Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 4
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iv ServerIron ADX Firewall Load Balancing Guide
53-1002436-01
DRAFT: BROCADE CONFIDENTIAL
Chapter 2 Configuring Basic FWLB
In this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Configuring basic Layer 3 FWLB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Configuration guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Configuring basic Layer 3 FWLB . . . . . . . . . . . . . . . . . . . . . . . . .18
Configuration example for basic Layer 3 FWLB . . . . . . . . . . . . . . . .22
IPv4 example for basic Layer 3 FWLB . . . . . . . . . . . . . . . . . . . .22
IPv6 example for basic Layer 3 FWLB . . . . . . . . . . . . . . . . . . . . 24
Configuration examples with Layer 3 routing support . . . . . . . . . . .25
Basic FWLB with one sub-net and one virtual
routing interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Basic FWLB with multiple sub-nets and multiple
virtual routing interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Chapter 3 Configuring HA FWLB
Understanding ServerIron FWLB . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Layer 3 or Layer 4 sessions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Session limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Session aging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Configuring HA active-active FWLB . . . . . . . . . . . . . . . . . . . . . . . . . .39
Overview of active-active FWLB . . . . . . . . . . . . . . . . . . . . . . . . .39
HA FWLB configuration guidelines . . . . . . . . . . . . . . . . . . . . . . .40
Configuring the management IP address and
default gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Configuring the firewall port . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Configuring the partner port . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Configuring the additional data link (the always-active link) . .43
Configuring the router port . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Configuring the firewalls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Adding the firewalls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Changing the maximum number of sessions . . . . . . . . . . . . . .46
Connection rate control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Limiting the number of new connections for an application. . .46
Adding the firewalls to the firewall group . . . . . . . . . . . . . . . . . . 47
Changing the load balancing method. . . . . . . . . . . . . . . . . . . . . 47
Hashing load balance metric in FWLB . . . . . . . . . . . . . . . . . . . .48
Enabling the active-active mode. . . . . . . . . . . . . . . . . . . . . . . . .48
Configuring the paths and static MAC address entries. . . . . . .48
Dropping packets when a firewall reaches its limit . . . . . . . . . .50
Restricting TCP traffic to a firewall to established sessions . . .50
Complete CLI example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Configuring active-active HA FWLB . . . . . . . . . . . . . . . . . . . . . . . . . .56
External ServerIron ADX standby A (Ext-SI-A) configuration . . . 57
External ServerIron ADX standby B (Ext-SI-B) configuration . . .58
Internal ServerIron ADX C (Int-SI-C) Configuration. . . . . . . . . . .60
Internal ServerIron ADX D (Int-SI-D) configuration. . . . . . . . . . . 61
Configuring active-active HA FWLB with VRRP . . . . . . . . . . . . . . . . .62
Overview of active-active FWLB with VRRP . . . . . . . . . . . . . . . .62
- ServerIron ADX 1
- Document History 2
- Contents 3
- About This Document 8
- Document conventions 9
- Notice to the reader 10
- Related publications 11
- ServerIron FWLB Overview 12
- Firewall environments 14
- Load balancing paths 15
- Firewall selection 17
- Hashing mechanism 17
- Stateful FWLB 18
- Health checks 18
- Path health checks 19
- Application health checks 19
- Firewall health check debug 21
- Basic FWLB topology 22
- HA FWLB topology 23
- Failover 24
- Router paths 24
- Multizone FWLB topology 25
- FWLB configuration limits 26
- Configuring Basic FWLB 28
- IPv4 Firewall-1 37
- IPv4 Firewall-2 37
- External 40
- Internal 40
- Firewall-2 42
- Firewall-1 42
- Configuring HA FWLB 48
- Session limits 49
- Session aging 49
- Task Reference 52
- Configuring the firewall port 53
- Configuring the partner port 54
- Configuring the router port 55
- Configuring the firewalls 55
- Adding the firewalls 55
- Connection rate control 57
- Complete CLI example 62
- HA FWLB with VRRP 73
- Usage notes 78
- Configuring Multizone FWLB 82
- Zone 3Zone 2 84
- Zone1-SI(config)# no span 85
- Failover algorithm 92
- Commands on Zone1-SI-A zone 1 92
- DRAFT: BROCADE CONFIDENTIAL 100
- 53-1002436-01 102
- SI-A SI-A 104
- In this chapter 124
- NAT firewalls 124
- Extra firewall method 129
- Access policy method 130
- Specifying the partner port 134
- Specifying the router ports 134
- Configuring FWLB and SLB 146
- Configuring SLB-to-FWLB 148
- Configuring the real servers 149
- Enabling SLB-to-FWLB 150
- Configuring FWLB-to-SLB 152
- Enabling FWLB-to-SLB 154
- FWLB configuration overview 166
- TCP/UDP port statistics 169
- FWLB path information 172
- Field Description 173
- • 6 – TCP 174
- • 17 – UDP 174
- In this appendix 176
- FWLB selection algorithms 182
- Configuration guidelines 186
- Denying FWLB 187
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