Solved

Configure Unique MAC Address for router sub interface

Posted on 2011-02-28
3
2,841 Views
Last Modified: 2012-06-27
Hi All,

I would like to know if it is possible to assign different MAC address on Cisco router sub interfaces. I am using Cisco 2811

FE0/0 having 0013.60f2.0ed8
FE0/0.100 having 0013.60f2.0ed8
FE0/0.412 having 0013.60f2.0ed8

I have a requirement to make sure that traffic from each vlan have diffrent MAC address.

Ideally MAC for vlan 100 and vlan 412 will be diffrent from each other. something like

FE0/0 having 0013.60f2.0ed8
FE0/0.100 having 0013.60f2.0aaa
FE0/0.412 having 0013.60f2.0aab

If possible, please provide step to configure this

Example

FastEthernet0/0 is up, line protocol is up
  Hardware is MV96340 Ethernet, address is 0013.60f2.0ed8 (bia 0013.60f2.0ed8)
  Description: Trunk
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 63/255, rxload 63/255

FastEthernet0/0.100 is up, line protocol is up
  Hardware is MV96340 Ethernet, address is 0013.60f2.0ed8 (bia 0013.60f2.0ed8)
  Description: vlan100
  Internet address is 10.10.9.1/30

FastEthernet0/0.412 is up, line protocol is up
  Hardware is MV96340 Ethernet, address is 0013.60f2.0ed8 (bia 0013.60f2.0ed8)
  Description: vlan412
  Internet address is 10.10.10.1/30
0
Comment
Question by:AntonVQ
  • 2
3 Comments
 
LVL 24

Expert Comment

by:rfc1180
ID: 35004598
>I would like to know if it is possible to assign different MAC address on Cisco router sub interfaces. I am using Cisco 2811

Not possible with Cisco

>I have a requirement to make sure that traffic from each vlan have diffrent MAC address.
What requirement
0
 

Author Comment

by:AntonVQ
ID: 35004798
I am using a GPON OLT system which impose different MAC address connecting via different VLAN
If the OLT detected same MAC address originating from diffrent VLAN, it will drop the traffic for the other VLAN and only allow one.
Hence i will need to ensure each VLAN from my router interface sending out with diffrent MAC address.



0
 
LVL 24

Accepted Solution

by:
rfc1180 earned 500 total points
ID: 35004825
Only work around I can think of is:

bridge irb

bridge 1 protocol ieee
bridge 1 route ip
bridge 2 protocol ieee
bridge 2 route ip


FastEthernet0/0.100
no ip address
bridge-group 1


FastEthernet0/0.412
no ip address
bridge-group 2

interface BVI1
 mac-address 0013.60f2.1ed8
 ip address 10.10.9.1 255.255.255.252
!
interface BVI2
 mac-address 0013.60f2.2ed8
 ip address 10.10.10.1 255.255.255.252



0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

I have seen some questions on problems with SSH/telnet access to Cisco routers that may occur despite the fact that from a PC connected to your LAN, Internet connectivity is in place and users can access Internet sites without any issues.  There are…
I eventually solved a perplexing problem setting up telnet for a new switch.  I installed a new Cisco WS-03560X-24P switch connected to an existing Cisco 4506 running a WS-X4013-10GE Sup II-Plus. After configuring vlans and trunking,  I could no…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now