HP SuperStack 3 Load Balancer Appliance Manual de usuario Pagina 72
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72 CHAPTER 8: CONFIGURING FOR LOAD BALANCING
Modifying Security
Filters (Attack
Mitigation)
The Server Load Balancer provides Attack Mitigation features that help to
prevent Denial of Service and Distributed Denial of Service attacks.
When enabled, the attack mitigation features cause the Server Load
Balancer to recognize and filter out security attacks. Table 12 describes
the available filters and their descriptions.
Modifying Security
Filters
To modify the security filters, complete the following steps:
1 Click Device View on the Toolbar.
2 Select Security > Attack Filters.
3 Click Modify. The Modify Attack Filters page appears.
4 Select the attack filters you wish to enable and click OK.
Ta b l e 12 Filters and Descriptions
Filter Description
Smurf Filter Filter ICMP packets sent to broadcast or multicast
addresses and unsolicited ICMP ECHO replies
FTP Restricted Port Filter Filter out a range of FTP data port requests.
IP Source Route Filter Filter packets which contain the IP source route option.
LAND Attack Filter packets which have matching destination and
source IP addresses.
Fraggle Attack Filter Filter UDP ECHO requests sent to a broadcast or
multicast address and unsolicited UDP packets from
the UDP ECHO port.
FTP Bounce Filter Filter FTP traffic when the port command issued
contains an address that differs from the requesting
host.
IP Options Filter Filter packets that contain any IP options (for example,
Record Route and Time Stamp) in the packet header.
You can filter packets which have packet headers
containing only the Strict Source Route and Loose
Source Route IP options using the IP Source Route filter
slb_gsg.bk Page 72 Thursday, May 31, 2001 8:57 AM
- SuperStack 1
- Server Load Balancer 1
- Server Load Balancer Plus 1
- User Guide 1
- 3Com Corporation 2
- 5400 Bayfront Plaza 2
- Santa Clara, California 2
- 95052-8145 2
- CONTENTS 3
- 3 SETTING UP FOR MANAGEMENT 4
- A SAFETY INFORMATION 5
- C TECHNICAL SUPPORT 5
- REGULATORY NOTICES 6
- ABOUT THIS GUIDE 7
- Ta b l e 1 Notice Icons 8
- Ta b l e 2 Text Conventions 8
- Related Documentation 9 9
- 10 ABOUT THIS GUIDE 10
- INTRODUCING THE SERVER LOAD 11
- BALANCER 11
- About the Server 12
- Load Balancer 12
- Server Load 13
- Balancer — Front 13
- View Detail 13
- Ta b l e 5 LED Behavior 14
- Balancer — Rear 15
- Downloading 3Com 16
- Network Supervisor 16
- INSTALLING THE SERVER LOAD 17
- Choosing a Suitable 18
- Rack-mounting 19 19
- Choosing the 20
- Correct Cables 20
- Placing Units On 20
- Top of Each Other 20
- The Power-up 21
- Sequence 21
- Solving Problems 22
- Indicated by LEDs 22
- SETTING UP FOR MANAGEMENT 23
- ■ A default route 24
- WORKING WITH THE WEB 27
- INTERFACE 27
- Choosing a Browser 29 29
- Accessing the Web 30
- Interface 30
- Using the Web 31
- Figure 7 Summary View 32
- Using the Web Interface 33 33
- Figure 8 Device View 34
- Ta b l e 8 Color Key Codes 34
- Figure 9 Logical View 35
- Figure 10 Help View 37
- Setting up SNMP 38
- Management 38
- Upgrading 39
- Operating Software 39
- CONFIGURING NON-REDUNDANT 41
- SERVER LOAD BALANCING 41
- Balancing 42
- Configuration 42
- Configuring for 43
- Non-redundant 43
- CONFIGURING REDUNDANT 45
- Redundant Server 46
- Load Balancing 46
- Active-Passive 47
- Redundancy 47
- Active-Active 49
- Setting 51
- Settings 51
- CONFIGURING CACHE 53
- REDIRECTION 53
- Cache Redirection 54
- Defining a Cache 55
- Assigning Caches to 57
- Services 57
- Creating a Cache 58
- Profile (Optional) 58
- ■ Period 60
- ■ Retries field 60
- ■ Timeout 60
- CONFIGURING FOR LOAD 61
- BALANCING 61
- Defining a Server 62
- Changing Lan Port Roles 63 63
- Adding a Service 65 65
- Assigning Servers 66
- Adding a User 68
- Creating a Balance 69
- Modifying Security 72
- Filters (Attack 72
- Mitigation) 72
- SAFETY INFORMATION 75
- Important Safety 76
- Information 76
- L’information de 78
- Sécurité Importante 78
- Sicherheitsinformat 80
- Wichtige 80
- PPENDIX A: SAFETY INFORMATION 82
- TECHNICAL SPECIFICATIONS AND 83
- PIN-OUTS 83
- PC-AT Serial 9-pin to 9-pin 84
- TECHNICAL SUPPORT 85
- Support from Your 86
- Network Supplier 86
- Support from 3Com 87 87
- Asia, Pacific Rim 87
- PPENDIX C: TECHNICAL SUPPORT 88
- Returning Products 89
- INDEX 93 93
- World Wide Web (WWW) 85 93
- 94 INDEX 94
- SUPERSTACK 95
- OBTAINING WARRANTY 96
- SERVICE: 96
- REGISTER ONLINE FOR FREE 98
- SERVICE UPGRADE: 98
- OTHER USEFUL WEB SITE 98
- SERVICES PROVIDED BY 98
- 3COM INCLUDE: 98
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