UsescasesforPortExtended IPv4addressing SHARABOFIETF74 1 - PowerPoint PPT Presentation

Uses
cases
for
Port‐Extended
 IPv4
addressing
 SHARA
BOF
–
IETF74
 1


Current
model
 Public
IPv4
 IPv4
site
 address
IP1
 Private
 Public
IPv4
 addresses
 address
IP2
 NAT
 IPv4
ISP
 Rest
of
the
 ISP
internal
 IPv4
 NAT
 network
 Internet
 NAT
 2


Current
model
breakdown
 Public
IPv4
 IPv4
site
 address
 Private
 Public
IPv4
 addresses
 address
IP2
 NAT
 IPv4
ISP
 Rest
of
the
 ISP
internal
 IPv4
 NAT
 network
 Internet
 NOT
ENOUGH
IPv4
PUBLIC
 ADDRESSES
TO
PROVIDE
EACH
 NAT
 CLIENT
WITH
ONE
PUBLIC
 ADDRESS
 3


Port‐Extended
IPv4
addressing

 Use
case
#1
 Public
IPv4
address
IP1



 IPv4
site
 Port
range
PR1
 Private
 addresses
 Public
IPv4
address
IP1

 Port
range
PR2
 NAT
 IPv4
ISP
 Rest
of
the
 ISP
internal
 IPv4
 NAT
 Port
 Port
 network
 Internet
 router
 router
 Public
IPv4
address
IP1
 IPv4
in
IPv4
 tnnels
or
other
 NAT
 L2
tunnel
 Public
Address
IP1
















 technology
 Port
range
PR1,PR2,…
 4


Port‐Extended
IPv4
addressing

 Use
case
#2
 Public
IPv4
address
IP1



 IPv4
site
 Port
range
PR1
 Private
 addresses
 Public
IPv4
address
IP1

 IPv6
 Port
range
PR2
 NAT
 address
 IPv6
 IPv6
 Rest
of
the
 address
 IPv6
 address
 IPv4
 Port
 NAT
 Port
 internal
 Internet
 router
 router
 network
 IPv6
 address
 IPv4
in
 Public
IPv4
address
IP1
 IPv6
 NAT
 tnnels
 Public
Address
IP1
















 Port
range
PR1,PR2,…
 5


Port‐Extended
IPv4
addressing

 Use
case
#3
 Public
IPv4
address
IP1



 IPv6
site
 Port
range
PR1
 Public
IPv4
address
IP1

 Port
range
PR2
 NAT64
 IPv6
 Rest
of
the
 ISP
 address
 IPv4
 NAT64
 Port
 
internal
 Internet
 router
 network
 Public
IPv4
address
IP1
 IPv4
in
IPv6
tnnels,
 NAT64
 IPv4
in
IPv4
tunnels
 Public
Address
IP1
















 or
otherL2
tunnel
 Port
range
PR1,
PR2
 6


Port‐Extended
IPv4
addressing

 Use
case
#4
 Public
IPv4
address
IP1

 Port
range
PR3
 Public
IPv4
address
IP1

 Tunnel
technology
 Port
range
PR2
 IPv4
 Mobile
 Internet
 operaYor
 Port
 router
 Public
IPv4
address
IP1
 Public
IPv4
address
IP1
 Port
range
PR1,PR2,PR3…
 Public
IPv4
address
IP1

 Port
range
PR1
 7


Generalized
use
case
 IPv4
in
IPv4
tunnel
 IPv4
in
IPv6
tunnel
 IPv4
over
other
L2
tunel
 IPv4
end
 Port
router
 PPP
link
 site
 Router
 IPv6
end
 Tunnel
or
IP
 site
 connecYvity
 Port
 router
 Port
restricted
NAT
 Port
Router
 Port
restricted
NAT64
 Port
router
 End
host
 8