How I get NIC real MAC address?



  • I am use the Lenovo V6000 COMPUTER  nForce2 Motherboard's NIC(for do PFsense server).  the NIC's MAC address and my new buy TP-link NIC has the same MAC address.

    Now how I get NIC real MAC address and fix it?  ???



  • There must be an error somewhere because they can't have the same MAC address. Even if it were possible the chances of you stumbling upon a card with the same number would be enormous, you'd have more chance of winning the lottery.

    Where are you seeing the MAC? During the install? From a switch? Maybe you are seeing a switch MAC, or the port on a router rather than the true MAC.

    You can spoof the WAN MAC address on pfSense, but?



  • @mibovrd:

    There must be an error somewhere because they can't have the same MAC address. Even if it were possible the chances of you stumbling upon a card with the same number would be enormous, you'd have more chance of winning the lottery.

    Where are you seeing the MAC? During the install? From a switch? Maybe you are seeing a switch MAC, or the port on a router rather than the true MAC.

    You can spoof the WAN MAC address on pfSense, but?

    So the NIC can't PPPoE connect and can't for LAN. I have find PPPoe logs and search about error in the forum, just I find its has the same MAC address.
    I know that should address not the same, so I did not expect for this reason.

    I was surprised at different times, the onboard NIC and after the purchase of a separate network card address is actually the same.

    now How I fix on the PFsense server NIC MAC?



  • On the line that says MAC Address…              :)




  • @chpalmer:

    On the line that says MAC Address…              :)

    The way still can't connect pppoe ,show undefined interface in pppoe logs.






  • The pictures you posted look to me like you might have a loop.

    Do you have both your OPT1 and LAN plugged into the same switch?

    edit-  wrong interface the first time…



  • @chpalmer:

    The pictures you posted look to me like you might have a loop.

    Do you have both your WAN and LAN plugged into the same switch?

    the 192.168.101.3 in other web server NIC.  the nfe0 NIC interface is at pfsense server.

    ADSL router DLINK 2500E–-Huawei router--pfsense server--switch-- web sever and wifi



  • @chpalmer:

    edit-  wrong interface the first time…

    what's do you mean?



  • @yon:

    @chpalmer:

    edit-  wrong interface the first time…

    what's do you mean?

    I made a mistake when I posted and I fixed the mistake.  Edit= what I did to fix my mistake.



  • @yon:

    the 192.168.101.3 in other web server NIC.  the nfe0 NIC interface is at pfsense server.

    ADSL router DLINK 2500E–-Huawei router--pfsense server--switch-- web sever and wifi

    Go to  /services_dhcp.php     bottom of page…

    Delete that entry...




  • Your DHCP leases page shows a static entry for MAC address 00:25:86:9b:72:d3. The static entry means your DHCP server has been configured to always assign the same IP address (in this case 192.168.101.3) to the system with MAC address 00:25:86:9b:72:d3. The assign interfaces page shows your pfSense OPT1 interface has MAC address 00:25:86:9b:72:d3.

    Why does a pfSense interface has a static DHCP entry in the pfSense server which hosts the interface? The static DHCP entry should be deleted!

    I suspect the DHCP lease shows as online because its my recollection a DHCP lease shows as online if there is an entry in the ARP table. Because OPT1 is a local interface, if it has an IP address there is a permanent ARP entry for it hence it may appear online in the DHCP lease table.

    You haven't made a convincing case you have duplicate MAC addresses on your network.  And even if you had, you haven't made a convincing case that a duplicate MAC address is the cause of your PPP issue. How about posting a section of the PPP log showing the error report and a few line before and after it? And which interface is the PPP interface with the trouble (WAN? OPT1?)



  • Delete it here.




  • well, the client web server's NIC is 192.168.101.3. and web server NIC MAC address is 00:25:86:9b:72:d3. this TP-link new NIC. about it is buy in 2010 year.

    The PFsense server NIC MAC address is 00:25:86:9b:72:d3 also. this old  computer's motherboard comes with the  NIC card. about it is buy in 2005 year.

    I don't know why it is has the same MAC address.  I have not do change the  TP-link new NIC MAC address.  the old computer's is my family .



  • See if you can change the server MAC.    Otherwise you will always have problems..



  • ppp log:

    Jan 3 19:32:08 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:32:08 ppp: [opt1_link0] Link: reconnection attempt 10287 in 2 seconds
    Jan 3 19:32:10 ppp: [opt1_link0] Link: reconnection attempt 10287
    Jan 3 19:32:10 ppp: [opt1_link0] PPPoE: Skipping link "opt1_link0" with undefined interface
    Jan 3 19:32:10 ppp: [opt1_link0] PPPoE node for link is not initialized
    Jan 3 19:32:10 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:32:10 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:32:10 ppp: [opt1_link0] Link: reconnection attempt 10288 in 4 seconds
    Jan 3 19:32:14 ppp: [opt1_link0] Link: reconnection attempt 10288
    Jan 3 19:32:14 ppp: [opt1_link0] PPPoE: Skipping link "opt1_link0" with undefined interface
    Jan 3 19:32:14 ppp: [opt1_link0] PPPoE node for link is not initialized
    Jan 3 19:32:14 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:32:14 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:32:14 ppp: [opt1_link0] Link: reconnection attempt 10289 in 2 seconds
    Jan 3 19:32:16 ppp: [opt1_link0] Link: reconnection attempt 10289
    Jan 3 19:32:16 ppp: [opt1_link0] PPPoE: Skipping link "opt1_link0" with undefined interface
    Jan 3 19:32:16 ppp: [opt1_link0] PPPoE node for link is not initialized
    Jan 3 19:32:16 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:32:16 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:32:16 ppp: [opt1_link0] Link: reconnection attempt 10290 in 1 seconds
    Jan 3 19:32:17 ppp: [opt1_link0] Link: reconnection attempt 10290
    Jan 3 19:32:17 ppp: [opt1_link0] PPPoE: Skipping link "opt1_link0" with undefined interface
    Jan 3 19:32:17 ppp: [opt1_link0] PPPoE node for link is not initialized
    Jan 3 19:32:17 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:32:17 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:32:17 ppp: [opt1_link0] Link: reconnection attempt 10291 in 2 seconds
    Jan 3 19:32:19 ppp: [opt1_link0] Link: reconnection attempt 10291
    Jan 3 19:32:19 ppp: [opt1_link0] PPPoE: Skipping link "opt1_link0" with undefined interface
    Jan 3 19:32:19 ppp: [opt1_link0] PPPoE node for link is not initialized
    Jan 3 19:32:19 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:32:19 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:32:19 ppp: [opt1_link0] Link: reconnection attempt 10292 in 2 seconds
    Jan 3 19:32:21 ppp: [opt1_link0] Link: reconnection attempt 10292
    Jan 3 19:32:21 ppp: [opt1_link0] PPPoE: Skipping link "opt1_link0" with undefined interface
    Jan 3 19:32:21 ppp: [opt1_link0] PPPoE node for link is not initialized
    Jan 3 19:32:21 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:32:21 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:32:21 ppp: [opt1_link0] Link: reconnection attempt 10293 in 1 seconds
    Jan 3 19:32:22 ppp: [opt1_link0] Link: reconnection attempt 10293
    Jan 3 19:32:22 ppp: [opt1_link0] PPPoE: Skipping link "opt1_link0" with undefined interface
    Jan 3 19:32:22 ppp: [opt1_link0] PPPoE node for link is not initialized
    Jan 3 19:32:22 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:32:22 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:32:22 ppp: [opt1_link0] Link: reconnection attempt 10294 in 4 seconds
    Jan 3 19:32:26 ppp: [opt1_link0] Link: reconnection attempt 10294
    Jan 3 19:32:26 ppp: [opt1_link0] PPPoE: Skipping link "opt1_link0" with undefined interface
    Jan 3 19:32:26 ppp: [opt1_link0] PPPoE node for link is not initialized
    Jan 3 19:32:26 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:32:26 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:32:26 ppp: [opt1_link0] Link: reconnection attempt 10295 in 1 seconds



  • @chpalmer:

    See if you can change the server MAC.    Otherwise you will always have problems..

    So I want to konw how get real MAC and fix it in Pfsense server.

    I don't know how do it in freebsd system.  :(



  • Stand By.



  • Your "Interface Assignment" page should look similar to this.




  • The old computer NIC how know my new buy NIC MAC address.

    Even such a coincidence?  ???



  • /interfaces_ppps.php    -  Should look similar…    Can you show yours?




  • @yon:

    The old computer NIC how know my new buy NIC MAC address.

    Even such a coincidence?  ???

    Almost unbelievable…    Can you change NIC's in one or the other?

    :P



  • used to modify ("spoof") the MAC address of this interface

    Last 50 PPP log entries
    Jan 3 19:49:30 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:49:30 ppp: [opt1_link0] Link: reconnection attempt 3 in 1 seconds
    Jan 3 19:49:31 ppp: [opt1_link0] Link: reconnection attempt 3
    Jan 3 19:49:31 ppp: [opt1_link0] PPPoE: Connecting to ''
    Jan 3 19:49:40 ppp: [opt1_link0] PPPoE connection timeout after 9 seconds
    Jan 3 19:49:40 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:49:40 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:49:40 ppp: [opt1_link0] Link: reconnection attempt 4 in 1 seconds
    Jan 3 19:49:41 ppp: [opt1_link0] Link: reconnection attempt 4
    Jan 3 19:49:41 ppp: [opt1_link0] PPPoE: Connecting to ''
    Jan 3 19:49:50 ppp: [opt1_link0] PPPoE connection timeout after 9 seconds
    Jan 3 19:49:50 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:49:50 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:49:50 ppp: [opt1_link0] Link: reconnection attempt 5 in 3 seconds
    Jan 3 19:49:53 ppp: [opt1_link0] Link: reconnection attempt 5
    Jan 3 19:49:53 ppp: [opt1_link0] PPPoE: Connecting to ''
    Jan 3 19:50:02 ppp: [opt1_link0] PPPoE connection timeout after 9 seconds
    Jan 3 19:50:02 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:50:02 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:50:02 ppp: [opt1_link0] Link: reconnection attempt 6 in 1 seconds
    Jan 3 19:50:03 ppp: [opt1_link0] Link: reconnection attempt 6
    Jan 3 19:50:03 ppp: [opt1_link0] PPPoE: Connecting to ''
    Jan 3 19:50:12 ppp: [opt1_link0] PPPoE connection timeout after 9 seconds
    Jan 3 19:50:12 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:50:12 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:50:12 ppp: [opt1_link0] Link: reconnection attempt 7 in 3 seconds
    Jan 3 19:50:15 ppp: [opt1_link0] Link: reconnection attempt 7
    Jan 3 19:50:15 ppp: [opt1_link0] PPPoE: Connecting to ''
    Jan 3 19:50:24 ppp: [opt1_link0] PPPoE connection timeout after 9 seconds
    Jan 3 19:50:24 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:50:24 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:50:24 ppp: [opt1_link0] Link: reconnection attempt 8 in 4 seconds
    Jan 3 19:50:28 ppp: [opt1_link0] Link: reconnection attempt 8
    Jan 3 19:50:28 ppp: [opt1_link0] PPPoE: Connecting to ''
    Jan 3 19:50:37 ppp: [opt1_link0] PPPoE connection timeout after 9 seconds
    Jan 3 19:50:37 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:50:37 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:50:37 ppp: [opt1_link0] Link: reconnection attempt 9 in 1 seconds
    Jan 3 19:50:39 ppp: [opt1_link0] Link: reconnection attempt 9
    Jan 3 19:50:39 ppp: [opt1_link0] PPPoE: Connecting to ''
    Jan 3 19:50:48 ppp: [opt1_link0] PPPoE connection timeout after 9 seconds
    Jan 3 19:50:48 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:50:48 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:50:48 ppp: [opt1_link0] Link: reconnection attempt 10 in 1 seconds
    Jan 3 19:50:49 ppp: [opt1_link0] Link: reconnection attempt 10
    Jan 3 19:50:49 ppp: [opt1_link0] PPPoE: Connecting to ''
    Jan 3 19:50:58 ppp: [opt1_link0] PPPoE connection timeout after 9 seconds
    Jan 3 19:50:58 ppp: [opt1_link0] Link: DOWN event
    Jan 3 19:50:58 ppp: [opt1_link0] LCP: Down event
    Jan 3 19:50:58 ppp: [opt1_link0] Link: reconnection attempt 11 in 3 seconds




  • @chpalmer:

    /interfaces_ppps.php    -   Should look similar…    Can you show yours?




  • Non of those are set up for MLPPP.



  • @chpalmer:

    Non of those are set up for MLPPP.

    why it is?



  • Stand by and Ill put some pictures together…



  • How many modems do you have?



  • Notice here I have 2 (two) interfaces…

    These are set up as MLPPP.



  • This is the ppp page.



  • and here.  see the difference?



  • my PF server has three NIC ( tow new NIC), one of for LAN, one for PPoe,and other NIC because the same MAC can't use.

    then I need buy an  new NIC again?



  • About the MAC address error get back real MAC now. now it is seem can work.

    To solve a MAC problem.

    but the interfaces_ppps.php still can't edit it. when I click edit,the pf server dead.

    in system log has show an error is " apinger: Error while feeding rrdtool: Broken pipe"  what it is ?






  • The GUI will sometimes pause if there is no WAN active. You may just need to wait.

    Your MLPPP is still not configured correctly.  You need to look at my examples and make yours like that.



  • @chpalmer:

    The GUI will sometimes pause if there is no WAN active. You may just need to wait.

    Your MLPPP is still not configured correctly.   You need to look at my examples and make yours like that.

    my WAN is active, but I always can't edit any  /interfaces_ppps.php and /interfaces_ppps_edit.php?id=2.  when I click edit its, pfsense server will dead.

    So How I do like you ?


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