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
97
• display dhcp-snooping information
dhcp-snooping trust
Use dhcp-snooping trust to configure a port as a trusted port.
Use undo dhcp-snooping trust to restore the default state of a port.
Syntax
dhcp-snooping trust [ no-user-binding ]
undo dhcp-snooping trust
Default
All ports are untrusted.
Views
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Default command level
2: System level
Parameters
no-user-binding: Specifies the port to not record the clients' IP-to-MAC bindings in received DHCP
requests. If this keyword is not specified, the port records the IP-to-MAC bindings for clients.
Usage guidelines
After you enable DHCP snooping, you need to specify the ports connected to the authorized DHCP
servers as trusted ports to make sure that DHCP clients can obtain valid IP addresses.
Examples
# Specify GigabitEthernet 3/1/1 as a trusted port and enable it to record the IP-to-MAC bindings of
clients.
<Sysname> system-view
[Sysname] interface gigabitethernet 3/1/1
[Sysname-GigabitEthernet3/1/1] dhcp-snooping trust
Related commands
display dhcp-snooping trust
display dhcp-snooping
Use display dhcp-snooping to display DHCP snooping entries.
Syntax
display dhcp-snooping [ ip ip-address ] [ | { begin | exclude | include } regular-expression ]
Views
Any view
Default command level
1: Monitor level