Transcript Using a Single IPv4 Global Address in DSTM

Scenarios and Considerations of
IPv6 in IEEE 802.16 Networks
draft-shin-ipv6-ieee802.16-01
Myung-Ki Shin, ETRI
Jung-Mo Moon, ETRI
Youn-Hee Han, Samsung AIT
IETF-64 16ng BoF @ Vancouver, BC, Canada
1
Goal and Scope
• The characteristics of IEEE 802.16 networks (links)
put special considerations on how IPv6 is used
– draft-jee-16ng-problem-statement-02
• IEEE 802.16 network deployment scenarios have an
influence on how to adopt IPv6
• The considerations might be classified into :
– Protocol issues, implementation issues and operation issues
• The draft will not cover WiMAX and WiBro
implementation-specific functions
2
Scenario - Architecture
• Hot Zone
– An area served by one BS is usually termed 'Hot Zone‘
• Use unlicensed (2.4 & 5 GHz) band as well as licensed (2.6 &
3.5 GHz) band
– BS will be deployed using an Ethernet (IP) backbone rather
than a proprietary backend like cellular systems. Thus, many
IPv6 functionalities will be preserved
• Cellular-like
– BS might be deployed with a proprietary backend managed
by an operator
– All standard IPv6 functionalities may not survive and some of
them might be compromised to efficiently serve IPv6
3
Scenario – BS Deployment
• Router Separation from
BS
– BSs may not have IPv6 stack
– Two underlying links b/w MS
and router (e.g., 802.16 +
Ethernet)
• BS and Router in One
Box
– Only IEEE 802.16 link will be
taken into consideration for
IPv6 adoption
4
Scenario - Addressing
• A Unique Prefix to a MS
– 3GPP recommendation [RFC 3314] can be also applied
to IEEE 802.16 network system (e.g., 'Cellular-like'
usage scenario).
– many IPv6 functionalities can be implemented without
difficulty (e.g., DAD)
• A Single Prefix to All of Attached MSs
– Different usage scenario such as 'Hot zone' would not
allow [RFC 3314] recommendation because of the
compatibility with the existing IPv6 devices
5
Eight Scenarios
#
Use Case
BS
Addressing
1
Hot zone
Router separation from BS
Unique Prefix to a MS
2
Hot zone
Router separation from BS
Single Prefix to MSs
3
Hot zone
BS and router in one box
Unique Prefix to a MS
4
Hot zone
BS and router in one box
Single Prefix to MSs
5
Cellular-like
Router separation from BS
Unique Prefix to a MS
6
Cellular-like
Router separation from BS
Single Prefix to MSs
7
Cellular-like
BS and router in one box
Unique Prefix to a MS
8
Cellular-like
BS and router in one box
Single Prefix to MSs
6
Issues
• Basic IP
– Neighbor Discovery for IPv6
• draft-lee-ndp-ieee802.16-00
• draft-jeon-ipv6-ndp-ieee802.16-00
– Transmission of IPv6 Packets
• draft-mandin-ip-over-80216-ethcs-00
• draft-shin-ipv6-ieee802.16-transmission-00 (not available yet)
– IPv6 Addressing
• Mobility
– Mobile IPv6
– Mobile IPv6 Fast Handovers
• draft-jang-mipshop-fh80216e-00
7
Issues, cont.
• Multicast
– MLD
• ND issues + MLD reports suppression needed
– Interworking with IP Multicast and MBS
• MBS seems to be broadcast service, not multicasting.
• Security
– IPsec
– Security Threat Analysis
• Multiple Interfaces with Different Properties
8
Summary
+------------------------------------------------------+
| #
|
issues
|
target
|
wg
|
+------------------------------------------------------+
| 1.1
| neighbor
|
protocol
| ipv6
|
|
| discovery
|
| 16ng
|
+------------------------------------------------------+
| 1.2
| packet
|
protocol
| ipv6
|
|
| transmission |
| 16ng
|
+------------------------------------------------------+
| 1.3
| addressing
|
operation
|
na
|
|
|
|
|
|
+------------------------------------------------------+
| 2.1
| mobile
| operation /
|
na
|
|
| ipv6
| implementation|
|
+------------------------------------------------------+
| 2.2
| fast
|
protocol
| mipshop |
|
| handover
|
| 16ng
|
+------------------------------------------------------+
| 3.1
| multicast
|
protocol
| mboned |
|
| listener
|
| 16ng
|
+------------------------------------------------------+
| 3.2
| mbs
| operation /
| mboned |
|
| interworking | implementation| 16ng
|
+------------------------------------------------------+
| 4.1
| ipsec
| operation /
| v6ops
|
|
|
| implementation|
|
+------------------------------------------------------+
| 4.2
| threat
| operation /
| v6ops
|
|
| model
| implementation|
|
+------------------------------------------------------+
| 5
| multiple
| operation /
|
na
|
|
| interfaces
| implementation|
|
+------------------------------------------------------+
9