
* - the configured vendor-string is an exact-match
default - all DHCP client packets not matching a configured vendor-string
implied - the DHCP application is configured but has not been enabled
with the vendor-option command
drop - the DHCP application responsible for the action has not been
configured yet therefore all packets for this application
will be dropped
Total 3 entries.
Vendor-option Action
-------------------------------- ----------------------------------------
abcd relay to 192.168.15.2 (rx: 0)
default(*) local-server (rx: 0, no-match: 0)
myword(*) relay to 192.168.7.7 (rx: 0)
Relaying DHCP Packets That Originate from a Cable Modem
You can use the DHCP vendor class identifier option (option 60) to configure DHCP
relay to relay DHCP packets that originate from a cable modem to an external DHCP
server that provides the cable modem with the configuration it requests.
Configure the vendor class identifier option to match the string used by cable
modems—DHCP relay then forwards the packets to each DHCP server that you
configured with the
set dhcp vendor-option
command (these servers are also
considered to be cable-modem DHCP servers).
■
To relay DHCP packets from a cable modem:
host1(config)#
set dhcp relay
host1(config)#
service dhcp-local equal-access
host1(config)#
set dhcp vendor-option equals docsis relay 192.168.1.1
host1(config)#
set dhcp vendor-option equals cablemodem relay 192.168.1.1
Use the show dhcp summary and show dhcp vendor-option commands to display
information about the cable modem DHCP relay configuration. See “Monitoring
and Troubleshooting DHCP” on page 539.
Configuring Relay Agent Option 82 Information
You can specify the type the relay agent option 82 information that the router adds
to DHCP packets before it relays the packets to the DHCP server. You can use one
of the following keywords to add either the hostname or virtual router name to the
front of the Circuit-Id field or to strip the subinterface ID from the Interface-Id field:
■
hostname
—Adds the router’s hostname to the front of the Circuit-Id field; a
colon separates the hostname from the circuit information
■
vrname
—Adds the router’s virtual router name to the front of the Circuit-Id field;
a colon separates the virtual router name from the circuit information
■
Use the
exclude-subinterface-id
to strip the subinterface ID from the Interface-Id
field. When the interface ID is constructed, it contains the slot/port numbers,
the subinterface ID, and the VPI/VCI for ATM interfaces or the VLAN ID for
506
■
Configuring DHCP Relay and BOOTP Relay
JUNOSe 11.1.x Broadband Access Configuration Guide
Содержание JUNOSE 11.1.X - BROADBAND ACCESS CONFIGURATION GUIDE 6-4-2010
Страница 6: ...vi...
Страница 28: ...xxviii Table of Contents JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 36: ...xxxvi List of Tables JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 42: ...2 Managing Remote Access JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 208: ...168 Monitoring IPv6 Local Pool Statistics for DHCP Prefix Delegation JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 210: ...170 Managing RADIUS and TACACS JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 280: ...240 CLI Commands Used to Modify RADIUS Attributes JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 298: ...258 Monitoring RADIUS Relay Server JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 342: ...302 RADIUS Client Terminate Reasons JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 374: ...334 Managing L2TP JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 414: ...374 Configuring the Weighted Load Balancing Method JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 450: ...410 PPP Accounting Statistics JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 498: ...458 Monitoring Operational Status within the Current VR Context JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 500: ...460 Managing DHCP JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 516: ...476 DHCP Local Server Configuration Tasks JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 562: ...522 Configuring DHCP Relay Proxy JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 622: ...582 Managing the Subscriber Environment JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 638: ...598 Subscriber Management Configuration Examples JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 642: ...602 Monitoring Active IP Subscribers Created by Subscriber Management JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 678: ...638 Monitoring Active IP Subscribers Created by Subscriber Management JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 680: ...640 Managing Subscriber Services JUNOSe 11 1 x Broadband Access Configuration Guide...
Страница 773: ...Part 7 Index Index on page 735 Index 733...
Страница 774: ...734 Index JUNOSe 11 1 x Broadband Access Configuration Guide...