
Dial VPN Layer 3 Tunneling
302272-A Rev. 00 3-11
Figure 3-3. Dial VPN Dynamic IP Address Management Sequence
At the start of service delivery, a client configured to use dynamic IP addressing
generates a start packet describing the type of service being delivered and the user
to whom it is being delivered. The client sends that information to the RADIUS
server, which sends back an acknowledgment that it has received the packet. At
LCP negotiation
CHAP initiation
Remote
Node
Local
Node
Accounting
Server
RAS TMS Gateway
Grant w/info
Auth/Info Req
Auth Req
CHAP completion
Connect
NCP negotiation
Disconnect
Terminate msg
MIP authentication request
Open Communication
MIP registration request
MIP DAA response
Acct Start
Acct Stop
MIP terminate request
MIP terminate response
Auth Resp w/info
MIP registration response
DHCP
Server
RADIUS
Server
DVS0018A
MIP authentication response
MIP DAA request
DHCP response/ack
DHCP discover/ request
Acct Response
Address
release
Response
NAS
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