It gets complicated when people try to use 2 and 3 scopes. People only having an address pool of maybe 5 but then trying to connect 6 clients. The security issue on wireless of a neighbour cracking your wpa and getting dhcp to hand out credentials. Every computer gets a different IP every day, can be annoying as some network software wants to work with ip address and not computer names, then you have to go to the computer everyday to get the new IP (though you'd just put this computer static)... Cant think of anymore off hand.
It can if the administrator of the DHCP server has input incorrect values. DHCP is to provide a device with answers to commonly asked questions that it will need to correctly function in a network. If you can't get a DHCP address and everybody else can the problem is on your end most likely.
The ISR router acts as both a DHCP client and server.
I'm not sure which dongle you are talking about... But if you meant a wireless adapter, then here is the answer. DHCP has nothing to do which dongle you are using. What matters is which wireless network is supported by your router and the wireless adapter. If they do not share common network standard they are not going to work together. Also you need to make sure that your router is configured to use DHCP. As well as your wireless adapter is configured to use DHCP router. If you have problems contact me I'll try to help you.
The port 67 and port 68 are used by DHCP and the DHCP clients.
dhcp has to be authorized
The use of a DHCP relay agent is an agent that relays DHCP between DHCP clients and DHCP servers on different IP networks. The DHCP relay agent is compliant with RFC 1542.
router (config)# ip dhcp servicerouter (dhcp-config)# ip dhcp pool router (dhcp-config)# network
Then any computer that is turned on - while the DHCP server is down - can't get an IP address, and therefore can't communicate on the network. Also, a DHCP lease may expire - the computer got the IP address for 24 hours, for example, and the time elapses. Same problem.
(DHCP) Dynamic host Configuration Protocol. The Default Port Number is: for DHCP client : 546 for DHCP server : 547
yes DHCP require the authorization of the dhcp server before IP addresses can be allocated because until we authorize DHCP server the network does not know who is the dhcp server for the subnet. The DHCP server broadcasts the information to all.
Those are the four phases of acquiring an IP address via DHCP. More information would be needed to indicate which of the 4 phases are being used at this point.
dhcp-client