R3303-HP HSR6800 Routers Layer 3 - IP Services Command Reference
Table Of Contents
- Title Page
- Contents
- ARP configuration commands
- Gratuitous ARP configuration commands
- Proxy ARP configuration commands
- ARP snooping configuration commands
- IP addressing configuration commands
- DHCP server configuration commands
- bims-server
- bootfile-name
- dhcp enable (for DHCP server)
- dhcp server apply ip-pool
- dhcp select server global-pool
- dhcp server client-detect enable
- dhcp server detect
- dhcp server forbidden-ip
- dhcp server ip-pool
- dhcp server ping packets
- dhcp server ping timeout
- dhcp server relay information enable
- dhcp server threshold
- dhcp update arp (for DHCP server)
- display dhcp server conflict
- display dhcp server expired
- display dhcp server free-ip
- display dhcp server forbidden-ip
- display dhcp server ip-in-use
- display dhcp server statistics
- display dhcp server tree
- dns-list
- domain-name
- expired
- forbidden-ip
- gateway-list
- nbns-list
- netbios-type
- network
- network ip range
- network mask
- next-server
- option
- reset dhcp server conflict
- reset dhcp server ip-in-use
- reset dhcp server statistics
- static-bind client-identifier
- static-bind ip-address
- static-bind mac-address
- tftp-server domain-name
- tftp-server ip-address
- vendor-class-identifier
- voice-config
- DHCP relay agent configuration commands
- dhcp enable (for DHCP relay agent)
- dhcp relay address-check enable
- dhcp relay check mac-address
- dhcp relay client-detect enable
- dhcp relay information circuit-id format-type
- dhcp relay information circuit-id string
- dhcp relay information enable
- dhcp relay information format
- dhcp relay information remote-id format-type
- dhcp relay information remote-id string
- dhcp relay information strategy
- dhcp relay release ip
- dhcp relay security static
- dhcp relay security refresh enable
- dhcp relay security tracker
- dhcp relay server-detect
- dhcp relay server-group
- dhcp relay server-select
- dhcp select relay
- dhcp update arp (for DHCP relay agent)
- display dhcp relay
- display dhcp relay information
- display dhcp relay security
- display dhcp relay security statistics
- display dhcp relay security tracker
- display dhcp relay server-group
- display dhcp relay statistics
- reset dhcp relay statistics
- DHCP client configuration commands
- DHCP snooping configuration commands
- dhcp-snooping
- dhcp-snooping binding database filename
- dhcp-snooping binding database update interval
- dhcp-snooping binding database update now
- dhcp-snooping check mac-address
- dhcp-snooping check request-message
- dhcp-snooping information circuit-id format-type
- dhcp-snooping information circuit-id string
- dhcp-snooping information enable
- dhcp-snooping information format
- dhcp-snooping information remote-id format-type
- dhcp-snooping information remote-id string
- dhcp-snooping information strategy
- dhcp-snooping information sub-option
- dhcp-snooping trust
- display dhcp-snooping
- display dhcp-snooping binding database
- display dhcp-snooping information
- display dhcp-snooping packet statistics
- display dhcp-snooping trust
- reset dhcp-snooping
- reset dhcp-snooping packet statistics
- IPv4 DNS configuration commands
- NAT configuration commands
- address
- display nat address-group
- display nat all
- display nat bound
- display nat dns-map
- display nat server
- display nat server-group
- display nat session
- display nat static
- display nat statistics
- display userlog export
- inside ip
- nat address-group
- nat dns-map
- nat outbound
- nat outbound static
- nat server (for extended NAT server)
- nat server (for normal NAT server)
- nat server-group
- nat static
- nat static net-to-net
- IP forwarding basics commands
- Load sharing commands
- Flow classification configuration commands
- Adjacency table configuration commands
- IP performance optimization commands
- display icmp statistics
- display ip socket
- display ip statistics
- display ip virtual-reassembly
- display tcp statistics
- display udp statistics
- ip forward-broadcast (interface view)
- ip forward-broadcast (system view)
- ip icmp-extensions
- ip redirects enable
- ip ttl-expires enable
- ip unreachables enable
- ip virtual-reassembly
- reset ip statistics
- reset tcp statistics
- reset udp statistics
- tcp mss
- tcp path-mtu-discovery
- tcp timer fin-timeout
- tcp timer syn-timeout
- tcp window
- UDP helper configuration commands
- IPv6 basics configuration commands
- display ipv6 fib
- display ipv6 fib ipv6-address
- display ipv6 interface
- display ipv6 neighbors
- display ipv6 neighbors count
- display ipv6 neighbors vpn-instance
- display ipv6 pathmtu
- display ipv6 socket
- display ipv6 statistics
- display tcp ipv6 statistics
- display tcp ipv6 status
- display udp ipv6 statistics
- ipv6
- ipv6 address
- ipv6 address anycast
- ipv6 address auto link-local
- ipv6 address eui-64
- ipv6 address link-local
- ipv6 hoplimit-expires enable
- ipv6 icmp-error
- ipv6 icmpv6 multicast-echo-reply enable
- ipv6 mtu
- ipv6 nd autoconfig managed-address-flag
- ipv6 nd autoconfig other-flag
- ipv6 nd dad attempts
- ipv6 nd hop-limit
- ipv6 nd ns retrans-timer
- ipv6 nd nud reachable-time
- ipv6 nd ra halt
- ipv6 nd ra interval
- ipv6 nd ra no-advlinkmtu
- ipv6 nd ra prefix
- ipv6 nd ra router-lifetime
- ipv6 neighbor
- ipv6 neighbor stale-aging
- ipv6 neighbors max-learning-num
- ipv6 option drop enable
- ipv6 pathmtu
- ipv6 pathmtu age
- ipv6 redirects enable
- ipv6 unreachables enable
- local-proxy-nd enable
- reset ipv6 neighbors
- reset ipv6 pathmtu
- reset ipv6 statistics
- reset tcp ipv6 statistics
- reset udp ipv6 statistics
- tcp ipv6 timer fin-timeout
- tcp ipv6 timer syn-timeout
- tcp ipv6 window
- DHCPv6 configuration commands
- DHCPv6 common configuration commands
- DHCPv6 server configuration commands
- display ipv6 dhcp pool
- display ipv6 dhcp prefix-pool
- display ipv6 dhcp server
- display ipv6 dhcp server conflict
- display ipv6 dhcp server expired
- display ipv6 dhcp server ip-in-use
- display ipv6 dhcp server pd-in-use
- display ipv6 dhcp server statistics
- dns-server
- domain-name
- ds-lite address
- network
- ipv6 dhcp pool
- ipv6 dhcp prefix-pool
- ipv6 dhcp server
- ipv6 dhcp server enable
- prefix-pool
- reset ipv6 dhcp server conflict
- reset ipv6 dhcp server ip-in-use
- reset ipv6 dhcp server pd-in-use
- reset ipv6 dhcp server statistics
- sip-server
- static-bind address
- static-bind prefix
- DHCPv6 relay agent configuration commands
- IPv6 DNS configuration commands
- NAT-PT configuration commands
- display natpt address-group
- display natpt address-mapping
- display natpt all
- display natpt statistics
- natpt address-group
- natpt enable
- natpt prefix
- natpt turn-off tos
- natpt turn-off traffic-class
- natpt v4bound dynamic
- natpt v4bound static
- natpt v4bound static v6server
- natpt v6bound dynamic
- natpt v6bound static
- reset natpt statistics
- AFT configuration commands
- Tunneling configuration commands
- GRE configuration commands
- DVPN configuration commands
- Support and other resources
- Index
96
dhcp-snooping information sub-option
Use dhcp-snooping information sub-option to configure a sub-option.
Use undo dhcp-snooping information sub-option to restore the default.
Syntax
dhcp-snooping information [ vlan vlan-id ] sub-option sub-option-code [ string user-string&<1-8> ]
undo dhcp-snooping information [ vlan vlan-id ] sub-option sub-option-code
Default
No sub-option is configured.
Views
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Default command level
2: System level
Parameters
vlan vlan-id: Specifies the ID of a VLAN, in the range of 1 to 4094.
sub-option sub-option-code: Specifies the number of the sub-option. Only sub-option 9 is supported.
string user-string&<1-8>: Configures the content of the sub-option, a case-sensitive string of 1 to 63
characters. &<1-8> represents that you can enter a maximum of 8 strings separated by spaces.
Usage guidelines
This configuration takes effect only for the private padding format. To configure the private padding
format, use the dhcp-snooping information format private 1 command.
If no content is configured for sub-option 9 with the string user-string option, the primary device uses
sysname and the primary address of the Loopback0 interface to pad sub-option 9 and a secondary
device uses sysname to pad sub-option 9. The device configured with the dhcp-snooping information
strategy append command is the primary device and a device configured with some other strategy is a
secondary device.
After you use the string user-string option to configure sub-option 9, the device uses the ASCII code type
to pad the characters into sub-option 9 in the order that they are configured. When the total length of all
sub-options reaches 255, the device stops padding automatically.
The sub-option 9 content configured only applies to the VLAN that is specified by the vlan vlan-id option.
If no VLAN ID is specified, the sub-option 9 content applies to all VLANs. A VLAN prefers its own
sub-option 9 content over the one configured for all VLANs.
Examples
# Configure the user-defined sub-option 9 as group001.
<Sysname> system-view
[Sysname] interface GigabitEthernet 1/0/1
[Sysname-GigabitEthernet 1/0/1] dhcp-snooping information sub-option 9 string group001
Related commands
• dhcp-snooping information format
• dhcp-snooping information strategy