To be sure on Q2, you would have to look at the specs of your modem and router and possibly check their configuration or default behaviour. The fact that the modem can see IP addresses does not mean it looks at them or uses them in any way, that depends on the type of modem and what other features are in the device called a modem. But if your router is performing network address translation (NAT), it will replace the source IP address on the outgoing packets to the router with a different address, hiding the IP addresses of the devices (the original source addresses) from the modem. Q2: If the router is doing only routing, the modem will see the IP addresses of the devices since source and destination IP addresses in the packet remain unchanged.
When a packet is routed from a device to the modem, the router will create a new ethernet frame to forward the packet to the modem, using its own MAC as the source address. This can be contrasted to a programmed address, where the host device issues commands to the NIC to use an arbitrary address.Q1: The modem does not see the MAC addresses of the devices connected to the router. It may also be known as an Ethernet hardware address (EHA), hardware address or physical address (not to be confused with a memory physical address). If assigned by the manufacturer, a MAC address usually encodes the manufacturer's registered identification number and may be referred to as the burned-in address (BIA). The online MAC Address Lookup is used to find the real manufacturer or vendor OUI (Organizationally Unique Identifier) of your network card based on your network card MAC address. MAC addresses are most often assigned by the manufacturer of a network interface controller (NIC) and are stored in its hardware, such as the card's read-only memory or some other firmware mechanism. Logically, MAC addresses are used in the media access control protocol sublayer of the OSI reference model. MAC addresses are used as a network address for most IEEE 802 network technologies, including Ethernet and Wi-Fi. You will be a list of all the network interfaces with their MAC addresses (Ethernet Address).Ī media access control address (MAC address) of a computer is a unique identifier assigned to network interfaces for communications at the data link layer of a network segment.Type this in the Terminal:networksetup -listallhardwareports.Go to Utilities (Finder > Utilities OR command + shift + u) and start the Terminal app.Another trick (not fool-proof) is to ping the broadcast IP address and try the command again. If you happen to know the IP address ping that and run the command again.
When enabled, a CM can engage in transmit side equalization (pre-equalization) to mitigate the effects of certain impairments in the cable plant, such as in-channel tilt issues, and group delay. Step 3 Click Status on the left side, and then you can see the MAC address on. The MAC address you are looking for is no longer stored in the CAMs table. None The DOCSIS 1.1 and 2.0 specifications allow a CMTS to specify a pre-equalization coefficient in the RNG-RSP mac messages it forwards to the CMs.
Step 2 Type the username and password in the login page, the default username and password both are admin.
How to find the MAC address in Unix or Linux? You should see the MAC address in this format 00:00:00:00:00:00Ģ.In the DOS prompt, type ipconfig /all and press ENTER.This tool support most of the common formats such as 00-10-fa-c2-bf-d5, 00:10:fa:c2:bf:d5, 5, 00 10 fa c2 bf d5, or 0010fac2bfd5.Ĭlick the validate button, and wait for a moment, It will show the result.
If you want to find the manufacturer a certain MAC address belongs to, enter your full MAC address or first 6 hexadecimal digits.
Belkin : Find Maintenance on the left side of the admin page. looked at the ipv4 ip address and (I think if memory serves me) the default gateway had no IP address.
The had me look at some settings in the command window using the ipconfig command. About 3 hours later, my internet went out again. Alternatively, from the Roku home screen, select Settings > About. The first time, my ISP reset my modem remotely and all was fine.
Traffic coming in from a specified MAC address will be filtered depending upon the policy. The router uses the MAC address of a computer or device on the network to identify it and block or permit the access. You’ll see it listed next to the CM MAC label here. Configuring MAC Address Filtering MAC address filtering allows you to block traffic coming from certain known machines or devices. How to use this tool to find the manufacturer and other details from MAC address? Roku : The mac address is printed on the bottom or back of the Roku player. For your xFi Gateway, navigate to Connect, tap See Network, select your Gateway, then select Gateway Details.