Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 187
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176 ServerIron ADX Firewall Load Balancing Guide
53-1002436-01
Denying FWLB for specific applications
A
DRAFT: BROCADE CONFIDENTIAL
Denying FWLB
To deny FWLB for an application, enter commands such as the following. These commands
configure the ServerIron ADXs in
Figure 25 to deny FWLB for HTTP traffic, in both directions. On
ServerIron ADX A, FWLB is denied for traffic addressed to TCP port 80. On ServerIron ADX B, FWLB
is denied for traffic from TCP port 80.
ServerIron ADX A commands
The following commands configure three ACL entries. The first entry denies FWLB for packets
addressed to TCP port 80 (HTTP). The second ACL permits FWLB for all TCP applications. Packets
that do not match the first ACL entry match the second ACL entry and are provided with FWLB. The
third ACL permits FWLB for all UDP applications. The last two commands change the CLI level to the
firewall group configuration level and apply ACL 101 to the firewall group.
ServerIronADXA(config)# access-list 101 deny tcp any any eq http
ServerIronADXA(config)# access-list 101 permit tcp any any
ServerIronADXA(config)# access-list 101 permit udp any any
ServerIronADXA(config)# server fw-group 2
ServerIronADXA(config-fw-2)# acl-id 101
Syntax: [no] access-list <num> deny | permit <ip-protocol> <source-ip> | <hostname>
<wildcard> [<operator> <source-tcp/udp-port>] <destination-ip> | <hostname>
<wildcard> [<operator> <destination-tcp/udp-port>]
[precedence <name> | <num>] [tos <name> | <num>] [log]
Syntax: [no] acl-id <acl -id>
The <acl-id> parameter specifies a standard or extended ACL identifier.
ServerIron ADX B commands
These following commands are the same as the commands on ServerIron ADX A, except the first
ACL entry matches on TCP port 80 (eq http) as the destination TCP port on ServerIron ADX
A, but
matches as the source TCP port on ServerIron ADX
B.
ServerIronADXB(config)# access-list 101 deny tcp any eq http any
ServerIronADXB(config)# access-list 101 permit tcp any any
ServerIronADXB(config)# access-list 101 permit udp any any
ServerIronADXB(config)# server fw-group 2
ServerIronADXB(config-fw-2)# acl-id 101
- 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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