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Setting the Dynamic Host Control Protocol (DHCP) Server

3-4 PortMaster Configuration Guide

Figure 3-1

Cable Modem Telephone Return Interface Startup

Internet

10.66.98.96

DHCP server

WAN

Cable

Headend

Coaxial cable

interface

Dynamic configuration

Cable modem

router

Telephone interface

172.16.98.67

192.168.33.10

11820024

PPP connection

asynchronous

IP Packet

DST 192.168.33.10

SRC

DHCP Response

Coaxial cable interface

address = 172.16.98.67

Configuration info.

10.66.98.96

IP Packet

DST 10.66.98.96

SRC

DHCP Request

192.168.33.10

IP Packet

DST 255.255.255.255

SRC

DHCP Request

192.168.33.10

PM3

Main Page

Default Chapter1
- Configuration Guide1
- Copyright and Trademarks2
- Table of Contents3
About this Guide17
- Audience17
- Portmaster Documentation17
- Additional References19
- Document Conventions22
- Document Advisories23
- Contacting Lucent Remote Access Technical Support23
  - For the EMEA Region24
  - For North America, Latin America, and the Asia Pacific Region24
- Portmaster Training Courses24
- Subscribing to Portmaster Mailing Lists25
1 Introduction27
- Portmaster Software27
- Preconfiguration Planning28
- Configuration Tips29
- Basic Configuration Steps30
2 How the Portmaster Works33
- Booting the Portmaster33
- Portmaster Initialization35
- On-Demand Connections36
- Portmaster Security Management36
- Port Status and Configuration37
3 Configuring Global Settings39
- Setting the System Name40
- Setting the Administrative Password40
- Setting the Dynamic Host Control Protocol (DHCP) Server40
  - How the Cable Modem Telephone Return System Works41
- Setting the Default Route Gateway43
- Configuring Default Routing44
- Configuring Name Resolution44
- Setting the Telnet Port47
  - Using the Telnet Port as a Console Port47
- Setting the Number of Management Application Connections47
- Setting System Logging47
  - Setting the Loghost48
  - Disabling and Redirecting Syslog Messages48
- Setting Administrative Logins to Serial Ports50
- Configuring an IP Address Pool50
- Setting the Reported IP Address51
- Configuring SNMP51
- Displaying the Routing Table61
- Setting Static Routes62
- Enabling Netbios Broadcast Packet Propagation67
- Setting Authentication for Dial-In Users67
- Setting Call-Check Authentication68
- Setting the ISDN Switch68
4 Configuring the Ethernet Interface69
- Setting General Ethernet Parameters69
  - Configuring RIP Routing69
  - Applying Filters70
- Setting IP Parameters71
- Setting Ethernet IPX Parameters73
- Configuring Ethernet Subinterfaces75
- Setting OSPF on the Ethernet Interface76
5 Configuring an Asynchronous Port77
- Asynchronous Port Uses77
- General Asynchronous Port Settings79
- Configuring a Portmaster for Login Users84
- Configuring a Port for Access to Shared Devices87
  - Setting the Device Service90
- Configuring a Port for Network Access91
- Configuring a Port for a Dedicated Connection96
- Connecting Without TCP/IP Support101
6 Configuring a Synchronous WAN Port103
- Synchronous Port Uses103
- Configuring WAN Port Settings106
7 Configuring Dial-In Users115
- Configuring the User Table115
- User Types117
  - Network Users117
  - Login Users117
- Configuring Settings for Network and Login Users118
- Configuring Network Users118
- Configuring Login Users124
8 Configuring Dial-Out Connections129
- Configuring the Location Table129
- Setting Multiline Load Balancing139
  - Setting the Maximum Number of Dial-Out Ports140
  - Setting Bandwidth-On-Demand140
- Setting Filters141
  - Input Filters141
  - Output Filters141
- Testing Your Location Configuration142
9 Configuring Filters143
- Overview of Portmaster Filtering143
- Creating Filters147
- Displaying Filters150
- Deleting Filters150
- Example Filters151
- Restricting User Access157
10 Using Modems159
- Null Modem Cable and Signals159
- Modem Functions160
- Using Automatic Modem Configuration160
- Configuring Ports for Modem Use165
- Configuring General Settings169
  - Displaying Line Status169
11 Configuring the Portmaster 3169
- Configuring Line Use170
- Setting Channel Groups170
- Setting the Channel Rate171
- Setting the Inband Signaling Protocol for T1171
- Setting the Inband Signaling Protocol for E1172
- Configuring ISDN PRI Settings173
- Using True Digital Modems176
- Using Channelized T1178
- Using the T1 Expansion Card180
- Using Multichassis PPP183
- Troubleshooting the Portmaster 3184
12 Using ISDN BRI185
- Overview of ISDN BRI Connections185
  - Provisioning187
- Configuring ISDN188
- ISDN Port Configuration Tips193
- ISDN BRI Unnumbered IP Configuration Example193
- Troubleshooting an ISDN BRI Connection205
  - Interpreting ISDN BRI Port Status206
13 Using Frame Relay207
- Overview of Frame Relay207
- Frame Relay Configuration on the Portmaster210
- Configuration Steps for a Frame Relay Connection213
  - Configuring the Portmaster in Bangkok214
  - Configuring the Portmaster in New York215
- Troubleshooting a Frame Relay Configuration217
- Frame Relay Subinterfaces218
14 Using Synchronous V.25Bis Connections223
- Overview of Synchronous V.25Bis Dial-Up Connections223
- Configuration Steps for a Synchronous V.25Bis Connection225
- Troubleshooting a Synchronous V.25Bis Connection235
15 Using Office-To-Office Connections237
- Overview of Example Configuration237
- Configuration Steps for an Office-To-Office Connection239
- Setting the Console Port for Multiline Load Balancing249
- Using ISDN for On-Demand Connections251
16 Using Internet Connections253
- Overview of Continuous Internet Connections255
- Configuration Steps for an Internet Connection255
- Providing Network Filtering262
- Using ISDN for Internet Connections263
17 Providing User Dial-In Access265
- Overview of Dial-In Configuration265
  - Example Configuration267
- Configuration Steps for Dial-In Access268
18 Accessing Shared Devices277
- Overview of Shared Device Access Methods277
  - Host Device Configuration277
  - Network Device Configuration278
- Configuration Steps for Shared Device Access280
19 Using Synchronous Leased Lines287
- Overview of Leased Line Connections287
- Configuration Steps for Leased Line Connections289
  - Configuring the Portmaster Office Router in Rome290
  - Configuring the Portmaster Office Router in Florence292
- Troubleshooting a Leased Line Connection294
Networking Concepts297
- Network Addressing297
- Using Naming Services and the Host Table304
- Managing Network Security305
  - Radius306
  - Choicenet306
TCP and UDP Ports and Services307
Command Index347

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