- About This Document
IP Address Configuration
ARP Configuration
DHCP Configuration
- Overview of DHCP
Key Concepts of DHCP
How DHCP Works
- Licensing Requirements and Limitations for DHCP
Configuring DHCP
Configuration Examples for DHCP
- Example for Configuring the Device as a DHCP Server (Based on the Interface Address Pool)
- Example for Configuring the DHCP Server to Allocate Different Network Parameters to Dynamic Clients and Static Clients in the Global Address Pool
- Example for Configuring a DHCP Server in a Super-VLAN
- Example for Configuring the Device as a DHCP Relay (Relay and Server Are Located on the Same Network)
- Example for Configuring a Device as the DHCP Relay Agent (Connected to the DHCP Server Across a BGP/MPLS IP VPN Tunnel)
- Example for Configuring a DHCP Client
- Example for Configuring a BOOTP Client
Troubleshooting DHCP
FAQ About DHCP
- How Can I Prevent the Auto-Config Function from Periodically Clearing DHCP-related Configurations on the Device?
- How Can I Ensure that Users Accessed Through a Fit AP Select a Correct DHCP Server? How Can I View DHCP Packet Exchange Logs?
- When Both the DHCP Server and Relay Functions Are Enabled on an Interface, Which Function Is Processed Preferentially?
- Why Does an IP address in an Address Pool Fail to Be Statically Bound?
- How Can I Import the DNS Server IP Address That the Device Obtains from the Upstream Network into an Address Pool?
- When RouterIndustrial Switch Router Functions as a DHCP Server, Can the DHCP Server Select an Address Pool Based on the Secondary IP Address?
DNS Configuration
- Overview of DNS
Understanding DNS
Application Scenarios for DNS
- Licensing Requirements and Limitations for DNS
Configuring a Device as a DNS Client
Configuring a Device as a DNS Proxy/Relay
Configuring a DDNS Client
Maintaining DNS
Configuration Examples for DNS
- Example for Configuring the DNS Client
- Example for Configuring DNS Proxy
- Example for Configuring the DDNS Client (Using the Update Mode Defined by the RFC2136)
- Example for Configuring the DDNS Client (Using the Update Mode Implemented Through the DDNS Service Provider www.oray.cn That Are Used as the DDNS Server)
- Example for Configuring a DDNS Client (Using the Update Mode Implemented Through the Siemens DDNS Server)
- Example for Configuring Association Between the DNS Server and NQA
Troubleshooting DNS
NAT Configuration
- Overview of NAT
Understanding NAT
Application Scenarios for NAT
- Licensing Requirements and Limitations for NAT
Configuring NAT
Configuring NAT for Overlapping Networks
Configuring NAT Traversal
- Configuring the Function of Discarding Packets That Do Not Match NAT Rules
Maintaining NAT
Configuration Examples for NAT
Troubleshooting NAT
FAQ About NAT
- Does NAT Support VPN Multi-Instance?
- Can the Global Address of the NAT Server Be an Address in the NAT Address Pool?
- Users on an Internal Network Cannot Access Internal Servers Using Domain Names. Why?
- Private Network User and Server Are in the Same VLAN. After NAT Server Is Configured on the VLANIF Interface, Why Cannot the User Access the Server Using Public Address?
- Which Interfaces Support NAT?
- Public Address Cannot Be Pinged When NAT Is Configured on the Device as the Egress Gateway. How Do I Solve the Problem?
- How Do I Prevent Packets Sent to an IP Address in a Configured NAT Address Pool from Being Discarded?
- What Should I Do If the CPU Usage Is High After DNS Mapping Is Configured?
- An External Phone Fails to Register With the SIP Server After a NAT Server Is Configured on the Outbound Interfaces of the Device Functioning as a SIP Server.
- Network Access Through Internet-side Port 80, 8080, or 443 Fails.
- What Are the Differences Between NAT Server and NAT Static Modes?
- What Are Differences of Easy IP and Address Pool?
UDP Helper Configuration
IP Performance Configuration
- Overview of IP Performance
- Default Settings for IP Performance
- Licensing Requirements and Limitations for IP Performance
Optimizing IP Performance
- Configuring Source IP Addresses Verification
- Configuring IP Packet Verification
- Configuring an Outbound Interface to Fragment IP Packets
- Configuring Virtual Fragment Reassembly of IP Packets
- Configuring Unequal Cost Multiple Path
- Configuring the Device to Process IP Packets with Options
- Configuring the Enhanced Forwarding Function for Control Packets Generated by the Device
- Disabling the Routing and Forwarding Function on 8FE1GE and 24GE Cards
- Configuring an Order Preserving Mode
- Configuring ICMP properties
- Configuring TCP Properties
- Configuring a Traffic Load Balancing Mode
- Configuring TCP/UDP Packet Protection
- Verifying the IP Performance Configuration
- Clearing IP Performance Statistics
FAQ About IP Performance
Basic IPv6 Configuration
- Overview of IPv6
Understanding IPv6
- Licensing Requirements and Limitations for IPv6
- Default Settings for IPv6
Configuring IPv6 Addresses for Interfaces
- Configuring ICMPv6 Packet Control
Configuring IPv6 Neighbor Discovery
Configuring PMTU
Configuring TCP6
- Configuring the Enhanced Forwarding Function for IPv6 Control Packets Generated by the Device
Maintaining IPv6
Configuration Examples for IPv6
FAQ About IPv6
DHCPv6 Configuration
- Overview of DHCPv6
Understanding DHCPv6
Application Scenarios for DHCPv6
- Default Settings for DHCPv6
- Licensing Requirements and Limitations for DHCPv6
Configuring a DHCPv6 Server
- Configuring the DHCPv6 DUID
- Configuring an IPv6 Address Pool
- (Optional) Configuring Network Server Addresses for the IPv6 Address Pool
- (Optional) Configuring the Options of an IPv6 Address Pool
- (Optional) Configuring the DHCPv6 Data Saving Function
- Enabling the DHCPv6 Server Function
- (Optional) Configuring the DHCPv6 Message Rate Limit and Alarm Function of DHCPv6 Messages Discarded
- (Optional) Configuring the Function of Recording a Log When an IPv6 Address or Prefix Is Allocated
- Verifying the DHCPv6 Server Configuration
Configuring a DHCPv6 PD Server
- Configuring the DHCPv6 DUID
- Configuring an IPv6 PD Address Pool
- (Optional) Configuring Network Server Addresses for the IPv6 Address Pool
- (Optional) Configuring the Options of an IPv6 Address Pool
- (Optional) Configuring the DHCPv6 Data Saving Function
- Enabling the DHCPv6 PD Server Function
- (Optional) Configuring the DHCPv6 Message Rate Limit and Alarm Function of DHCPv6 Messages Discarded
- Verifying the DHCPv6 PD Server Configuration
Configuring a DHCPv6 Relay Agent
- Configuring the DHCPv6 DUID
- Configuring the DHCPv6 Relay Function
- (Optional) Inserting the Interface-ID or Remote-ID Option Information into DHCPv6 Messages
- (Optional) Configuring the Function of Inserting the Option79 Field into DHCPv6 Messages
- (Optional) Configuring the DHCPv6 Message Rate Limit and Alarm Function of DHCPv6 Messages Discarded
- Verifying the DHCPv6 Relay Agent Configuration
Configuring a DHCPv6 Client
Configuring a DHCPv6 PD Client
Maintaining DHCPv6
Configuration Examples for DHCPv6
- Example for Configuring a DHCPv6 Server
- Example for Configuring a DHCPv6 PD Server
- Example for Configuring a DHCPv6 Relay to Assign IPv6 Addresses to the Clients in One Network Segment Connected to the Relay
- Example for Configuring a DHCPv6 Relay to Assign IPv6 Addresses to the Clients in Multiple Network Segments Connected to the Relay
- Example for Configuring a DHCPv6 PD Client
- Example for Configuring a DHCPv6 Client
IPv6 DNS configuration
IPv6 over IPv4 Tunnel Configuration
- Overview of IPv6 over IPv4 Tunnels
Understanding IPv6 over IPv4 Tunnels
- Licensing Requirements and Limitations for IPv6 over IPv4 Tunnels
Configuring an IPv4/IPv6 Dual Stack
Configuring an IPv6 over IPv4 Tunnel
- Monitoring the Running Status of the IPv6 over IPv4 Tunnel
Configuration Examples for IPv6 over IPv4 Tunnels
IPv4 over IPv6 Tunnel Configuration