IPv6 Application Trial Services 2003/08/07 Tomohide Nagashima Japan Telecom Co., Ltd.
How IPv6 Will Kill Telecom - And What We Need To Do About It
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Transcript of How IPv6 Will Kill Telecom - And What We Need To Do About It
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How IPv6 Will Kill Telecom – And What We Need To Do About It"
June 27, 2011! Dan York!Dir. of Conversations!
twitter.com/danyork!twitter.com/voxeo!
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
Dan York!
www.danyork.com
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
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Why IPv6?!
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In The Beginning...!
192.168.20.12
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Mobility!
www.flickr.com/photos/kapungo/3396823518/
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A Plethora of Portable Platforms!
www.flickr.com/photos/clonedmilkmen/5111779335/
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Internet of Things!
www.flickr.com/photos/dmje/5159177886/
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Internet of Things!
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Internet of Things!
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
EVERYTHING over IP
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How IP Address Allocation Works!
Regional Internet Registries (RIRs)
Internet Service Providers (ISPs)
You
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Global IPv4 Disparity !
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
Oops... as of Feb 1, 2011...!
Regional Internet Registries (RIRs)
Internet Service Providers (ISPs)
You
All Gone!
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Solutions?!
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IPv4 Marketplace!
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
Prolonging IPv4 - NAT Today!
Firewall
ISP
Internet Firewall
IP Phone
PC
Home Firewall
Home
Public IP NAT
Private IP Addresses
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
Carrier Grade NAT (a.k.a. LSN)!
ISP
Internet Firewall
IP Phone
PC
Home Firewall
Home
Public IP NAT
Private IP Addresses
Firewall
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Old NATs Never Die...!
ISP
Internet Firewall
IP Phone
PC
Home Firewall
Home
Public IP NAT
Private IP Addresses
Firewall
NAT Private IP Addresses
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The Problem?!
SIP NAT
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Oh, and by the way... !
(sorry... we still have NAT-like networks with IPv6...)
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And then there is... !
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Challenge #1 For VoIP and UC Apps:!
How Many Digits Is That?!
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See the problem?!
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See the problem?!
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IPv4!
192.168.20.12
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv6!
2001:db8:34a5:23:aa1f:12f4:9009:1234
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv6 Address Compression!
2001:db8:34a5:0:0:0:0:1
2001:db8:34a5::1
(oh, and they aren’t case-sensitive)
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv6 Address Compression!
127.0.0.1 ::1
0.0.0.0 ::
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
DNS is your friend!
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Challenge #2 For VoIP and UC Apps:!
Whereʼs The Nearest Port?!
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv4 Port Numbers!
192.168.20.12:5060
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv4 Port Numbers in IPv6?!
192.168.20.12:5060
2001:db8:34a5::1234:5060
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv6 Port Numbers!
[2001:db8:34a5::1234]:5060
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv6 addressing!
http://[2001:db8:34a5::1234]/index.html
http://[2001:db8:34a5::1234]:8080
sip:dan@[2001:db8:34a5::1234]
sip:dan@[2001:db8:34a5::1234]:5060
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DNS is your friend!
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Challenge #3 For VoIP and UC Apps:!
Whatʼs the Address?!
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv6 – Multiple Addresses / Interface!
192.168.20.12
2001:db8:34a5:92:21c:a5ff:fe12:3a80 (global)
fe80::21c:a5ff:fe12:3a80 (link-local)
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv6 – Neighbor Discovery!
No More DHCP For Address Assignment (well, unless you want it)
Router Advertisements
Also Replaces ARP
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv6 – Address Creation!
2001:db8:34a5:92:21c:a5ff:fe12:3a80
Router Advertisement
Autoconfiguration from Ethernet Address
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
DNS is your friend!
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Challenge #4 For VoIP and UC Apps:!
How Many Aʼs Do You Want With That?!
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv4 and DNS!
example.com 3600 IN A 192.168.20.12
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv6 and DNS!
example.com 3600 IN A 192.168.20.12
example.com 3600 IN AAAA 2001:db8:34a5::1234
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv6 DNS Fun!
What if DNS gives a AAAA....
but your system doesn’t have “real” IPv6 connectivity?
(You can retrieve AAAA records over IPv4!)
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UNhappy Eyeballs!
You
DNS Svr
example.com A 192.168.20.12 example.com AAAA 2001:db8:34a5::1234
AAAA
(a long time later...)
A
?
?
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Happy Eyeballs!
You
DNS Svr
example.com A 192.168.20.12 example.com AAAA 2001:db8:34a5::1234
AAAA
A ? ?
(sent at same time; whichever replies first wins)
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Happy Eyeballs!
draft-ietf-v6ops-happy-eyeballs
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Challenge #5 For VoIP and UC Apps:!
What Lies Buried Within?!
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
How Do You Store IP Addresses?!
Memory?
Databases?
Config Files?
Room for two? (or more?)
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
Config Files!
<category name="SIP">
<item name="Server1">127.0.0.1:5060 </item>
</category>
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
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IPv6 Works Fine!!
Linphone – http://www.linphone.org Open source, free and available for Linux, Windows and MacOS X
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
Linphone and IPv6!
Linphone – http://www.linphone.org Open source, free and available for Linux, Windows and MacOS X
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RFC 6157!
RFC 6157
“IPv6 Transition in the Session Initiation Protocol (SIP)”
tools.ietf.org/html/rfc6157
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SIP Architecture!
SIP Proxy
A
Alice Bob Media (RTP, MSRP, etc.)
SIP SIP
SIP Proxy
B SIP
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
SIP Reality!
Internet (or WAN)
Alice Bob Media
SIP SIP
SIP Proxy
A SIP
SIP Proxy
B
SIP Proxy
N
SIP Proxy
D SIP
SIP Proxy
C SIP SIP
Media Proxy
A
Media Proxy
B Media Media
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
“SIP” = Multiple Protocols!
SIP SDP
RTP
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv4/IPv6 Fun!
Communicating between IPv4 client and IPv6 client through a proxy • Record-Route: <sip:2001:db8::1;lr>
• Record-Route: <sip:192.0.2.1;lr>
Mixed communication across a path of proxies
Mixed communication: IPv6 for SIP, IPv4 for media
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
IPv6 and SDP!
Only allows a single IP address per media stream (“c=“ parameter) • c=IN IP4 192.168.20.12
• c=IN IP6 2001:db8:34a5::1234
Multiple proposals for additional SDP parameters • ex. ANAT - RFC 4091 & 4092 – now deprecated by
ICE
The IETF way forward is ICE – RFC 5245
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
NAT, NAT, NAT... !
STUN, TURN, ICE
(RFC 5245)
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Discovery of SIP Servers!
User agents need to find SIP servers/proxies
DHCPv6 • SIP Options in RFC 3319
DNS SRV, NAPTR and AAAA Records (RFC 3263)
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© Voxeo Corporation © Voxeo Corporation © Voxeo Corporation
Other IPv6 Considerations!
Other interfaces • Web and management systems
• Logging
• APIs
Custom SIP headers
Multi-vendor interoperability
SBC and firewall support for SIP over IPv6
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SIP Forum “IPv6” Mailing List!
sipforum.org/mailman/listinfo/ipv6
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SIPit Test Events!
sipit.net
SIPit 28: “68% of the implementations present supported IPv6.”
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Get Started With IPv6... !
http://bit.ly/voxeoipv6
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Set up Test Lab or your Home Office!
http://tunnelbroker.net
www.test-ipv6.com www.ipv6-test.com
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SIP Softphones Supporting IPv6!
Linphone • www.linphone.org
Jitsi (formerly SIP Communicator) • www.jitsi.org
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Olle Would Want Me To Mention... !
Asterisk 1.8
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Jonathan Would Want Me To Mention...!
Voxeo Prophecy 10.1
• Standards-based platform for speech, IVR and SIP applications
• Downloads and installs in minutes; Scales from 2 ports to 10’s of thousands of ports
• World’s most compatible and compliant VoiceXML and CCXML
Voxeo PRISM 10.1
• Real-time Communications Application Server
• Supports Converged SIP, Web and XMPP applications.
• Carrier grade high performance platform with full support of high availability and session replication
Free developer versions for Windows, Linux, Mac OS X
www.voxeo.com/prophecy www.voxeo.com/prism
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Marc Would Want Me To Mention...!
sipforum.org/mailman/listinfo/ipv6
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Q&A!
Visit our IPv6 resource page and read our IPv6 blog posts:
• http://bit.ly/voxeoipv6
Dan York
• sip:[email protected]
• skype:danyork