
Prestige 2602R Series User’s Guide
140
Chapter 12 Firewalls
Figure 54
Smurf Attack
12.4.2.1 ICMP Vulnerability
ICMP is an error-reporting protocol that works in concert with IP. The following ICMP types
trigger an alert:
12.4.2.2 Illegal Commands (NetBIOS and SMTP)
The only legal NetBIOS commands are the following - all others are illegal.
All SMTP commands are illegal except for those displayed in the following tables.
Table 39
ICMP Commands That Trigger Alerts
5
REDIRECT
13
TIMESTAMP_REQUEST
14
TIMESTAMP_REPLY
17
ADDRESS_MASK_REQUEST
18
ADDRESS_MASK_REPLY
Table 40
Legal NetBIOS Commands
MESSAGE:
REQUEST:
POSITIVE:
VE:
RETARGET:
KEEPALIVE:
Table 41
Legal SMTP Commands
AUTH
DATA
EHLO
ETRN
EXPN
HELO
HELP
NOOP
QUIT
RCPT
RSET
SAML
SEND
SOML
TURN
VRFY
Summary of Contents for Prestige 2602R Series
Page 1: ...Prestige 2602R Series ADSL VoIP IAD User s Guide Version 3 40 7 2005...
Page 2: ......
Page 23: ...Prestige 2602R Series User s Guide Table of Contents 23 Index 439...
Page 24: ...Prestige 2602R Series User s Guide 24 Table of Contents...
Page 32: ...Prestige 2602R Series User s Guide 32 List of Figures...
Page 40: ...Prestige 2602R Series User s Guide 40 Introduction to DSL...
Page 50: ...Prestige 2602R Series User s Guide 50 Chapter 1 Getting To Know Your Prestige...
Page 56: ...Prestige 2602R Series User s Guide 56 Chapter 2 Introducing the Web Configurator...
Page 90: ...Prestige 2602R Series User s Guide 90 Chapter 5 WAN Setup...
Page 102: ...Prestige 2602R Series User s Guide 102 Chapter 6 Network Address Translation NAT Screens...
Page 134: ...Prestige 2602R Series User s Guide 134 Chapter 11 Time and Date...
Page 148: ...Prestige 2602R Series User s Guide 148 Chapter 12 Firewalls...
Page 170: ...Prestige 2602R Series User s Guide 170 Chapter 13 Firewall Configuration...
Page 178: ...Prestige 2602R Series User s Guide 178 Chapter 15 Remote Management Configuration...
Page 192: ...Prestige 2602R Series User s Guide 192 Chapter 16 Universal Plug and Play UPnP...
Page 214: ...Prestige 2602R Series User s Guide 214 Chapter 19 Maintenance Figure 104 System Status...
Page 224: ...Prestige 2602R Series User s Guide 224 Chapter 19 Maintenance...
Page 234: ...Prestige 2602R Series User s Guide 234 Chapter 21 Menu 1 General Setup...
Page 238: ...Prestige 2602R Series User s Guide 238 Chapter 22 Menu 2 WAN Backup Setup...
Page 242: ...Prestige 2602R Series User s Guide 242 Chapter 23 Menu 3 LAN Setup...
Page 248: ...Prestige 2602R Series User s Guide 248 Chapter 24 Internet Access...
Page 262: ...Prestige 2602R Series User s Guide 262 Chapter 26 Static Route Setup...
Page 266: ...Prestige 2602R Series User s Guide 266 Chapter 27 Bridging Setup...
Page 282: ...Prestige 2602R Series User s Guide 282 Chapter 28 Network Address Translation NAT...
Page 312: ...Prestige 2602R Series User s Guide 312 Chapter 32 System Information and Diagnosis...
Page 324: ...Prestige 2602R Series User s Guide 324 Chapter 33 Firmware and Configuration File Maintenance...
Page 330: ...Prestige 2602R Series User s Guide 330 Chapter 34 System Maintenance...
Page 334: ...Prestige 2602R Series User s Guide 334 Chapter 35 Remote Management...
Page 346: ...Prestige 2602R Series User s Guide 346 Chapter 37 Call Scheduling...
Page 358: ...Prestige 2602R Series User s Guide 358 Chapter 38 Troubleshooting...
Page 388: ...Prestige 2602R Series User s Guide 388 Appendix D IP Subnetting...
Page 392: ...Prestige 2602R Series User s Guide 392 Appendix E Triangle Route...
Page 394: ...Prestige 2602R Series User s Guide 394 Appendix F SIP Passthrough...
Page 420: ...Prestige 2602R Series User s Guide 420 Appendix G Internal SPTGEN...
Page 422: ...Prestige 2602R Series User s Guide 422 Appendix H Command Interpreter...
Page 424: ...Prestige 2602R Series User s Guide 424 Appendix I Firewall Commands...
Page 438: ...Prestige 2602R Series User s Guide 438 Appendix K Log Descriptions...