Router seems several MAC addresses

Similar Questions

• Combination WRT1900AC Mac-addresses

  I have several computers on my network with 2 Apple TV. I recently got the WRT1900AC router to improve my network, but after a day or two on the Apple TV streaming was not possible. When you look through the creation, I noticed that for several computers mac address are placed in a single computer. Unable to find a way to separate the addresses from each other, I did a reset and it was fine. After 2 days, the problem appeared again. This could be the cause? Here is a picture of the addresses being combined.

  

  What version of Firmware is charged currently?
  Are what region you located?

  Router and wired Configurations
  Configuration DHCP reserved IP addresses for all devices ON the router. This ensures that each devices gets its own IP address when turned on and connected, eliminates conflicts of IP addresses and helps troubleshoot and maintain some consistency for applications that need to connect and mapped drives.
  Make sure that the devices are configured automatically obtain an IP address.

  Several MAC addresses reflect the WiFi and LAN adapters that are installed on the devices. However I think that only 2 MAC addresses should appear for your MacBook, WiFi and LAN however maybe BlueTooth is recognized. You can tesl cela by turning off the WiFI and BlueTooth on the MBP, leaving temporarily connected LAN and see what happens.

• Find the MAC address of my computer

  I know that there is a simple command to run in the command prompt window when I want to find the MAC address of my computer to connect to my router for the MAC address filtering.

  I thought it was MSCONFIG, but it isn't and darn if I can remember the correct command.  Can someone help me?

  Thank you

  Walt

  Hi, Walt:

  Run ipconfig/all from your command prompt command in accessories

  Paul

• Advantage of the MAC address cloning?

  What is the advantage of the MAC address cloning?

  There is no "advantage" to clone the MAC address. The only benefit would be to have internet or not.

  In many cases, it is absolutely useless to use the clone MAC address. If you have an internet connection through your router, then there is no need to use the MAC address cloning feature.

  Only when you find that you have a working internet connection on a computer directly on your modem, but not when you connect through the router (or another computer directly into the modem) then it is necessary to use the MAC address cloning feature.

  Usually, this is only the case with cable TV ISP. They allow you to have an active internet connection single at any time. They do this by remembering the MAC address which connects via a specific modem. If you connect first a computer for testing directly to your modem, you will have an internet connection. Now if you connect a different device to your modem it does not work is because the ISP has always blocked the internet connection, the MAC address of the first computer.

  How to remove the lock depends on the ISP and the modem. Sometimes just reset the modem or to turn everything off. Sometimes you turn off everything for a few hours and after that the first connection device is the one with the internet connection (i.e. make sure you connect the router then...) If you want to know exactly how your ISP to do this, you need to ask...

  The simple solution is to use the MAC address cloning feature. The router "clones" the MAC address of the first computer, i.e. it basically pretends to this computer. The MAC address is accepted by the ISP and is immediately authorized to the network. You have a working internet connection on the first computer, either through the router directly because both use the same MAC address. (This is no problem on the router because the MAC address is used on the internet port only...).

  Of course, remember all this. If at some point later, you connect another computer directly to the modem (for example you have connection problems and want to know what is wrong) you can "lock" in a different MAC address for your connection and you will have to wait to find the connection to a different device.

  But once again: there is absolutely no need to use the clone if you have an internet connection through your router.

• Configure filtering of MAC address on WRT54G - nothing links

  I created MAC address filtering on the wireless router.  5 MAC addresses added to the ALLOWED list, by selecting from the available devices.   Saved the changes.  Now, none of the machines can connect to the access point.  This includes the PC that I use to connect and administer the access point.  I plugged the network cable directly to my PC to manage the router/access point.  Still not able to connect.  That's happened?  How can I go and turn off this nonsense.  I know that MAC filtering is moot wrt efficiency, but I decide to try it.

  Reset the router back to the default values. Reconfigure from scratch.

• MAC address filtering problem with router DI-624 and printer HP D110

  Just got the wireless D110 printer and cannot connect to the wireless router.

  I have a D - Link DI - 624 Air Plus Xtreme G 2 .4GHz Wireless Router.

  The error message I get from the printer, it's that "address filtering Mac can be activated on your wireless router. This can prevent your HP printer to connect to your network without wire during installation... etc. ".

  The D-Link is configured with WPA - PSK security. If I disable all the security the wireless printer is able to connect. I can't connect the printer to the wireless router with WPA - PSK or WEP same active. There is no connection with the electrician the printer and the router.

  I have connected the router Admin and have repeatedly confirmed that Mac filtering is turned off by going to Advanced Options > Filters > filters Mac > and choose disabled Mac filters. Where is this setting? Why is not able to connect printer?

  In addition, I check the logs on the router and it shows "Wireless PC connected" and "Authentication successful" with a note that has the Mac address of the corresponding hardware address mac hardware of the printer on the wireless network Test report. It seems that the router is to let printing but the printer is not able to communicate for some reason any. It even shows under status > wireless printer is connected.

  When I talked to HP, they said to contact the router company and they couldn't help. When I called D-Link, they said technical support is no longer available for the model. I am stuck, can anyone help?

  Windows XP, tried the front of the printer and USB connection and using the software.

  After a few hours on the phone with the D-Link and HP, the problem has been resolved.

  Apparently, even if that Mac filtering is disabled (set to disabled MAC filters), the Mac address had to enter the router to enable all keeping off Mac filter setting. To me he appeared in the counter intuitive to enter the Mac address, while set to disabled the Mac filter so I wasn't that before picking up the phone with HP. Further on this point, the problem is not going away right after adding the mac address, but rather after the reboot of the router, such as the addition of mac address did not effect, without a reboot of the device.

  HP has been much more useful than a D-Link on it, although it would be nice for HP to add to their instructions and Test report of wireless network to add the Mac address, just in case. I would have tried this step if it has stated that it is acceptable to add the mac address and keep the mac filters disabled.

• How can I determine the MACaddress of the Gen 4 Apple TV so that I can connect to my network. Must register on the router MAC address to connect to the internet.

  Security on my network requires that the MAC address of the device must be registered on router or I can't connect to the internet. Does not use a password based security configuration. How to find MAC address before the introduction of Apple TV?

  Contact your ISP

• How can I find screen confiquration router I need to enter a mac address for Xavier

  Xbox is having a problem contecting to the router by telling me to enter a mac address on-screen router confiquration... where is it?

  Hello

  I suggest you follow the link below and check if this can help:

  http://support.Xbox.com/en-us/pages/Xbox-360/troubleshoot/KB/error-cant-obtain-IP-address-router-modem.aspx?kbid=978976

  You can also post your query on Xbox discussion forum:

  http://forums.Xbox.com/

• IPad wi - fi MAC address not "MAC address" according to the Linksys router

  WRT55AG 2.0:

  Failed to save the MAC address of my new iPad wi - fi MAC filtering table.  Upgrade to the latest firmware, but still does not work.  When I try to record, I get a pop-up that says: "not a MAC Address.

  If I disable the MAC filtering, the iPad can be accessed via the router and the router shows the good MAC iPad in the customer table wireless, but I much perfer to have enabled MAC filtering.

  1. the MAC address filter is not a problem. It's a joke. As I have said before: the MAC addresses are always transferred not encrypted. If someone tries to penetrate your WPA2 protected wireless network, it is necessary to capture a lot of wireless traffic to crack the password. By the time it is cracked (who is supposed to be very difficult and time consuming if the password is good) the hacker knows all the MAC addresses that are accepted for your wireless network.

  2 No. more isn't always better. Are three locks on your door better than two? Ten are better than two? Why have you not 10 locks on your door? The longer the better? It's more, but the impact on you is much more important than the impact on an attacker. WPA2 with a strong password is like putting a stone wall think 100feet for protection. It is very high and very difficult to 'jump '. Filtering of MAC addresses is like putting another small 5 inch thin barrier in front of the wall. The longer the better? Anyone that can fly over the wall will easily get over the fence. The greatest effect of the fence, it's that you will sometimes fall on it because you have forgotten. Compared to WPA2 security with a password strong MAC filter is simply not useful.

  3. the same for the SSID broadcast. Leave it active. The SSID is always transferred unencrypted over the affair with the access point. Any malicious person can easily find your SSID. In addition, it is easy to force a device associated to re-associate. With the right software, it takes a few seconds to learn the SSID. And even with SSID broadcast disabled, him access point always sends a signal of ELT. This means that the existence of your access point is immediately visible. Just the SSID is not transmitted with the tag.

  4. the disabled SSID broadcast technically breaks the wireless standard. Problems with wireless clients are common.

  5. the hidden SSID will be also the batteries in your wireless devices: wireless device always must actively try to connect from the hidden SSID. There is no other way to find out whether there is in the range. If you have ten networks hidden in the list of your wireless device wireless networks will try these ten networks frequently to see if one of these is in the range. In other words, it will try to connect to the hidden SSID and see if anything responds. If you do not connect to any hidden SSID (i.e. all the wireless networks in your list are broadcast) then it is very easy to find out whether a network is within reach: the device has to do is passively listen to the signals from the tags. There is no need to send anything until a known SSID is within reach. Then only the wireless device will try to associate with the SSID.

  So: don't hide your own SSID. And stay away from the other SSID hidden. Do not associate those or don't forget to remove from the list of preferred networks prior to departure. This will allow you to save a lot of battery power...

  To summarize: your neighbor who doesn't know computers would have a problem with broadcast SSID disabled or filtering of MAC addresses. But your neighbour do not know how to use a software to crack a wireless anyway. Anyone who is sophisticated enough to try a good attack on a protected network WPA2 will have no problem with the SSID broadcast or filtering of MAC addresses.

  And if it is an automated attack the SSID and MAC address is detected automatically. The broadcast SSID and MAC address filters are issues for you. They are not problems for any aggressor.

• How to block a MAC address on my router?

  I need to know to block a MAC address on my router

  You must open 192.168.1.1 in a browser (such as Internet Explorer) [usually the user name and password are admin]. Then go to security settings (depending on the manufacturer, the user interface varies) where block you a particular MAC address, or allow only a specific MAC address (options vary for the manufacturer).

  If any additional support is required, you can contact the support of manufacturer of router for assistance.

• Restrict access to the network on 871 router via mac address

  Hello

  I have a Cisco 871 router and I am trying to allow only specific MAC addresses access to the network. Is there a way to specify that only specific MAC addresses are allowed to access? Any other MAC access will be denied?

  I can either have static IP or DHCP for local machines.

  Can I use this "secure DHCP IP address assignment" details found here... http://www.cisco.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ftdsiaa.html ?

  I use these...

  static Mac address table

  OR

  Security table of Mac addresses

  ... to achieve this?

  Thank you.

  You can use "mac-address-table static" If you know all the mac addresses that will be connected.

  If the router is by distributing ip addresses so you can indeed do secure IP DHCP address assignment.

  Note that you can make a 'mac access-list' switch and aplly in any vlan you want.

  Alternatively, you can do "dhcp snooping" allowing guests who got a dhcp ip addresses and are not identity theft.

  I hope it helps.

  PK

• exit show me the same MAC address twice

  Hi all

  and easy for sure. When I run the interfaces see the G0/1 command on switch, why the output shows me the same MAC address twice?

  the address is 00d0.58c0.4519 (bia 00d0.58c0.4519)

  I know, BIA is burned in address and is located on the ROM, but what is the idea behind this?

  EDIT: also would like to ask, why a router maintains an arp entry for its own interface, it seems that this is not the case on for example a Windows laptop...

  Best regards

  Adam

  Adam,

  Some interfaces allow you to configure user-defined MAC address:

   R1#show int f0/0 | i bia Hardware is AmdFE, address is cc00.0fac.0000 (bia cc00.0fac.0000) R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int f0/0 R1(config-if)#mac-address 0200.0000.0001 R1(config-if)#do show int f0/0 | i bia Hardware is AmdFE, address is 0200.0000.0001 (bia cc00.0fac.0000)

  HTH

  Rolf

• SG500 showing the same MAC address on more than one port?

  My ISP has been help me solve a problem that we had with an interaction between our SG500 battery on HP customer premises equipment.

  I have the stack of SG500 divided into two VIRTUAL LANs. 8-port VLAN11 and the rest on VLAN1. Both are of VLAN native, not marked so they will carry only the traffic for their own VLAN with no mixing. I also route between these VLANs on the stack.

  VLAN11 switch ip: 10.76.20.20

  IP switch VLAN1: 10.1.1.1

  I took a port for each VLAN and plugged into the HP PSI switch, where he adapt VLANS separated which then connect to a remote data center through an MPLS.

  Here's the question: the SG500 seems to have mac address base on two HP PSI switch ports. This disrupts the HP switch, and I end up having packets to fall into a black hole. This is the output of the switch from HP showing mac based battery SG500 goods between ports in seconds:

  HP # display the address mac 8843e1-af7085

  Status and counters - Address-Table - 8843e1-af7085

  MAC address: 8843e1-af7085

  Located on the Port: 15

  HP # display the address mac 8843e1-af7085

  Status and counters - Address-Table - 8843e1-af7085

  MAC address: 8843e1-af7085
  Located on the Port: 11

  Any idea what's going on here? It's as if the SG500 uses the MAC even for both its IP addresses.

  Thank you!

  Hi Dani, the only MAC address announced by SX300/500 series should be the Mac system if you show on the SX500 mac address table, you should see the MAC even for both VLAN. I don't know why, is to confuse the HP switch unless it does not correctly between switches vlan tag.

  -Tom
  Please mark replied messages useful

• Need to find a way to block a MAC address

  Hi all

  I'm trying to block a certain MAC address or get an IP via DHCP, or if not possible to access the network.  I have remote sites with Cisco routers, but have not all Cisco switches.  What I find is that some people are plugging their devices and portable personal computers to the network.  Since I caught and got the MAC address of the DHCP bindings, I'm willing to put in some sort of rule to block.  I asked, but they openly ignore me.  If I have something in the router, they can get around that.  I tried to create an access list 700 to block the mac, but that doesn't seem to work.  I tried this on a Cisco 1841, 1921 and 2901 and it did not work.  Guidance on how to block a particular MAC address, or a bit of doing anything with a Cisco router, running, but without a Cisco Switch location is greatly appreciated.

  Thank you

  David

  Far from having a full network as Cisco ISE access control system, it is easier to do on your DHCP server, but whether or not you can do depends on the type of server you are using.

• PIX 501 with public several IP addresses

  Hi all

  I have the following configuration:

  audience of 6 IP addresses, for example: 123.123.123.1 - 6 255.255.255.248

  My provider, I have a Zyxel modem which has the 123.123.123.1 IP address, which is also the default gateway for my PIX.

  The PIX is connected to a modem Zyxel.

  The external interface of the PIX, 123.123.123.2 and the inside interface 192.168.1.1 255.255.255.0

  At my home I have several client computers and network servers 3.

  Client computers must be able to connect to the internet.

  Server should have the public IP 123.123.123.3 and 192.168.52.3 inside

  Server B must have public IP 123.123.123.4 and 192.168.52.4 inside

  Server C must have public IP 123.123.123.5 and 192.168.52.5 inside

  Server 3 are Web servers and should be accessible from the outside on ports 80 and 443.

  My current setup is:

  See the pixfirewall (config) # executes
  : Saved
  :
  6.3 (5) PIX version
  interface ethernet0 car
  interface ethernet1 100full
  ethernet0 nameif outside security0
  nameif ethernet1 inside the security100
  activate the encrypted password
  encrypted passwd
  pixfirewall hostname
  domain ciscopix.com
  fixup protocol dns-length maximum 512
  fixup protocol ftp 21
  fixup protocol h323 h225 1720
  fixup protocol h323 ras 1718-1719
  fixup protocol http 80
  fixup protocol rsh 514
  fixup protocol rtsp 554
  fixup protocol sip 5060
  fixup protocol sip udp 5060
  fixup protocol 2000 skinny
  fixup protocol smtp 25
  fixup protocol sqlnet 1521
  fixup protocol tftp 69
  names of
  object-group service tcp web
  port-object eq www
  EQ object of the https port
  OUTSIDE of the ip access list allow any host 123.123.123.3
  pager lines 24
  Outside 1500 MTU
  Within 1500 MTU
  IP outdoor 123.123.123.2 255.255.255.248
  IP address inside 192.168.1.1 255.255.255.0
  alarm action IP verification of information
  alarm action attack IP audit
  location of PDM 192.168.1.0 255.255.255.0 inside
  history of PDM activate
  ARP timeout 14400
  Global 1 interface (outside)
  NAT (inside) 1 192.168.1.0 255.255.255.0 0 0
  static (inside, outside) tcp 123.123.123.3 www 192.168.1.3 www netmask 255.255.255.255 0 0
  Access-group OUTSIDE in interface outside
  Route outside 0.0.0.0 0.0.0.0 123.123.123.1 1
  Timeout xlate 0:05:00
  Timeout conn 01:00 half-closed 0:10:00 udp 0: CPP 02:00 0:10:00 01:00 h225
  H323 timeout 0:05:00 mgcp 0: sip from 05:00 0:30:00 sip_media 0:02:00
  Sip timeout - disconnect 0:02:00 prompt Protocol sip-0: 03:00
  Timeout, uauth 0:05:00 absolute
  GANYMEDE + Protocol Ganymede + AAA-server
  AAA-server GANYMEDE + 3 max-failed-attempts
  AAA-server GANYMEDE + deadtime 10
  RADIUS Protocol RADIUS AAA server
  AAA-server RADIUS 3 max-failed-attempts
  AAA-RADIUS deadtime 10 Server
  AAA-server local LOCAL Protocol
  Enable http server
  http 192.168.1.0 255.255.255.0 inside
  http 192.168.2.0 255.255.255.0 inside
  No snmp server location
  No snmp Server contact
  SNMP-Server Community public
  No trap to activate snmp Server
  enable floodguard
  Telnet 192.168.1.0 255.255.255.0 inside
  Telnet 192.168.2.0 255.255.255.0 inside
  Telnet timeout 5
  SSH timeout 5
  Console timeout 0
  Terminal width 80
  : end
  pixfirewall (config) #.

  This acutally configuration only allows connections from the inside to the outside but not from the outside to connect to the server.

  I'm sure miss me something stupid, maybe someone could give me a hint?

  Mike

  Setup looks quite right, assuming that you only test connectivity to Server A (123.123.123.3) as it is the only one configured.

  I suggest that you make 'clear xlate' and 'clear the arp' and test again. I would check to see if your modem has the ARP entry for 123.123.123.3 and it should point to the ethernet0 PIX MAC address.