MAC addresses can be changed manually with the ifconfig command for tasks such as 'MAC Cloning' that may be required by DSL modems or interface bonding or similar. The name will change if the Ethernet card is replaced or the machine is cloned to new hardware. Obviously this only works for machines on the same subnet. Grep -v 'mac.local #DYN' /etc/hosts > /etc/hosts.new Of course it'll allocate it too as a side effect. With outside help you can do the lookup on the DHCP server this DHCP client for example lets you query any MAC want. NOTE: this works even if they ignore PING packets because they can't ignore the ARP requests that are sent out first. There is even a special command for this arp-scan -localnet which forgets to do the PING. These can be identified because they start with the number '10,' or '192. However, when you are using Wi-Fi or another type of local area network, you will be assigned a local address that only works on that network. ![]() If you try to ping every (local) IP address your arp table arp -a will include all the MAC addresses and their assigned IPs. If you are connected with a mobile device to a cell phone network, you are usually assigned an IP address directly. But, the only problem, i can't figure out is unaccessible port 3000. Note, that i have set the name of my mac to 'iMac', which is equivalent to ip192.168.123.1. OTOH, if you really do want the IP address assigned to a particular MAC address the best you're going to do without outside help is to scan the subnet. When on the Mac i turn the 'Shared Web' on, the address ' will get accessible from WinXP and Mac. ![]() everything is assigned an IP with dhcp but that IP never changes. That way you have the best of both worlds. The only way I've found to get around this is to make your DHCP server always assign a specific IP address to every device you have. Instead it makes the assumption that are aren't enough IP addresses available and preferentially reuses addresses. Try finding out your Macs local IP address and accessing the webpage on your VM using that address. But it never uses this information to keep the same devices on stable IP addresses. 5,069 8 27 37 3 What you are looking for is not your Mac IP address but the public IP address your ISP attributed to the Internet interface of your router. This program records the Ethernet address of every device it has ever seen and the IP address that it assigned to it. I think you're running into what I believe is a serious mis-feature of the isc-dhcp server.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |