Nice, you fixed it and laid blame on the network guys at the same time. Well done Webster.
From: [email protected] [mailto:[email protected]] On Behalf Of Webster Sent: Wednesday, January 8, 2014 1:26 PM To: [email protected] Subject: RE: [NTSysADM] Cisco ios version Apparently this is a known issue on the Bluecat appliances. They made a configuration change and now Option 66 and 67 work like a charm. Bluecat doesn't use Options 66 or 67 but they have their own options that work like 66 and 67. Once those options were set, our Citrix stuff is now working. Thanks Webster From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Webster Sent: Wednesday, January 08, 2014 12:53 PM To: [email protected]<mailto:[email protected]> Subject: RE: [NTSysADM] Cisco ios version I was told the original issue was specific to ios and doesn't apply to Nexus. What we have found via Wireshark is that their Bluecat DHCP/DNS appliance is not offering Option 60. This is now back on their team that handles the Bluecat appliances. Thanks Webster From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Don Ely Sent: Wednesday, January 08, 2014 12:42 PM To: ntsysadm Subject: Re: [NTSysADM] Cisco ios version If they are running Nexus switches, that isn't IOS anymore. It's NX-OS... If you can ssh into the equipment, a "sh ver" will tell you what version you're on. For reference, IOS is all the way up to 15.x these days... On Wed, Jan 8, 2014 at 9:13 AM, Webster <[email protected]<mailto:[email protected]>> wrote: They are using Nexus switches with version 6.2 of whatever the ios equivalent is. We have run a Wireshark trace and it looks like the Bluecat DHCP appliance is not issueing DHCP Option 66. It is handing out Option 67. A quick Google search turned up a Lucatel issue where the VoIP phones were also not getting Option 66 from Bluecat DHCP devices. Since Bluecat requires a login in order to access their knowledgebase, have any of you ever run across this issue where a Bluecat DHCP/DNS appliance does not include Option 66 in the DHCP Offer? Thanks Webster From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Webster Sent: Wednesday, January 08, 2014 11:33 AM To: [email protected]<mailto:[email protected]> Subject: RE: [NTSysADM] Cisco ios version No one here on the customer's Citrix or WinTel team know anything about the networking stuff and (obviously) have no access to any of that equipment. So no one here knows what ios version is in use. They could have they most current version. All I know is the CTX article says this bug is an ios issue and is fixed in ios 12.3 or later. If they are on a current version of ios then we need to start looking at other networking issues. We have ruled out issues on the Citrix side. Thanks Webster From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of [email protected]<mailto:[email protected]> Sent: Wednesday, January 08, 2014 11:21 AM To: [email protected]<mailto:[email protected]> Subject: Re: [NTSysADM] Cisco ios version It's old, really old. http://www.cisco.com/en/US/prod/collateral/iosswrel/ps8802/ps6969/ps1835/prod_bulletin0900aecd801eda8a_ps6350_Products_Bulletin.html http://www.cisco.com/en/US/prod/collateral/iosswrel/ps8802/ps6947/ps5187/prod_end-of-life_notice0900aecd8052e110.html Tom Kroll Hinshaw & Culbertson LLP Network Systems & Security Administrator 312 704 3345<tel:312%20704%203345> [email protected]<mailto:[email protected]> From: Webster <[email protected]<mailto:[email protected]>> To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>, Date: 01/08/2014 10:15 AM Subject: [NTSysADM] Cisco ios version Sent by: [email protected]<mailto:[email protected]> ________________________________ I am not Cisco person or a packet head. How do I find what the most current 12.x Cisco ios version available is? At a customer site where we are having an issue with a Citrix product that says a bug is fixed in ios 12.3 or later. Obviously I can't tell an enterprise to update the ios on a core switch but it would be nice to know how old 12.3 is and what the latest 12.x version is. At least we can eliminate that as a potential issue. They have a meeting scheduled with the networking team later today to see what version the switch is on. Thanks Webster Hinshaw & Culbertson LLP is an Illinois registered limited liability partnership that has elected to be governed by the Illinois Uniform Partnership Act (1997). The contents of this e-mail message and any attachments are intended solely for the addressee(s) named in this message. This communication is intended to be and to remain confidential and may be subject to applicable attorney/client and/or work product privileges. If you are not the intended recipient of this message, or if this message has been addressed to you in error, please immediately alert the sender by reply e-mail and then delete this message and its attachments. Do not deliver, distribute or copy this message and/or any attachments and if you are not the intended recipient, do not disclose the contents or take any action in reliance upon the information contained in this communication or any attachments.
