Thanks for that Aaron. Now at least I know that I'm not crazy. I'll just have to assume Cisco won't throw something in the lab that would require option 60 actually functioning on an IOS device.
Jeff On Sun, May 6, 2012 at 3:00 PM, Aaron Leonard <[email protected]> wrote: > Jeff, > > The fact is that the IOS DHCP server does not support VCI functionality. > If you're interested in this feature, you can track CSCsq30317, which I > filed 4 years ago (but no activity on it yet.) > > Aaron > > ---- > > Related-file:: Added 2008-05-15 by aaron ::Release-note > > <B>Symptom:</B> > > Some DHCP servers can transmit different option 43 (Vendor Specific > Information) values, depending on the option 60 (Vendor Class Identifier) > values received from the clients. See RFC-2132, sec. 9.13. > > The IOS DHCP server cannot. As a result, a given IOS DHCP server > scope must return the same option 43 value to all clients that it > serves from that scope, regardless of those clients' VCIs. > > <B>Conditions:</B> > > Multiple client types in the same subnet, which desire different > option 43 values. > > <B>Workarounds:</B> > > 1. In the general DHCP pool for the subnet, configure the desired > option 43 value for the most prevalent client type. For each other > client, give it its own separate scope (using the specific client-id > for each client), with its preferred option 43 value. > > 2. Put the separate client types into separate VLANs/subnets, each > with a separate DHCP pool with its unique option 43 value. > > 3. With IOS 12.4(11)T or above, DHCP requests with different > option 60 values can be relayed to different DHCP servers. See > "Configuring DHCP Relay Class Support for Client Identification" > in the IOS documentation. > > <B>Further Problem Description:</B> > > Some DHCP client implementations may misbehave when receiving DHCP > option 43 values that they cannot understand. Customers encountering > such problematic implementations should contact technical support for > that software to learn about the availability of a fix. See, for example, > > http://support.microsoft.com/**kb/953761<http://support.microsoft.com/kb/953761>. > > ---- > > On 5/6/2012 9:00 AM, > ccie_wireless-request@**onlinestudylist.com<[email protected]>( > ccie_wireless-request@**onlinestudylist.com<[email protected]>) > wrote: > >> Send CCIE_Wireless mailing list submissions to >> ccie_wireless@onlinestudylist.**com<[email protected]> >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://onlinestudylist.com/**cgi-bin/mailman/listinfo/ccie_** >> wireless<http://onlinestudylist.com/cgi-bin/mailman/listinfo/ccie_wireless> >> or, via email, send a message with subject or body 'help' to >> >> ccie_wireless-request@**onlinestudylist.com<[email protected]> >> >> You can reach the person managing the list at >> >> ccie_wireless-owner@**onlinestudylist.com<[email protected]> >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of CCIE_Wireless digest..." >> >> >> Today's Topics: >> >> 1. DHCP option 60 on IOS help (Jeff Rensink) >> 2. Re: DHCP option 60 on IOS help (Blake Krone) >> 3. Re: DHCP option 60 on IOS help (Nawar Al Nomani) >> >> >> ------------------------------**------------------------------** >> ---------- >> >> Message: 1 >> Date: Sat, 5 May 2012 21:24:25 -0500 >> From: Jeff Rensink<[email protected]> >> To: ccie_wireless@onlinestudylist.**com<[email protected]> >> Subject: [OSL | CCIE_Wireless] DHCP option 60 on IOS help >> Message-ID: >> <CAG4_**piUGjqfO1ZBR61ib0O0PzJQ66XzXim** >> [email protected].**com<cag4_piugjqfo1zbr61ib0o0pzjq66xzximrfi8_xh6czuun...@mail.gmail.com> >> > >> Content-Type: text/plain; charset="iso-8859-1" >> >> I'm running drills on controller discovery and I'm hitting an issue that I >> can't deem to solve. I'm trying to use my 3560E as the DHCP server. It >> works fine just doing option 43. But when I try and throw in option 60 to >> target a specific AP model, it still advertises the controller IP to all >> models. I have verified this with a packet capture showing the DHCP >> option >> 43 info in the DHCP ACK packet from the switch. >> >> My setup is a 3560E layer 3 switch with a 1131, 1142, 1242, and 2- 1252 >> APs. The DHCP config is shown below. I did try 2 different revs of code >> in case it was a bug (12.2.44 SE# and 12.2.58 SE#). When all 5 APs boot, >> they all get the option 43 info. Can anyone see if I'm doing something >> wrong? Has anyone else made this work as advertised in IOS? >> >> ip dhcp excluded-address 10.10.114.1 10.10.114.99 >> ip dhcp excluded-address 10.10.114.160 10.10.114.255 >> >> ip dhcp pool vlan114 >> network 10.10.114.0 255.255.255.0 >> default-router 10.10.114.1 >> option 43 hex f104.0a0a.700a >> dns-server 10.10.210.6 >> domain-name rensink.local >> option 60 ascii Cisco AP c1250 >> >> Jeff Rensink >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL:</archives/ccie_wireless/**attachments/20120505/42ac5166/** >> attachment-0001.html> >> >> ------------------------------ >> >> Message: 2 >> Date: Sat, 5 May 2012 23:31:10 -0500 >> From: Blake Krone<[email protected]> >> To: Jeff Rensink<[email protected]> >> Cc: ccie_wireless@onlinestudylist.**com<[email protected]> >> Subject: Re: [OSL | CCIE_Wireless] DHCP option 60 on IOS help >> Message-ID: >> <CAE8-+duCPL=t30rSirWWUv7OAprw**h23VoZ7kkja0BKpSp+uALw@mail.** >> gmail.com <t30rsirwwuv7oaprwh23voz7kkja0bkpsp%[email protected]>> >> Content-Type: text/plain; charset="iso-8859-1" >> >> Jeff have you tried with quotes? option 60 ascii "Cisco AP c1250" >> >> On Sat, May 5, 2012 at 9:24 PM, Jeff Rensink<[email protected]> >> wrote: >> >> I'm running drills on controller discovery and I'm hitting an issue that >>> I >>> can't deem to solve. I'm trying to use my 3560E as the DHCP server. It >>> works fine just doing option 43. But when I try and throw in option 60 >>> to >>> target a specific AP model, it still advertises the controller IP to all >>> models. I have verified this with a packet capture showing the DHCP >>> option >>> 43 info in the DHCP ACK packet from the switch. >>> >>> My setup is a 3560E layer 3 switch with a 1131, 1142, 1242, and 2- 1252 >>> APs. The DHCP config is shown below. I did try 2 different revs of >>> code >>> in case it was a bug (12.2.44 SE# and 12.2.58 SE#). When all 5 APs boot, >>> they all get the option 43 info. Can anyone see if I'm doing something >>> wrong? Has anyone else made this work as advertised in IOS? >>> >>> ip dhcp excluded-address 10.10.114.1 10.10.114.99 >>> ip dhcp excluded-address 10.10.114.160 10.10.114.255 >>> >>> ip dhcp pool vlan114 >>> network 10.10.114.0 255.255.255.0 >>> default-router 10.10.114.1 >>> option 43 hex f104.0a0a.700a >>> dns-server 10.10.210.6 >>> domain-name rensink.local >>> option 60 ascii Cisco AP c1250 >>> >>> Jeff Rensink >>> >>> >>> ______________________________**_________________ >>> 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 >>> >>> >>> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL:</archives/ccie_wireless/**attachments/20120505/b1d66298/** >> attachment-0001.html> >> >> ------------------------------ >> >> Message: 3 >> Date: Sun, 6 May 2012 09:54:58 +0400 >> From: Nawar Al Nomani<nawar.alnomani@gmail.**com<[email protected]> >> > >> To: Jeff Rensink<[email protected]> >> Cc: ccie_wireless@onlinestudylist.**com<[email protected]> >> Subject: Re: [OSL | CCIE_Wireless] DHCP option 60 on IOS help >> Message-ID: >> <CACXrXW0zT-pc-HSRSUvroeB-**MpGNND5_AZo2KLH41rZhVHB0jg@** >> mail.gmail.com<cacxrxw0zt-pc-hsrsuvroeb-mpgnnd5_azo2klh41rzhvhb...@mail.gmail.com> >> > >> Content-Type: text/plain; charset="iso-8859-1" >> >> Hi Jeff, >> >> you may try the following syntax format& commands order& hopefully it >> will work for you. >> >> though not sure if this is the issue, but in all my deployments I use the >> following format& it always works fine. >> >> ip dhcp pool vlan114 >> network 10.10.114.0 255.255.255.0 >> option 60 ascii "Cisco AP c1250" >> option 43 hex f104.0a0a.700a >> default-router 10.10.114.1 >> dns-server 10.10.210.6 >> domain-name rensink.local >> >> >> Regards, >> Nawar Al Nomani >> >> >> >> On Sun, May 6, 2012 at 6:24 AM, Jeff Rensink<[email protected]> >> wrote: >> >> I'm running drills on controller discovery and I'm hitting an issue that >>> I >>> can't deem to solve. I'm trying to use my 3560E as the DHCP server. It >>> works fine just doing option 43. But when I try and throw in option 60 >>> to >>> target a specific AP model, it still advertises the controller IP to all >>> models. I have verified this with a packet capture showing the DHCP >>> option >>> 43 info in the DHCP ACK packet from the switch. >>> >>> My setup is a 3560E layer 3 switch with a 1131, 1142, 1242, and 2- 1252 >>> APs. The DHCP config is shown below. I did try 2 different revs of >>> code >>> in case it was a bug (12.2.44 SE# and 12.2.58 SE#). When all 5 APs boot, >>> they all get the option 43 info. Can anyone see if I'm doing something >>> wrong? Has anyone else made this work as advertised in IOS? >>> >>> ip dhcp excluded-address 10.10.114.1 10.10.114.99 >>> ip dhcp excluded-address 10.10.114.160 10.10.114.255 >>> >>> ip dhcp pool vlan114 >>> network 10.10.114.0 255.255.255.0 >>> default-router 10.10.114.1 >>> option 43 hex f104.0a0a.700a >>> dns-server 10.10.210.6 >>> domain-name rensink.local >>> option 60 ascii Cisco AP c1250 >>> >>> Jeff Rensink >>> >>> >>> ______________________________**_________________ >>> 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 >>> >>> >>> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL:</archives/ccie_wireless/**attachments/20120506/3b437f54/** >> attachment-0001.html> >> >> ------------------------------ >> >> ______________________________**_________________ >> CCIE_Wireless mailing list >> CCIE_Wireless@onlinestudylist.**com <[email protected]> >> http://onlinestudylist.com/**cgi-bin/mailman/listinfo/ccie_**wireless<http://onlinestudylist.com/cgi-bin/mailman/listinfo/ccie_wireless> >> >> >> End of CCIE_Wireless Digest, Vol 37, Issue 3 >> ********************************************** >> >> ______________________________**_________________ > 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 >
_______________________________________________ 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
