Sometimes some clients can't get IP address from DHCP server I shutdown the interface, clear the portsecurity MAC address and finally change the port of the client but he can't get IP address. After a moment the client can get the IP address this problem is very strange. Simply go to Address Leases under the Scope and you can view both the client IP address and the Unique ID, which is the MAC address. If you have a wireless router at home, it will vary depending on the brand (Belkin, Netgear, LinkSys, etc). You can run ncpa.cpl and check which NICs are disabled. Further, I have received comments that this command does not help identify the mac address for a specific device. For example, if I need to get the mac address for my WiFi card, output of getmac command is not helpful. We can use ipconfig command to deal with this.
Active4 years, 5 months ago
This question already has an answer here:
Situation: unconfigured network interface
eth1 .As root, I give command dhclient eth1 , and get an IP.Now I want to change this IP from client side, force DHCP client to get a new address.
Answers of this question only have command to release and re-aquire the lease, but I get the same IP every time, so it does not answer the question.
I am looking for a generic Linux solution, not dependent on this exact environment, but just for reference, this is my current environment:
Also I am aware of following solutions which would work with above: use the VM to set a new MAC address, so it would probably get a new IP too, or simply manually configure another IP for the host-only network. But I am specifically asking how to force a new DHCP IP from client side without rebooting, if such a thing is possible with DHCP at all.
Global vpn client for mac download. In theory you can get an LT2P connection setup between leopard and the sonicwall; I don't know anyone who has. Yes, at a $100 it stings when PC users get one for free. After a lot of experimentation and frankly wasted time I settled on the equinux product. Also, the equinux product can do some pretty cool things a plain lt2p connection can't; though that may not be an issue for you. But on the upside, for a $100 you get a bullet proof VPN client that's very easy to configure and push to users.
Alternatively, if someone can confirm that DHCP does not support client wanting an IP address change, preferably with a reference, that would be valid answer, too.
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hydehyde
![]() marked as duplicate by Community♦Apr 1 '15 at 9:21
This question has been asked before and already has an answer. Palo alto global vpn client. If those answers do not fully address your question, please ask a new question.
migrated from serverfault.comApr 1 '15 at 8:11
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1 Answer
The DHCP server decides which address it gives to which client. The client can only release and renew it's address, and not ask the DHCP server for a different address.
Most DHCP servers hand out the same ipaddress to a client it has seen before when the ipaddress is not in use at the moment.
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It is possible to ask the server for a specific ipaddress, after the current address is released (How to request a specific IP address from DHCP server?) although the decision to give you this or a different address remains with the server.
Dhcp Client Id On A Mac
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Discord Client Id
Erwin VrolijkErwin Vrolijk
Mac Asking For Dhcp Client Id Change Ip AddressNot the answer you're looking for? Browse other questions tagged linuxdhcp or ask your own question.Comments are closed.
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