Which MAC Address for Wireless MAC Filter?
I am setting up a new wireless router for my home network. I want to enable the Network to only accept a small number of devices.
Which MAC Address should I use, the computer MAC Address or the Airport MAC Address?
Thanks.
-Joe
Welcome to Apple Support Communities.
The AirPort MAC address is the one to use when limiting wireless access by MAC address.
Do include the computer MAC address to be certain you can still connect to the router via wired Ethernet cable in case the wireless network becomes unavailable.
I fully configure my router with a wired Ethernet connection before turning on any wireless access.
That way, the router is never visible and unsecured until you've completed your configuration.
And when complete, be sure to save the router config file. My D-Link writes the config to my local hard drive.
It's a pain to re-enter all those MAC addresses from scratch if you have to reset the router to an unconfigured state. At best, you can simple reload the saved config file.
At worst, having a screen print of the permitted MAC addresses and device names makes re-entering the info manually much easier than running around the house or office trying to locate the MAC addresses of all the phones, pods, tablets, game systems, and printers!
From a security standpoint, filtering wireless access by MAC address doesn't absolutely guarantee that a determined hacker with unlimited time and a 'sniffer' can't ever get in, but a casual thief simply looking for free WiFi will keep looking for an easier target.
Similar Messages
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I need to change the MAC Address for Airport on MacBook
I have a specific need to change my son's Airport MAC address as his school requires the use of USB network cards that aren't compatible with MACs. These cards are needed because the school's router uses MAC address filtering.
Before we upgraded his Mac to Snow Leopard, we were able to change the MAC address to the MAC address of the useless dongal the school supplied. We basically created an AppleScript program that ran the "sudo ifconfig en1 ether xx:xx:xx:xx:xx:xx" and all was good.
This command no longer works for changing the MAC address. We tried it as root user as well and by typing it into the terminal window as root. After running the command, we can run "ifconfig en1" and it does display the new mac address but when we turn the airport on and try to connect, it just hangs and won't connect.
Our other non-Snow Leopard still works fine after running the commands so I'm guessing Apple disabled this functionality. It's hardly a security issue by being able to change your mac addres.
Is there a new way to accomplish this? I've searched everywhere.
Thanks!Would an easier solution be to provide the school's IT admin with your mac address and have it added? If they can add a block of mac addresses for the usb dongles, they can add more for machines that cannot use the dongle.
Also: "It's hardly a security issue by being able to change your mac address."
While it may not be a security issue for your machine, it is a security for the school network who is using mac address filtering as hopefully only one part of their wireless security.
That being said, have you read this?
http://osxdaily.com/2008/01/17/how-to-spoof-your-mac-address-in-mac-os-x/ -
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I have a wireless network and can't connect to it at all. I have looked and typed in Blackberries search engine and came up with nothing, only answers are about a MAC computer, not what I am looking for.
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Animal
Raising teenagers is like trying to nail
jell-O to a tree!Found it,
Overview
To find the Media Access Control (MAC) address of a Wi-Fi® enabled BlackBerry smartphone, complete the following steps:
Click Options.
Click Status.
The WLAN MAC field displays the MAC address for the BlackBerry smartphone.
Raising teenagers is like trying to nail
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Router has been online and working fine with one BGP neighbor for almost 2 years and no downtime. 2 weeks ago, added a 2nd BGP peer. Everything worked fine for 2 weeks, then all of a sudden yesterday the 2nd BGP peer is disconnected and does not come back. ISP checks and sees everything looks fine on their end. We cannot even ping each other now.
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I have never, in 20 years working with Cisco routers seen something like this before. This is the most fundamental aspect of IP and Ethernet that was not working.
Has anyone ever seen this behavior before??
Here is the router config (IP's changed):
version 15.1
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service internal
service sequence-numbers
boot-start-marker
boot-end-marker
logging buffered 150000
aaa new-model
aaa authentication login LAUTHEN local
aaa authentication login TAUTHEN local group tacacs+ enable
aaa authorization console
aaa authorization exec LAUTHOR local if-authenticated
aaa authorization exec TAUTHOR local group tacacs+ if-authenticated
aaa session-id common
clock timezone PST -8 0
clock summer-time PDT recurring
no ipv6 cef
no ip source-route
ip cef
no ip domain lookup
multilink bundle-name authenticated
username ubiadmin privilege 15 secret 4 .JbeuWXuZvchrG0OL.5BftFtqrrEyxcnVHn5rIuCnTk
username umitsnoc01 privilege 15 secret 4 cUmoRUjey9O1x.wk9S.kleX.iAAhCwihupr6Z98p6OA
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ip ssh version 2
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class-map match-any AutoQoS-VoIP-Control-Trust
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match ip dscp af31
class-map match-any Customer-Voice
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class-map match-any media
match access-group name SIP-Media
class-map match-any signaling
match access-group name SIP-Signaling
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class AutoQoS-VoIP-RTP-Trust
priority percent 70
class AutoQoS-VoIP-Control-Trust
bandwidth percent 5
class class-default
fair-queue
policy-map queue
class signaling
bandwidth percent 5
class media
priority percent 50
class Customer-Voice
priority percent 40
class class-default
fair-queue
policy-map shape
class class-default
shape average 10000000
service-policy queue
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shutdown
interface GigabitEthernet0/0
description BGP Peer 1
ip address 2.2.2.2 255.255.255.252
no ip redirects
ip flow ingress
ip flow egress
duplex auto
speed auto
service-policy output shape
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description LAN
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ip flow egress
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standby 255 preempt
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neighbor 1.1.1.2 route-map L3-LPREF-IN in
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neighbor 2.2.2.1 ebgp-multihop 2
neighbor 2.2.2.1 update-source GigabitEthernet0/0
neighbor 2.2.2.1 send-community
neighbor 2.2.2.1 prefix-list COLO-DEFGW in
neighbor 2.2.2.1 route-map COLO-LPREF-IN in
neighbor 2.2.2.1 route-map COLO-OUT out
ip forward-protocol nd
ip bgp-community new-format
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ip as-path access-list 5 deny .*
ip as-path access-list 10 permit ^6666$
no ip http server
no ip http secure-server
ip flow-top-talkers
top 50
sort-by bytes
ip route 0.0.0.0 0.0.0.0 1.1.1.2 254 name L3
ip route 0.0.0.0 0.0.0.0 2.2.2.1 255 name COLO1
ip route 10.0.0.0 255.0.0.0 10.10.10.10 name FW_OUTSIDE
ip tacacs source-interface GigabitEthernet0/1
ip access-list standard SNMP_SOURCES
permit 12.12.12.0 0.0.0.255
deny any log
ip prefix-list L3-DEFGW seq 5 permit 0.0.0.0/0
ip prefix-list COLO-DEFGW seq 5 permit 0.0.0.0/0
ip prefix-list COLO-LPREF-OUT seq 5 permit 1.2.3.0/24
route-map COLO-LPREF-IN permit 5
match as-path 5
set local-preference 250
route-map COLO-LPREF-IN permit 10
set local-preference 150
route-map COLO-LPREF-IN permit 20
route-map COLO-OUT permit 10
match ip address prefix-list COLO-LPREF-OUT
set as-path prepend 7777 7777 7777
set community 29795:1004
route-map COLO-OUT permit 20
route-map L3-LPREF-IN permit 10
match as-path 10
set local-preference 200
route-map L3-LPREF-IN permit 20
set local-preference 150
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps vrrp
snmp-server enable traps flowmon
snmp-server enable traps transceiver all
snmp-server enable traps ds1
snmp-server enable traps call-home message-send-fail server-fail
snmp-server enable traps tty
snmp-server enable traps license
snmp-server enable traps envmon
snmp-server enable traps ethernet cfm cc mep-up mep-down cross-connect loop config
snmp-server enable traps ethernet cfm crosscheck mep-missing mep-unknown service-up
snmp-server enable traps flash insertion removal
snmp-server enable traps mac-notification
snmp-server enable traps aaa_server
snmp-server enable traps cef resource-failure peer-state-change peer-fib-state-change inconsistency
snmp-server enable traps memory bufferpeak
snmp-server enable traps config-copy
snmp-server enable traps config
snmp-server enable traps config-ctid
snmp-server enable traps event-manager
snmp-server enable traps hsrp
snmp-server enable traps cpu threshold
snmp-server enable traps rsvp
snmp-server enable traps syslog
snmp-server enable traps vtp
snmp-server enable traps ipslaWhen you were checking the ARP table was there an entry for Fast0/0/0?
HTH
Rick -
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I can Zero the HD and reinstall the OS via the clone (including all the applications)?
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Which is better for solving Mac G5 issues
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Could someone hlep me with this log message: IP-4-ZERO_ADDR: Zero MAC address for <ip> in ARP cache
It just started appearing in our Cisco 10012 CMTS, and all of the documentation is very vague as to what it is and how to fix it. I'm hoping someone else has seen the message and can help clarify it's meaning. Thanks in advance!Your not the only one with these logs mess :
Jan 20 13:05:10: %IP-4-ZERO_ADDR: Zero MAC address for 10.100.xxx.69 in ARP cache
Jan 20 13:30:02: %IP-4-ZERO_ADDR: Zero MAC address for 10.100.xxx.69 in ARP cache
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How do I find the MAC address for the time capsule?
I am trying to install 2T time capsule as my main router. Telus my internet supplier allows me to in install the MAC address for the static ip that I am going to use. But where is the MAC address on the cube or how do I get it?
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Ann154 wrote:
WalrusM wrote:
how do you find the phone's mac address for Droid RAZR Maxx HD?
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I want to enforce MAC filtering in my router.The OS is win7 home pro 64 bit.
How do I find the MAC address for my CP1525nw printer? It is not on the label, and the router reports only the name of the printer.
This question was solved.
View Solution.First, MAC filtering is not a security measure because it is so easily defeated. Read more here: http://blogs.zdnet.com/Ou/?p=43
If you want to continue, print a self test from the front of the printer: Reports > Config Report. It will be listed as the Hardware address.
Say thanks by clicking "Kudos" "thumbs up" in the post that helped you.
I am employed by HP -
"failed to get MAC address for machine"
here is the jist of things.
installed leopard and have it pimped out to my personal specs. I like where everything is and how things are working. No issues. just so you know, i only use WIFI for internet, i share with the guys upstairs. In order to get wifi on my machine, i use a USB dongle. works great no issues with it ever, well until i physically broke it. No big deal. So i replaced it with another one, different drivers/chipset worked.. And since i installed leopard i only backed it up once with TM, i dont care for daily/hrly backups, weekly is fine for me. Now after 2 weeks and a new usb network card. TM gives me an error. i click on the little red i and it says "the backup volume could not be found" so googled and searched the forums not much help, so i tried and formated my ext drive repaired and click on TM again, same error. In the error log in console, right after i turn on TM i get this error, "failed to get MAC address for machine" then 180 secs later, TM fails. again, and again.
Can anyone tell me where i can find what MAC address its looking for??? ethernet has never been plugged in to my machine ever. its only been online via USB wifi. Im really lost here, i dont know what i can do.. im sure if i try another drive ill get the same error. please help if you can.. much appriciated.
Jamieyeah i get a 'failed to get mac address' message too. what's weird is that it seems that leopard 'broke' my ethernet (there was no mac address, couldn't connect to the internet through ethernet after a clean install), and then 10.5.2 'fixed' it. for some reason, i have an 'ethernet 2' heading in system preferences that works correctly and has a mac address and everything, while the regular 'ethernet' tab doesn't work at all. however, i still get this time machine error. i don't understand why time machine is so incredibly fickle. sorry, i'm really of no help to anyone, other than adding another voice to the frustration.
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