Configuring ISG Access for IP Subscriber Sessions
How to Configure ISG for IP Subscriber Sessions
15
Creating IP Subscriber Sessions for Layer 2 Connected ISG Subscribers
Layer 2 connected subscribers are either directly attached to the physical interfaces of an ISG or
connected to an ISG through a Layer 2 access network, such as a bridged network or a switched network.
Perform this task to configure ISG to create IP sessions for Layer 2 connected IP subscribers.
SUMMARY STEPS
1. enable
2. configure terminal
3. interface type number
4. ip subscriber l2-connected
5. initiator {dhcp [class-aware] | radius-proxy | unclassified mac-address}
6. end
Step 5
initiator {dhcp [class-aware] | radius-proxy |
unclassified ip-address}
Example:
Router(config-subscriber)# initiator dhcp
Configures ISG to create an IP subscriber session upon
receipt of the specified packet type.
• dhcp—ISG will initiate an IP session upon receipt of a
DHCP DISCOVER packet. The class-aware keyword
allows ISG to influence the IP address assigned by
DHCP by providing DHCP with a class name.
• radius-proxy—ISG will initiate an IP session upon
receipt of a RADIUS Access-Request packet.
• unclassified ip-address—ISG will initiate an IP
session upon receipt of the first IP packet with an
unclassified IP source address.
• This command can be entered more than once to
specify more than one method of IP session initiation.
Note If the ISG device serves as either a DHCP relay or
DHCP server in the assignment of client IP
addresses, ISG must be configured to initiate IP
sessions upon receipt of DHCP DISCOVER
packets. In other words, the initiator dhcp
command must be configured instead of the
initiator unclassified ip or initiator unclassified
mac command.
Step 6
end
Example:
Router(config-subscriber)# end
(Optional) Returns to privileged EXEC mode.
Command or Action Purpose
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