IP Router Configuration
Configuring
ip-global
network features
Stinger®
IP2000 Configuration Guide
4-27
admin> new connection cpe-router
admin> set active = yes
admin> set encapsulation-protocol = atm
admin> set ip-options remote-address = 3.3.3.3/30
admin> set atm-options nailed-group = 251
admin> write -f
Configuring DHCP Option 82 for use with DHCP relay
DHCP option 82, the relay agent Information option, is used to associate a unique
identifier with a broadband device such as a DSL CPE or Integrated Access Device
(IAD). The identifier can either be associated with the virtual circuit to the remote
device, or with the remote router itself. BOOTP servers that recognize this option can
use the option 82 identifier to enforce conditions on address or configuration access.
For details about option 82, see RFC 3046, DHCP Relay Agent Information Option.
Note
DHCP relay is a prerequisite for using option 82. For details, see “Configuring
DHCP relay to allow CPE clients to obtain an address” on page 4-25.
DHCP option 82 configuration settings
Following are the parameters, shown with default settings, for configuring DHCP
option 82.
[in IP-GLOBAL:bootp-relay:relay-agent-information]
circuit-id = { no 0.0.0.0 }
remote-id = { no 0.0.0.0 }
[in IP-GLOBAL:bootp-relay:relay-agent-information:circuit-id]
enable = no
if-ip = 0.0.0.0
[in IP-GLOBAL:bootp-relay:relay-agent-information:remote-id]
enable = no
if-ip = 0.0.0.0
Parameter
Setting
circuit-id:enable
Enable/disable the circuit identifier suboption of DHCP
option 82. If enabled, the IP2000 encodes the
station
value (the hostname) of the
connection
or RADIUS
profile that defines the PVC on which the DHCP client-
to-server packet was received. This ensures that DHCP
responses are sent back to the proper circuit.
circuit-id:if-ip
IP address of one of the IP2000 IP interfaces. If no value
is specified in this field or the
if-ip
field of an enabled
remote-id
subprofile, the Stinger uses the system
address (
ip-global:system-ip-addr
) if that value has
been defined.