Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 68
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ServerIron ADX Firewall Load Balancing Guide 57
53-1002436-01
Configuring active-active HA FWLB
3
DRAFT: BROCADE CONFIDENTIAL
• In the topology presented in this section, IP addresses of firewalls are different on each
ServerIron ADX. Use the other-ip command under the firewall configuration level to identify the
partner ServerIron ADX’s firewall address.
Syntax: [no] other-ip <ip-addr> | <ipv6-addr>
NOTE
IPv4 and IPv6 address formats cannot be mixed. Addresses must be entered in the same
format.
• This topology assumes that OSPF is running on firewalls, external routers, and internal routers.
These devices exchange OSPF messages (multicast packets) among them. When a ServerIron
ADX is in state 3, it will block multicast packets. In the attached topology, if Ext-SI-B is in state
3, it will block the OSPF multicast packets sent by the firewalls and Ext-Router-2 to prevent
Ext-Router-2 and the firewalls from learning OSPF routes through each other. Ext-Router-2
learns the OSPF routes of internal networks through Ext-Router-1. All the external traffic will be
going to Ext-SI-A.
• If the design requires ServerIron ADX (in state 3) not to block multicast packets, the server
fw-allow-multicast command must be configured on the ServerIron ADXs. When the command
is configured, the external routers can learn the OSPF routes from the firewalls and traffic can
go to both ServerIron ADXs.
Note that the following example uses the IPv4 address format and firewall group 2.
External ServerIron ADX standby A (Ext-SI-A) configuration
SI-StandbyA(config)# trunk switch ethernet 2/7 to 2/8
SI-StandbyA(config)# server fw-port 2/7
SI-StandbyA(config)# server partner-ports ethernet 4/5
SI-StandbyA(config)# server router-ports ethernet 2/1
SI-StandbyA(config)# server fw-name fw1 20.20.1.1
SI-StandbyA(config-rs-FW1)# other-ip 20.20.8.1
SI-StandbyA(config-rs-FW1)# port http
SI-StandbyA(config-rs-FW1)# port http no-health-check
SI-StandbyA(config-rs-FW1)# port http url "HEAD /"
SI-StandbyA(config-rs-FW1)# exit
SI-StandbyA(config)# server fw-name fw2 20.20.1.2
SI-StandbyA(config-rs-FW2)# other-ip 20.20.8.2
SI-StandbyA(config-rs-FW2)# port http
SI-StandbyA(config-rs-FW2)# port http no-health-check
SI-StandbyA(config-rs-FW2)# port http url "HEAD /"
SI-StandbyA(config-rs-FW2)# exit
SI-StandbyA(config)# server fw-name fw3 20.20.1.3
SI-StandbyA(config-rs-FW3)# other-ip 20.20.8.3
SI-StandbyA(config-rs-FW3)# port http
SI-StandbyA(config-rs-FW3)# port http no-health-check
SI-StandbyA(config-rs-FW3)# port http url "HEAD /"
SI-StandbyA(config-rs-FW3)# exit
SI-StandbyA(config)# server fw-name fw4 20.20.1.4
SI-StandbyA(config-rs-FW4)# other-ip 20.20.8.4
SI-StandbyA(config-rs-FW4)# port http
SI-StandbyA(config-rs-FW4)# port http no-health-check
SI-StandbyA(config-rs-FW4)# port http url "HEAD /"
- 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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