IETF 92 Network Information – Dallas, Texas, US

Terminal Room

The Terminal Room is located in the Brasserie, which is directly behind the Registration desk on the Lobby Level. The Terminal Room is open 24 hours a day beginning Sunday, 22 March, 2015 at 16:00 and ending on Friday, 27 March, 2015 at 15:00. A help desk is being provided, hours are listed below. The room itself consists of approximately 100 seats, providing some wired access and 110v power ports. There is also an HP Officejet Pro 8610 (N911a) printer available.

Please note that this terminal room has no terminals, PCs, or other user-accessible machines. It is simply a place to get power, wired Internet access, help desk support, or print documents.

When using the Ethernet connections in the Terminal Room, IPv4 addressing is provided via DHCP. Please use Dynamic Auto-configuration for IPv6. A stateless DHCPv6 server or RDNSS will provide network information. To cut down on the mess, ethernet cables have not been installed to every seat in the Terminal Room. If you need a cable, please ask at the Help Desk.

Please note that at the request of the IETF Chair, demonstrations are no longer permitted in the Terminal Room.

Help Desk

A help desk is being provided and will be staffed the following hours:

Sunday 16:00 to 19:00
Monday 8:00 to 20:00
Tuesday 8:00 to 18:00
Wednesday 8:00 to 20:00
Thursday 8:00 to 20:00
Friday 8:00 to 16:00

NOC and Ticketing

There are several ways to communicate with the NOC staff.

  • Submit a new trouble ticket via the trac web interface. Filling in the following fields: "My MAC Address", "My Current Location", and "My OS" may expedite ticket processing. If you have an existing account on you can use your established credentials (email address and tools password) to log in.
  • Send an email to with as much detail regarding your issue and configuration as possible.
  • If you're on site and need direct network assistance (i.e - you have no network) please go to the helpdesk, which is located in the Terminal Room.
  • Use the Jabber room at noc @ to report issues or communicate with the NOC.

You can also use trac to review outstanding tickets before reporting an issue or to update outstanding tickets.

External Connectivity

The IETF 92 network connects to the Internet via two 1Gb/s links provided by Time Warner Cable. The IETF uses, and for IPv4 and 2001:67c:1230::/46, 2001:67c:370::/48 and 2001:df8::/32 for IPv6. We are supplying bandwidth for the conference space, as well as wireless and wired connections in the guest rooms.

Meeting Room Wireless

An 802.11 a/g/n/ac wireless network is provided throughout the venue on both the 2.4 and 5 GHz bands, in conjunction with IPv4 and IPv6 addressing options. We have made changes to the SSIDs. For complete details, please see Chris Elliott's email sent to the 92all list on 19 March.

The main “ietf” wireless network is now encrypted; when prompted for credentials, enter ietf for both the username and password.

Here’s a quick summary of the new network layout:

SSID Description Encrypted Frequencies IP Versions
ietf Our default network yes 5Ghz only v4 and v6
ietf-legacy For legacy and unencrypted use no 2.4 and 5Ghz v4 and v6
ietf-2.4ONLY An encrypted network for 2.4Ghz users yes 2.4Ghz only v4 and v6
ietf-v6ONLY For users wanting a pure IPv6 yes 5Ghz only v6 only
ietf-nat64 IPv6 stack with NAT64 to access IPv4 resources yes 5Ghz only v6 with NAT64 & DNS64
eduroam educational users yes 2.4 and 5Ghz v4 and v6

All networks marked as encrypted will offer layer 2 security. This is done using WPA enterprise with 802.1X (PEAP or TTLS) authentication and AES or TKIP encryption. As usual, we are all using the same credentials (user “ietf”, password “ietf”), yet each user will get unique session encryption keys. Our Radius authentication servers use a certificate that you can verify by going to this page:

Note: Some users are having problems using Intel Centrino cards and the IETF network. Please see:

Guest Room Access

The IETF Network is being extended to the guest rooms in the Fairmont. *Note* that while we are using the IETF meeting network for Internet connectivity, we are using the hotel's infrastructure (Ruckus access points) for the delivery to the guest rooms, so there are limits to the improvements we can effect. We recommend using the wired connection if you experience poor connectivity in your guest room.

Wired: IPv4 and IPv6 and provided via the wired connection in your room.


In the guest room areas you should find the “ietf-hotel” SSID. This network is 2.4GHz/5GHz (though 5GHz might be more spotty in certain areas) , and is being delivered via the Fairmont's Ruckus access points. We encourage heavy users and/or those having poor coverage to use the wired connection.


If you have trouble using any of the Public or Guest Room services, please try to switch to the hotel SSIDs ("FAIRMONT") or the hotel wired port. If that doesn’t work, please contact the Fairmont support as listed in your room. If things are working fine on the hotel offerings but not on the IETF SSIDs/ports, please do contact us in the Terminal Room (Brasserie) or via tickets @ and we’ll be glad to help!


There is a printer in the Terminal Room and is available to all IETF users. The printer is an HP Officejet Pro 8610 and is accessible via LPD, Bonjour, standard TCP/IP on port 9100. The hostname for it is

Name Model Capabilities IPv4 Address IPv6 Address Notes Drivers HP Officejet Pro 8610 Inkjet w/Duplexer 2001:67c:370:128:a65d:36ff:fe32:44ba Bonjour name: term-printer Printer Drivers

Instructions for Mac OS X using Bonjour auto-setup (DNS-Based Service Discovery)

(Note that this method is not available if you have configured an explicit DNS search list. Please see below for the manual configuration instructions.

  1. Open System Preferences -> Print & Fax -> "+" below printer list
  2. Choose "Default" in the top-menu.
  3. You should see the printers discovered by Bonjour. Pick the right one.
  4. Enjoy hassle-free printing.

Instructions for Mac OS X using manual configuration

  1. Open System Preferences -> Print & Fax -> "+" below printer list
  2. Select the "IP" icon at the top of window
  3. Select the "HP Jetdirect - Socket" from the drop down
  4. Enter "" in the Address field. Leave the Queue field blank.
  5. Print Using should autopopulate
  6. Click Add

Instructions for Windows 7

  1. If you haven't printed on the selected printer before, you may need to download and install the driver using one of the links above.
  2. When you come to the installer page asking you to choose the "Network Type" -- choose "Wired (Ethernet)."
  3. If you get the "Unable to Find the Printer" page, simply enter the IP address of the printer {} in the box in the bottom-right corner and click "Search."
  4. Ignore the "The Printer and Computer are Connected to Different Routers" message and select "Next."
  5. The driver will finish it's installation and you *should* see a "Successful Network Installation" message.
  6. The fax feature is *NOT* enabled, so you may cancel the fax installation portion.
  7. Registering the printer is not necessary.
  8. You're printer is now ready to use, and you can find it by going to Start -> Devices and Printers. No need to print a test page.

Instructions for Windows using HP printing framework

  1. Download HP Universal Print Driver for Windows (see above)
  2. Select "Dynamic installation" and wait until all drivers are copied (takes about 5-10 minutes)
  3. Add printers by using their IP addresses in "control panel" appearing when select Start -> Settings -> Printers & faxes -> "HP Universal Printing PS" -> Properties

HP Eprint

  1. Find the printer's email address on a label pasted to the printer.
  2. Email the document to that address.
  3. Retrieve your print out from the Terminal Room

Scanning Services

  1. In a browser (Firefox appears to be the only browser that renders the pages properly) go to:
  2. Select the "Scan" tab located at the top of the page.
  3. Select Document Type "PDF" in the drop-down menu
  4. Place pages to be scanned face-up in the page feeder on top of the printer.
  5. Press "Start Scan" on the web page.
  6. Once the Scan has completed a window to the right will display the PDF contents of the scan.
  7. Using the scroll bar in the Image Preview - Scroll to the right and select the "Download" button


The following network services are provided:

Service Address Notes
SMTP Will provide SMTP relay for anything within the IETF network
NTP A stratum 2 time service is provided via IPv4 and IPv6 unicast
DNS Validating recursive resolvers. The domain name is

These services are being provided from both of the following servers: / [2001:67c:370:229::6]
or / [2001:67c:370:229::7]


There is a geolocation feed published here: Geolocation service for temporary networks is often hit or miss. Suggestions/assistance is welcomed.

MAC Privacy trial @IETF92

After doing MAC Privacy trials at IETF91 in Honolulu and at the recent IEEE 802 meeting in Berlin, we are going to run the trial/experiment at IETF92 in Dallas. This time the trial will run on the main IETF wireless network, so no-special-SSID will be broadcast. Users participating in the trial will be assigned a different DHCP lease. Note that this time there is also support for some mobile devices:

Please participate in the trial, as we need more users to make this experiment a success!


The terminal room and IETF network are made possible by the generous contributions by a number of companies and by the tireless efforts of our volunteer team. If you see any of these people in the halls, please be sure to thank them for all their work!


  • Juniper Networks
  • Cisco


  • Time Warner Cable


  • Hirochika Asai (WIDE)
  • Joe Clarke (Cisco)
  • Chris Elliott
  • Bill Fenner (Arista - in absentia)
  • Joel Jaeggli (Fastly)
  • Bill Jensen (University of Wisconsin –Madison)
  • Hans Kuhn (NSRC)
  • Warren Kumari (Google)
  • Lucy Lynch (NSRC - in absentia)
  • Jim Martin (Internet Systems Consortium)
  • Ryo Nakamura (WIDE - in absentia)
  • Karen O'Donoghue (ISOC)
  • Bjoern A. Zeeb (Cambridge University – in absentia)


  • Rick Alfvin
  • James Dishongh
  • Brandon Height
  • Nick Kukich
  • Edward McNair
  • Con Reilly
Last modified 6 years ago Last modified on 24 Mar 2015, 18:57:44