a4.eefe Dynamic 6 FastEthernet0/1
I work in the aerospace industry and this was very useful for me to verify hosts were connected to the correct switch port (especially in remote locations). It also allowed me to verify more easily find out if someone who shouldn't be connected to the net is (i.e. a user that might disconnect a Sun host to put his PC on the net).
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Hi Scott,
You can achieve the same with the following command
sh mac-address-table interface
eg
2950#sh mac-address-table interface fa 0/1
Non-static Address Table:
Destination Address Address Type VLAN Destination Port
0015.2bd7.1821 Dynamic 25 FastEthernet0/1
HTH
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Where can I find the MAC address

Dear all,
Do anybody know in which scripts or files I could find out the MAC address (not type command line e.g ifconfig -a), thx a log!!
Regards,
Vincent

Hi Vincent,
<pre>
OK, Sparc systems gets its MAC address from NVRAM
and Intel (x86) systems gets its MAC address from
the ethernet card that they use. Since you had posted
this question on Solaris on Intel I presumed it to be
Intel.
Following is an unsupported and untested
method(atleast from my end). All the best.
You may try to change the MAC address using the
ifconfig command.
(ifconfig elxl0 ether x:x:x:x:x:x)
In this file, add the entry at bottom.
Do this on test system.
/etc/rcS.d/S30rootusr.sh (<= SunOS 5.7)
/etc/rcS.d/S30network.sh (>= SunOS 5.8)
example:
ifconfig <interface> ether 8:0:20:83:fe:75
If this does'nt solves your purpose, then please provide
the reason why do you want to change the MAC address,
perhaps one may suggest some good alternate method.
Thanks
Kalpesh
</pre>

How to get Mac Address of Remote Computer

Hi All,
I tried to find out a solution for finding Mac Address of a remote system, then first i tried with finding it with local address using the following code it works fine for me.
public class MacAddressFinder {
     public static void main(String[] args) {
          try
               InetAddress ipAddr = InetAddress.getLocalHost();
               System.out.println("Current IP address : " + ipAddr.getHostAddress());
               NetworkInterface nwIntf;
               try
                    nwIntf = NetworkInterface.getByInetAddress(ipAddr);
                    byte[] hwAddr = nwIntf.getHardwareAddress();
                    System.out.print("Current MAC address : ");
                    StringBuilder sb = new StringBuilder();
                    for (int i = 0; i < hwAddr.length; i++)
                         sb.append(String.format("%02X%s", hwAddr, (i < hwAddr.length - 1) ? "-" : ""));
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               } catch (SocketException e) {
                    e.printStackTrace();
          catch (UnknownHostException e) {
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But when i tried this piece of code in jsp with the following code i am getting NeworkInterface object value as null and there by i am unable to get the Mac Address of a remote computer.
InetAddress ipAddr = InetAddress.getByName(request.getRemoteAddr());
NetworkInterface nwIntf = NetworkInterface.getByInetAddress(ipAddr);Can you please suggest me how to find out the Mac address of remote system?
Thanks,
Uday

first of all, NetworkInterface only exposes the NetworkInterfaces of the local computer. secondly, you cannot find the mac address of an arbitrary remote computer. that information is not available outside of the local subnet. and java doesn't expose a way to discover it even for computers on the local subnet.

How is that the MAC address (BIA : Burn -in -Address) not yet exhausted?

How is that the MAC address (BIA : Burn -in -Address) not yet exhausted? IPV4 is exhausted and we are moving to IPV6!

MAC addresses are 48 bits long. That is 65536 times the IPv4 space. IP addresses need to be globally unique while MAC addresses only need to be unique on their local LAN segment (LAN/VLAN).
Here is a good link explaining it more in detail:
http://blog.michaelfmcnamara.com/2013/03/are-we-running-out-of-mac-addresses/
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http://www.ietf.org/proceedings/86/slides/slides-86-iab-techplenary-5
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I wish to obtain the MAC address of the primary ethernet card on a Solaris OS via C. This program is invoked many times/second so calling an external program is not really suitable.
The MAC address is being obtained for the purpose of providing a low-level software lock/key system (low level meaning I am aware it's relatively trivial to circumvent).
Paul.

Hello again.
I found out that the SIOCGARP ioctl will get the ARP entry of a certain IP address in the ethernet. Root access is not required.
The following program will print the ethernet MAC addresses of all IP networks (including dial-up and 127.0.0.1).
For Dial-up and 127.0.0.1 "No ethernet address" will be reported. If you have multiple network cards it may be a problem to find out the MAC address of the main board.
On my Blade-1000 the following output is produced:
lo0: 127.0.0.1 - No ethernet address.
eri0: 192.168.178.18 - 08:00:20:FB:2F:78Here is the program:
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <arpa/inet.h>
main(int argc,char *argv)
    unsigned char eth_addr[6];
    int i,j,sock;
    unsigned char *p;
    struct lifconf lic;
    struct lifreq lifrs[30];
    struct lifnum num;
    struct arpreq ar;
    struct sockaddr_in *soap,*soap2;
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    sock=socket(PF_INET,SOCK_DGRAM,IPPROTO_IP);
    num.lifn_family=AF_INET;
    num.lifn_flags=0;
    ioctl(sock,SIOCGLIFNUM,&num);
    lic.lifc_family=AF_INET;
    lic.lifc_flags=0;
    lic.lifc_len=sizeof(lifrs);
    lic.lifc_buf=(caddr_t)&(lifrs[0] );
    ioctl(sock,SIOCGLIFCONF,&lic);
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    for(i=0;i<num.lifn_count;i++)
        /* Get IP address */
        ioctl(sock,SIOCGLIFADDR,&(lifrs[ i ]));
        soap=(struct sockaddr_in *)&(lifrs[ i ].lifr_addr);
        soap2=(struct sockaddr_in *)&(ar.arp_pa);
        *soap2=*soap;
        /* Print IP address */
        p=(unsigned char *)&(soap->sin_addr);
        printf("%s: %u.%u.%u.%u - ",lifrs[ i ].lifr_name,
            p[0],p[1],p[2],p[3]);
        /* Get ethernet address */
        if(ioctl(sock,SIOCGARP,&ar)<0)
            printf("No ethernet address.\n");
        else
            p=(unsigned char *)&(ar.arp_ha.sa_data);
            printf("%02X:%02X:%02X:%02X:%02X:%02X\n",
                p[0],p[1],p[2],p[3],p[4],p[5]);
    close(sock);
}Martin

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Hello,
Not sure how to explain my requirement, but I will try: How can I broadcast my computer name along with the MAC address? In other words, I have a Netgear WNDR3700 router and when I login to see the "attached devices" I only see the assigned IP and MAC for all our MacBooks. The router page shows other devices (printers, shared hard drives) but I want to identify my Mac also by name and not guess/investigate who's MacBook is.
Maybe the pic can help.
Thanks!

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ISE Identities - Lifetime/Age-Out of Mac-Addresses

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