IETF Meeting Network Information

The dedicated IETF Network Operations Center (NOC) team works with meeting venues before and during each meeting and hackathon to engineer and deploy a network free and unfiltered WiFi in every IETF meeting venue.

External Connectivity

The IETF uses the following network prefixes:

  • 2001:67c:370::/48
  • 2001:67c:1230::/46
  • 31.133.128.0/18
  • 31.130.224.0/20

The IETF NOC supplies connectivity for the conference space and the venue hotel.

Meeting Room Wireless

WiFi (802.11 a/g/n/ac/ax) is provided throughout the meeting areas on 2.4 and 5GHz bands with IPv4 and IPv6.

The IETF meeting WiFi is WPA3 PSK with a fallback to WPA2. While we'd like to be able to only do WPA3, we've discovered that many devices don't yet support it, so we currently are using Transition mode (fallback to WPA2).

Most users should choose the 'ietf' SSID:

password: ietfietf

Here’s a quick summary of the available WiFi networks:

SSID Description Frequencies IP Versions
ietf Default network 5Ghz only v4 and v6
ietf-ipv6-mostly IPv6-Only Preferred with Option for DHCPv4 [RFC 8925] 5Ghz only v6
eduroam Educational users 2.4Ghz and 5Ghz v4 and v6

The WiFi network implements two BCP38-like filters:

  • Packets from manually configured IPv4 addresses that are not assigned by DHCP are dropped. DHCP packets are snooped by our wireless LAN controllers to perform this filtering.
  • Packets from IPv4 and IPv6 addresses that cannot be resolved via ARP/ND are filtered out. Proxy ARP/ND is performed by our wireless LAN controllers for this filtering.

Shared Workspace Wired

When using the Ethernet connections in the Shared Workspace, IPv4 addresses are provided by DHCP. Please use Stateless Auto-configuration for IPv6 (SLAAC). A DHCPv6 server or RDNSS will provide network information.

Help Desk

If you are onsite and need direct network assistance (i.e., you have no network), please go to the Help Desk.NOC support is provided next to the IETF Registration Desk and will be staffed during hours onsite IETF registration is open.

To communicate with the NOC staff, send an email to support@ietf.org with as much detail regarding your issue and configuration as possible.

Please provide the following information:

  • MAC Address
  • Current Location
  • Device type and operating system
  • Description of the issue

This information will expedite ticket processing.

Services

The following network services are provided on the IETF meeting network:

Service Address Notes
NTP ntp.meeting.ietf.org A stratum 2 time service is provided via unicast IPv4 and IPv6
DNS ns1.meeting.ietf.org ns2.meeting.ietf.org Validating recursive resolvers. The local domain is meeting.ietf.org.

On the 'ietf' SSID, these services are provided by the following servers:

Name IPv4 IPv6
services-1.meeting.ietf.org 31.130.229.6 2001:67c:370:229::6
services-2.meeting.ietf.org 31.130.229.7 2001:67c:370:229::7

On the 'ietf-ipv6-mostly' SSID, these services are provided by the following servers:

Name IPv6
services-1.meeting.ietf.org 2001:67c:370:229::9
services-2.meeting.ietf.org 2001:67c:370:229::10

Geolocation

The IETF NOC publishes a geolocation feed for the IETF meeting network.

Geolocation service for event networks is often incorrect. Suggestions and assistance are welcomed.

Experiments

Experiments on the IETF network need to be approved by the IETF Chair. For IETF 122, no network experiments were requested.

Thanks

The IETF network is made possible by our dedicated volunteer team, some of whom have the support of their employers. If you see any of these amazing volunteers in the halls, please be sure to thank them for their hard work and commitment!

Volunteers:

  • Bill Fenner (Arista)
  • Bill Jensen (University of Wisconsin–Madison)
  • Clemens Schrimpe
  • Hans Kuhn (NSRC)
  • Hirochika Asai (Preferred Networks/WIDE)
  • Joe Clarke (Cisco)
  • Karen O'Donoghue
  • Rob Austein (Arrcus)
  • Steve Walsh
  • Warren Kumari (Google)

Staff:

  • Adien Branik
  • Con Reilly
  • Daniel Branik
  • Nick Kukich
  • Sean Croghan

Contributors:

  • Juniper Networks
  • Cisco