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Qtech QSW-3900-24-Т-AC — настройка SNTP клиента для фильтрации серверов времени [482/634]
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ip-address：Means valid-server interface. Mainframe cannot be 0
wildcard：Similar to reverse the mask
【Command configuration mode】
Global configuration mode
【Usage】
In the mode of broadcast and multicast, SNTP client checks time by receiving
protocol messages sent by all servers. And it cannot filtrate the servers when
spiteful attack exists. To solve this problem, a series of valid servers can be
listed to filtrate source address of the message.
【Example】
！Add a valid-server list
QTECH(config)#sntp client valid-server 10.1.0.2 0.0.255.255
16.1.12 sntp server
Use sntp server command to configure server ip-address in unicast mode.
16-14
Содержание
561- User s manual
- Command line reference manual
- Qtech qsw 3900 10 ge
- Intelligent routing switch
- User s manual
- C o n t e n t
- Chapter 15 802 x configuration command 15 1
- Chapter 16 sntp client configuration command 16 1
- Switch logging in command
- Chapter 1 switch logging in command
- Configure terminal
- Enable
- Hostname
- Interface
- Interface range
- Show muser
- Show username
- Terminal language
- Timeout
- Username username privilege
- Username change password
- Ethernet interface configuration command
- Chapter 2 port configuration command
- Clear interface
- Description
- Duplex
- Flow control
- Ingress acceptable frame
- Ingress filtering
- Priority
- Show description
- Show interface
- Show statistics interface
- Shutdown
- Switchport access
- Switchport mode
- Vlan list can be discrete numbers sequential numbers or both
- Use switchport mode command to configure a port to be trunk port or access
- Then create a vlan this port will automatically be added to the vlan
- Switchport trunk allowed vlan
- Qtech config if ethernet 0 0 1 switchport mode trunk
- Port if a port configures to be a trunk port the vlan mode changes untagged
- Into tagged and if a port configures to be an access one the vlan mode
- Example
- Discrete numbers are separated by and sequential numbers use such as 2
- Configure ethernet 0 0 1 to be trunk port
- Changes tagged into untagged in addition configure a port to be a trunk one
- Switchport trunk native vlan
- Qtech config if ethernet 0 0 1 switchport trunk allowed vlan 3 4 70 150
- Pvid of trunk port use no switchport trunk native vlan command to restore
- No switchport trunk native
- 8 10 20 vlan list in the following context expresses the same
- Use switchport trunk native vlan command to configure the default vlan id
- The default vlan id
- Switchport trunk native vlan vlan id
- Show statistics dynamic interface
- Show utilization interface
- Local switch
- Mirror destination interface
- Interface mirror configuration command
- Mirror source interface
- Show mirror
- Port car configuration command
- Port car open time
- Port car
- Show port car
- Port car rate
- Channel group
- Port lacp configuration command
- Channel group mode
- Channel group load balance
- Lacp system priority
- Lacp port priority
- Show lacp sys id
- Show lacp internal
- Show lacp neighbor
- Port alarm configuration command
- Alarm all packets
- Alarm all packets threshold
- Show alarm all packets
- Show alarm all packets interface
- Vlan configuration
- Description
- Chapter 3 vlan configuration command
- Show vlan
- Switchport
- Gvrp configuration command
- Show gvrp interface
- Show gvrp
- Garp permit vlan
- Show garp permit vlan
- Qinq command
- Dtag inner tpid
- Dtag outer tpid
- Dtag mode
- Show dag
- Dtag insert
- Show dag insert
- Dtag swap
- Show dag swap
- Show dag pass through
- Dtag pass through
- Ip interface configuration command
- Command
- Chapter 4 ip interface configuration command
- Chapter 4 ip interface configuration
- Arp proxy
- Interface vlan interface
- Interface supervlan interface
- Ip address
- Ip address primary
- Ip def cpu
- Ip address range
- Show ip interface supervlan interface
- Show ip interface vlan interface
- Subvlan
- Chapter 5 arp configuration command
- Arp configuration command
- Arp aging
- Show arp
- Show arp aging
- Arp attack protect
- Show arp attack protect
- Arp anti attack limit
- Arp anti attack permit
- Show arp anti attack
- Arp dos protect
- Show arp dos protect
- Arp overwrite
- Show arp overwrite
- Dhcp configuration command
- Chapter 6 dhcp configuration command
- Option82
- Option8
- Dhcp option82
- Option82 strategy drop keep replace
- Option82 strateg
- Option82
- Dhcp option82 strategy
- Dhcp relay hide server ip
- Dhcp relay
- Hide server ip
- Hide server i
- Dhcp server
- Dhcp snooping trust
- Dhcp snooping
- Dhcp snooping max clients
- Ip source guard
- Show dhcp relay
- Show dhcp server
- Show dhcp relay hide server ip
- Hide server ip
- Hide server i
- Show dhcp server inerface
- Show dhcp snooping
- Show dhcp snooping clients
- Local ip address pool configuration command
- Dhcp client
- Configuration command
- Chapter 7 local ip address pool configuration command
- Chapter 7 local ip address pool
- Dns primary ip
- Dns second ip
- Dns suffix
- Gateway
- Ip bind
- Ip pool
- Section
- Show dhcp client
- Show ip pool
- Show ip bind
- Wins primary ip
- Wins second ip
- Static routing configuration command
- Ip route
- Command
- Chapter 8 static routing configuration command
- Chapter 8 static routing configuration
- Show ip route
- Chapter 9 rip configuration command
- Rip configuration command
- Auto summary
- Ip rip authentication
- Host route
- Ip rip input
- Ip rip metricin
- Ip rip metricout
- Ip rip output
- Ip rip split
- Ip rip version
- Ip rip work
- Network
- Router rip
- Ip prefix list
- Ip prefix list default
- Redistribute
- Show ip prefix list
- Distribute list
- Show ip rip
- Show ip rip interface
- Ospf configuration command
- Chapter 10 ospf configuration command
- Area authentication
- Area default cost
- Area range
- Area stub
- Area virtual link
- Default information originate
- Default redistribute metric
- Default redistribute type
- Ip ospf authentication key
- 0 ip ospf cost
- 1 ip ospf dead interval
- 2 ip ospf hello interval
- 3 ip ospf message digest key
- 4 ip ospf network
- 5 ip ospf priority
- 6 ip ospf retransmit interval
- 7 ip ospf transmit delay
- 8 network area
- 9 redistribute
- 0 router id
- 1 router ospf
- 2 show ip ospf
- 3 show ip ospf border routers
- 4 show ip ospf cumulative
- 6 show ip ospf error
- 5 show ip ospf database
- 7 show ip ospf interface
- 8 show ip ospf neighbor
- 9 show ip ospf request list
- 0 show ip ospf retrans list
- 1 show ip ospf virtual link
- 2 show ip route ospf
- 3 show router id
- Static multicast configuration command
- Multicast mac address
- Command
- Chapter 11 multicast protocol configuration command
- Chapter 11 multicast protocol configuration
- Multicast mac address vlan interface
- Show multicast
- Igmp snooping and gmrp configuration command
- Igmp snooping
- Igmp snooping host aging time
- Igmp snooping max response time
- Igmp snooping fast leave
- Igmp snooping permit deny group
- Igmp snooping group limit
- Igmp snooping route port forward
- Igmp snooping multicast vlan
- 0 show gmrp
- 1 show gmrp interface
- 2 garp permit multicast mac address
- 3 show garp permit multicast
- Igmp configuration command
- 4 show igmp snooping
- Ip igmp
- Ip igmp access group
- Ip igmp last member query interval
- Ip igmp query interval
- Ip igmp query max response time
- Ip igmp static group
- Ip igmp create group
- Ip igmp robustness varible
- Ip igmp limit group
- 0 ip igmp version
- 1 ip multicast routing
- 2 show ip igmp groups
- 3 show ip igmp interface
- Pim configuration command
- Ip pim dense mode
- Ip pim neighbor limit
- Ip pim neighbor policy
- Ip pim query interval
- Ip pim sparse mode
- Ip pim bsr border
- Show ip mroute
- Show ip pim neighbor
- 0 show ip pim interface
- 1 show ip pim rp info
- 2 show ip pim bsr
- 3 source policy
- 4 static rp
- 5 bsr candidate
- 6 rp candidate
- Chapter 12 acl configuration command
- Acl configuration command list
- Absolute
- Access group
- Access list
- Access list extended
- Access list link
- Access list match order
- Access list standard
- Permit deny
- Periodic
- 0 port isolation
- 1 port isolation group
- 2 show access list config
- 3 show access list config statistic
- 4 show access list runtime
- 5 show access list runtime statistic
- 7 show time range
- 6 show port isolation
- 8 time range
- Qtech config time range tm1
- Create time range tm1 and enter it
- Qtech config timerange tm1
- Qos configuration command
- Chapter 13 qos configuration command
- Clear traffic statistic
- Line rate
- Mirrored to
- Queue scheduler
- Queue scheduler cos map
- Queue scheduler dscp map
- Rate limit
- Show qos info mirrored to
- Show qos info all
- 0 show qos info statistic
- 1 show qos info traffic copy to cpu
- 2 show qos info traffic priority
- 3 show qos info traffic redirect
- 5 show qos interface all
- 4 show qos info traffic statistic
- 6 show qos interface line rate
- 7 show qos interface rate limit
- 9 show queue scheduler
- 8 show qos interface statistic
- 1 storm control
- 0 show queue scheduler cos map
- 2 traffic copy to cpu
- 3 traffic priority
- 4 traffic redirect
- 5 traffic statistic
- Stp configuration command
- Show spanning tree interface
- Chapter 14 stp configuration command
- Show spanning tree remote loop detect interface
- Spanning tree
- Spanning tree cost
- Spanning tree forward time
- Spanning tree hello time
- Spanning tree max age
- Spanning tree port priority
- Spanning tree mcheck
- 0 spanning tree point to point
- 1 spanning tree portfast
- 2 spanning tree transit limit
- 3 spanning tree priority
- 4 spanning tree mode
- 5 spanning tree remote loop detect
- 6 clear spanning tree
- Mstp cconfiguration command
- Spanning tree mst max hops
- Spanning tree mst name
- Spanning tree mst revision
- Spanning tree mst instance vlan
- Spanning tree mst instance instance num priority
- Spanning tree mst external cost
- Spanning tree mst instance cost
- Spanning tree mst instance port priority
- Show spanning tree mst config id
- 0 show spanning tree mst instance interface
- Domain configuration command
- Chapter 15 802 x configuration command
- Access limit
- Default domain name enbale
- Domain
- Show domain
- Radius host binding
- Radius server configuration command
- Primary ip
- Radius host
- Realtime account
- Second ip
- Secret key
- Show radius host
- Username format
- 802 x related configuration command
- Dot1x daemon
- Dot1x eap finish
- Dot1x eap transfer
- Dot1x max user
- Dot1x port control
- Dot1x re authenticate
- Dot1x re authentication
- Dot1x timeout re authperiod
- 0 dot1x user cut
- 1 show dot1x
- 2 show dot1x daemon
- 3 show dot1x interface
- 4 show dot1x session
- Qtech config show dot1x session
- Display all the onlined authentication users
- Sntp client configuration command list
- Show sntp client
- Command
- Chapter 16 sntp client configuration command
- Chapter 16 sntp client configuration
- Sntp client
- Sntp client authenticate
- Sntp client authentication key
- Sntp client broadcastdelay
- Sntp client mode
- Sntp client multicast ttl
- Sntp client poll interval
- Sntp client retransmit
- 0 sntp client retransmit interval
- 1 sntp client valid server
- 2 sntp server
- 3 sntp trusted key
- Syslog configuration command
- Chapter 17 syslog configiration command
- Show logging buffered
- Show logging
- Show logging flash
- Show logging filter
- Show debug
- Logging
- Logging timestamps
- Logging sequence numbers
- Logging language
- 0 logging monitor
- 1 terminal monitor
- 2 logging buffered
- 4 logging flash
- 3 clear logging buffered
- 5 clear logging flash
- 6 logging host
- 7 logging facility
- 8 logging source
- 9 logging snmp agent
- 0 debug
- 1 upload logging
- Ssh configuration command list
- Show ssh
- Chapter 18 ssh configuration command
- Show keyfile
- Crypto key generate rsa
- Crypto key zeroize rsa
- Crypto key refresh
- Load keyfile
- Upload keyfile
- Qtech upload keyfile public tftp 1 pub txt
- Vrrp configuration command list
- Ip vrrp
- Chapter 19 vrrp configuration command
- Show vrrp
- Vrrp ping enable
- Vrrp preempt
- Vrrp priority
- Vrrp timer
- Configuration files management
- Command
- Chapter 20 switch manage and maintenance command
- Chapter 20 switch manage and maintenance
- Buildrun mode continue
- Clear startup config
- Buildrun mode stop
- Copy nm interface config startup config
- Copy running config startup config
- Show running config
- Copy startup config running config
- Show startup config
- Online loading upgrade program
- Load application ftp
- Load application tftp
- Load application xmodem
- Load configuration ftp
- Load configuration tftp
- Load configuration xmodem
- Load whole bootrom ftp
- Load whole bootrom tftp
- Load whole bootrom xmodem
- 0 upload alarm ftp
- 1 upload alarm tftp
- 2 upload configuration ftp
- 3 upload configuration tftp
- 4 upload logging ftp
- 5 upload logging tftp
- Reboot switch
- Reboot
- Basic configuration and maintenance
- Broadcast suppression
- Clock set
- Clock timezone
- Discard bpdu
- Dlf forward
- Loopback
- Mac address table
- Mac address table age time
- Mac address table learning
- 0 mac address table max mac count
- 1 ping
- 3 show clock
- 2 show broadcast suppression
- 4 show cpu
- 5 show dhcp server clients
- 7 show dlf forward
- 6 show discard bpdu
- 9 show mac address table
- 8 show ip fdb
- 0 show mac address table age time
- 2 show memory
- 1 show mac address table learning
- 4 show users
- 3 show system
- 5 show version
- 6 login access list telnet limit
- 7 tracert
- Snmp configuration
- Show snmp community
- Show snmp contact
- Show snmp host
- Show snmp notify
- Show snmp location
- Show snmp engineid
- Show snmp group
- Show snmp user
- Show snmp view
- 0 snmp server community
- 1 snmp server contact
- 2 snmp server host
- 3 snmp server location
- 4 snmp server name
- 5 snmp server enable traps
- 6 snmp server trap source
- 7 snmp server engineid
- 8 snmp server view
- 9 snmp server group
- 0 snmp server user
- Manage ip restriction configuration
- Login access list
- Telnet client
- Show login access list
- Telnet
- Stop telnet client
- Show telnet client
- Cpu alarm configuration command
- Alarm cpu
- Alarm cpu threshold
- Show alarm cpu
- Mail alarm configuration
- Mailalarm server
- Mailalarm
- Mailalarm receiver
- Mailalarm ccaddr
- Mailalarm smtp authentication
- Mailalarm logging level
- Show mailalarm
- Anti dos attack
- Anti dos ip fragment
- Anti dos ip ttl
- Show anti dos
- Lldp configuration command
- Chapter 21 lldp configuration command
- Lldp hello time
- Lldp rx tx rxtx
- Lldp hold time
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Узнайте, как настроить SNTP клиента для фильтрации серверов времени и защиты от атак. Примеры команд и рекомендации по конфигурации.
