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System Administration Guide: IP Services Oracle Solaris 10 8/11 Information Library |
Part I Introducing System Administration: IP Services
1. Oracle Solaris TCP/IP Protocol Suite (Overview)
2. Planning Your TCP/IP Network (Tasks)
3. Introducing IPv6 (Overview)
4. Planning an IPv6 Network (Tasks)
5. Configuring TCP/IP Network Services and IPv4 Addressing (Tasks)
6. Administering Network Interfaces (Tasks)
7. Configuring an IPv6 Network (Tasks)
8. Administering a TCP/IP Network (Tasks)
9. Troubleshooting Network Problems (Tasks)
10. TCP/IP and IPv4 in Depth (Reference)
13. Planning for DHCP Service (Tasks)
Preparing Your Network for the DHCP Service (Task Map)
Determining the Number of DHCP Servers
Updating System Files and Netmask Tables
Making Decisions for Your DHCP Server Configuration (Task Map)
Selecting a Host to Run the DHCP Service
Determining Routers for DHCP Clients
Making Decisions for IP Address Management (Task Map)
Number and Ranges of IP Addresses
Default Client Configuration Macros
Dynamic and Permanent Lease Types
Reserved IP Addresses and Lease Type
Planning DHCP Configuration of Your Remote Networks
Selecting the Tool for Configuring DHCP
Comparison of DHCP Manager and dhcpconfig
14. Configuring the DHCP Service (Tasks)
15. Administering DHCP (Tasks)
16. Configuring and Administering the DHCP Client
17. Troubleshooting DHCP (Reference)
18. DHCP Commands and Files (Reference)
19. IP Security Architecture (Overview)
21. IP Security Architecture (Reference)
22. Internet Key Exchange (Overview)
24. Internet Key Exchange (Reference)
25. IP Filter in Oracle Solaris (Overview)
28. Administering Mobile IP (Tasks)
29. Mobile IP Files and Commands (Reference)
30. Introducing IPMP (Overview)
31. Administering IPMP (Tasks)
Part VII IP Quality of Service (IPQoS)
32. Introducing IPQoS (Overview)
33. Planning for an IPQoS-Enabled Network (Tasks)
34. Creating the IPQoS Configuration File (Tasks)
35. Starting and Maintaining IPQoS (Tasks)
36. Using Flow Accounting and Statistics Gathering (Tasks)
If you want to configure more than one DHCP server to manage your IP addresses, consider the following guidelines:
Divide the pool of IP addresses so that each server is responsible for a range of addresses, and there is no overlap of responsibility.
Choose NIS+ as your data store, if available. If not, choose text files and specify a shared directory for the absolute path to the data store. The binary files data store cannot be shared.
Configure each server separately so that address ownership is allocated correctly and so that server-based macros can be automatically created.
Set up the servers to scan the options and macros in the dhcptab table at specified intervals so that the servers are using the latest information. You can use DHCP Manager to schedule automatic reading of dhcptab as described in Customizing Performance Options for the DHCP Server.
Be sure all clients can access all DHCP servers so that the servers can support one another. A client that has a valid IP address lease might try to verify its configuration or extend the lease when the server that owns the client's address is not reachable. Another server can respond to the client after the client has attempted to contact the primary server for 20 seconds. If a client requests a specific IP address, and the server that owns the address is not available, one of the other servers handles the request. In this case, the client does not receive the requested address. The client receives an IP address that is owned by the responding DHCP server.