Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 159
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148 ServerIron ADX Firewall Load Balancing Guide
53-1002436-01
Configuration example for FWLB-to-SLB
6
DRAFT: BROCADE CONFIDENTIAL
The following commands add the firewall definitions to the firewall port group (always group 2). The
firewall group contains all the ports in VLAN 1 (the default VLAN).
SI-Ext-A(config)# server fw-group 2
SI-Ext-A(config-fw-2)# fw-name fw1
SI-Ext-A(config-fw-2)# fw-name fw2
The following command enables the active-active mode.
SI-Ext-A(config-fw-2)# sym-priority 1
NOTE
Do not use the same number on both ServerIrons. For example, enter sym-priority 1 on one of the
ServerIron ADXs and sym-priority 255 on the other ServerIron.
The following commands add the paths through the firewalls to the other ServerIron ADX. Each
path consists of a path number, a ServerIron ADX port number, the IP address at the other end of
the path, and the next-hop IP address. In this example, the topology does not contain routers other
than the ServerIron ADXs. If your topology does contain other routers, configure firewall paths for
the routers too. For router paths, use the same IP address as the path destination and the next
hop.
NOTE
The path IDs must be in contiguous, ascending numerical order, starting with 1. For example, path
sequence 1, 2, 3, 4 is valid. Path sequence 4, 3, 2, 1 or 1, 3, 4, 5 is not valid.
SI-Ext-A(config-fw-2)# fwall-info 1 4/1 10.10.2.222 10.10.1.1
SI-Ext-A(config-fw-2)# fwall-info 2 3/1 10.10.2.222 10.10.1.2
SI-Ext-A(config-fw-2)# fwall-info 3 4/1 10.10.2.223 10.10.1.1
SI-Ext-A(config-fw-2)# fwall-info 4 3/1 10.10.2.223 10.10.1.2
The following command sets the load balancing method to balance requests based on the firewall
that has the least number of connections for the requested service. Since the firewall definitions
above specify the HTTP service, the ServerIron ADX will load balance requests based on the firewall
that has fewer HTTP session entries in the ServerIron ADX session table.
SI-Ext-A(config-fw-2)# fw-predictor per-service-least-conn
The following command is part of the always-active feature, which provides the additional data link
between the this ServerIron ADX and its partner.
SI-Ext-A(config-fw-2)# l2-fwall
SI-Ext-A(config-fw-2)# exit
The following commands add static MAC entries for the firewall interfaces with the ServerIron ADX.
The static MAC entries are required only if the configuration uses static routes and a single virtual
routing interface, as in this example, and if the default gateway for the client or server is the
firewall. If the configuration uses a dynamic routing protocol (for example, RIP or OSPF), the static
entries are not required. Alternatively, the static entries are not required if you use the ServerIron
itself as the default gateway for the client or the server. For example, the static entries are not
required if you configure the client to use 10.10.1.111 as its default gateway.
SI-Ext-A(config)# vlan 1
SI-Ext-A(config-vlan-1)# static-mac-address 00e0.5201.0426 ethernet 4/1
priority 1 router-type
SI-Ext-A(config-vlan-1)# static-mac-address 00e0.5201.2180 ethernet 3/1
priority 1 router-type
SI-Ext-A(config-vlan-1)# exit
- 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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