That is one of several blogs/sites I read before sending this mail Snippet from the blog
In my case, the Fedora DHCP client did not send any DHCP client-ID in the DHCPREQUEST message. One would think that the IOS DHCP server would use the MAC address as the client-ID, but that's not the case. You have to configure the *hardware-address *parameter in the host DHCP pool to match the MAC address of the DHCP client with the pool and the static IP address: His client doesn't send client identifier which means that's a bootp request. With regards Kings On Mon, Apr 16, 2012 at 11:41 PM, Joe Astorino <[email protected]>wrote: > FYI a good read on the topic from Ivan the great: > http://blog.ioshints.info/2008/06/static-dhcp-assignment-for-clients.html > > > On Mon, Apr 16, 2012 at 2:06 PM, Joe Astorino > <[email protected]>wrote: > >> I never got that impression. Like I said, I have multiple clients setup >> on a Cisco DHCP server that use DHCP client and are configured using >> hardware address on the server side. One example is my HP 4050N network >> printer. The printer setup specifically has it configured for DHCP on and >> BOOTP off. It is using hardware address in the configuration and works fine >> >> >> On Mon, Apr 16, 2012 at 12:32 PM, Kingsley Charles < >> [email protected]> wrote: >> >>> So, "hardware address" can be only used with bootp request. >>> >>> With regards >>> Kings >>> >>> On Mon, Apr 16, 2012 at 7:17 PM, Joe Astorino <[email protected] >>> > wrote: >>> >>>> Hi, >>>> >>>> It really depends more on the client making the DHCP request. If it is >>>> a windows machine, you will need to configure the client-identifier. UNIX >>>> / Linux variants and most others things can use hardware address fine. For >>>> example, I have a LAN setup right now where all the windows machines are >>>> hard set using client id and network printers, unix machines, etc use >>>> hardware address just fine. They all use DHCP and not BOOTP >>>> >>>> >>>> On Sun, Apr 15, 2012 at 12:08 PM, Kingsley Charles < >>>> [email protected]> wrote: >>>> >>>>> Hi all >>>>> Hi all >>>>> >>>>> If I want to configure manual binding that doesn't working with >>>>> hardware address. Instead, if I specify the client identifies, it works. >>>>> >>>>> ip dhcp pool cat >>>>> host 10.20.30.40 255.255.255.0 >>>>> hardware-address 0001.0002.0003 >>>>> >>>>> >>>>> The snippet below, claims that hardware address can be used with bootp >>>>> requests only. Logically, I feel that should be the case because bootp >>>>> request doesn't have options field. In the case of DHCP request, the >>>>> option >>>>> 61 is used to carry client identifier. Hence, it seems, the IOS expect >>>>> client identifies to be configured, if it a dhcp request. >>>>> >>>>> Comments please. >>>>> >>>>> >>>>> Snippet from >>>>> http://www.cisco.com/en/US/docs/ios/12_2/ip/configuration/guide/1cfdhcp.html#wp1001108 >>>>> >>>>> Router(dhcp-config)# client-identifier unique-identifier >>>>> >>>>> Specifies the unique identifier for DHCP clients. This command is used >>>>> for DHCP requests. >>>>> >>>>> Router(dhcp-config)# hardware-address hardware-address type >>>>> >>>>> (Optional) Specifies a hardware address for the client. This command >>>>> is used for BOOTP requests. >>>>> >>>>> With regards >>>>> Kings >>>>> >>>>> >>>>> _______________________________________________ >>>>> For more information regarding industry leading CCIE Lab training, >>>>> please visit www.ipexpert.com >>>>> >>>>> Are you a CCNP or CCIE and looking for a job? Check out >>>>> www.PlatinumPlacement.com >>>>> >>>> >>>> >>>> >>>> -- >>>> Regards, >>>> >>>> Joe Astorino >>>> CCIE #24347 >>>> http://astorinonetworks.com >>>> >>>> "He not busy being born is busy dying" - Dylan >>>> >>>> >>> >> >> >> -- >> Regards, >> >> Joe Astorino >> CCIE #24347 >> http://astorinonetworks.com >> >> "He not busy being born is busy dying" - Dylan >> >> > > > -- > Regards, > > Joe Astorino > CCIE #24347 > http://astorinonetworks.com > > "He not busy being born is busy dying" - Dylan > >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
