Home Theater Server User Manual
Table Of Contents
- Contents
- About This Document
- Network Security
- TCP SYN attacks
- IP TCP syn-proxy
- Granular application of syn-proxy feature
- Syn-def
- No response to non-SYN first packet of a TCP flow
- Prioritizing management traffic
- Peak BP utilization with TRAP
- Transaction Rate Limit (TRL)
- Understanding transaction rate limit
- Configuring transaction rate limit
- Configuring the maximum number of rules
- Saving a TRL configuration
- Transaction rate limit command reference
- Global TRL
- TRL plus security ACL-ID
- security acl-id
- Transaction rate limit hold-down value
- Displaying TRL rules statistics
- Displaying TRL rules in a policy
- Displaying IP address with held down traffic
- Refusing new connections from a specified IP address
- HTTP TRL
- Overview of HTTP TRL
- Configuring HTTP TRL
- Displaying HTTP TRL
- Display all HTTP TRL policies
- Display HTTP TRL policy from index
- Display HTTP TRL policy client
- Display HTTP TRL policy starting from index
- Display HTTP TRL policy matching a regular expression
- Display HTTP TRL policy client index (MP)
- Display HTTP TRL policy client index (BP)
- Display HTTP TRL policy for all client entries (BP)
- Downloading an HTTP TRL policy through TFTP
- HTTP TRL policy commands
- Logging for DoS Attacks
- Maximum connections
- clear statistics dos-attack
- Maximum concurrent connection limit per client
- Firewall load balancing enhancements
- Syn-cookie threshhold trap
- Service port attack protection in hardware
- Traffic segmentation
- DNS attack protection
- Access Control List
- How ServerIron processes ACLs
- Default ACL action
- Types of IP ACLs
- ACL IDs and entries
- ACL entries and the Layer 4 CAM
- Configuring numbered and named ACLs
- Modifying ACLs
- Displaying a list of ACL entries
- Applying an ACLs to interfaces
- ACL logging
- Dropping all fragments that exactly match a flow-based ACL
- Enabling ACL filtering of fragmented packets
- Enabling hardware filtering for packets denied by flow-based ACLs
- Enabling strict TCP or UDP mode for flow-based ACLs
- ACLs and ICMP
- Using ACLs and NAT on the same interface (flow-based ACLs)
- Displaying ACL bindings
- Troubleshooting rule-based ACLs
- IPv6 Access Control Lists
- Network Address Translation
- Syn-Proxy and DoS Protection
- Understanding Syn-Proxy
- Configuring Syn-Proxy
- DDoS protection
- Configuring a security filter
- Configuring a Generic Rule
- Configuring a rule for common attack types
- Configuring a rule for ip-option attack types
- Configuring a rule for icmp-type options
- Configuring a rule for IPv6 ICMP types
- Configuring a rule for IPv6 ext header types
- Binding the filter to an interface
- Clearing DOS attack statistics
- Clearing all DDOS Filter & Attack Counters
- Logging for DoS attacks
- Displaying security filter statistics
- Address-sweep and port-scan logging
- Secure Socket Layer (SSL) Acceleration
- SSL overview
- SSL acceleration on the ServerIron ADX
- Configuring SSL on a ServerIron ADX
- Basic SSL profile configuration
- Advanced SSL profile configuration
- Configuring Real and Virtual Servers for SSL Termination and Proxy Mode
- Configuration Examples for SSL Termination and Proxy Modes
- SSL debug and troubleshooting commands
- Displaying socket information

ServerIron ADX Security Guide 13
53-1002440-03
Transaction Rate Limit (TRL)
1
Saving a TRL configuration
The following applies to saving a TRL config:
• the startup-config cannot store 15,000 IPv4 and 15,000 IPv6 rules.
• If the total number of IPv4 and IPv6 rules exceeds 2500, issuing the write mem command
stores the TRL rules in the “trl_conf.txt” file on the internal USB drive.
• the policy config and global/local maximum rule count config is always stored in the
startup-config.
Disabling the storage of TRL rules on the internal USB drive
By default, storage of TRL rules on the internal USB drive of a ServerIron ADX is enabled. You can
disable the storage of TRL rules on the internal USB drive of a ServerIron ADX as shown.
ServerIronADX(config)# no client-trans-rate-limit usb-config-gen
Syntax: no client-trans-rate-limit usb-config-gen
NOTE
Where the storage of TRL rules on the internal USB drive of a ServerIron ADX is disabled and the
total rules exceeds 2500, only 2500 rules would be saved in startup-config.
Transaction rate limit command reference
This section describes the syntax, semantics, and usage for each transaction rate limit command.
This section contains the following sections:
• “client-trans-rate-limit”
• “trl”
client-trans-rate-limit
Use the client-trans-rate-limit command in the global configuration mode to configure a transaction
rate limit rule name and traffic type.
Syntax: client-trans-rate-limit {icmp <name> | default} | {tcp <name> | default} |
{udp <name> | default}
icmp - Specifies ICMP transaction rate limit for client subnet.
tcp - Specifies TCP transaction rate limit for client subnet.
udp - Specifies UDP transaction rate limit for client subnet.
<name> - Specifies the name for this configuration.
default - Specifies default.
trl
Use the trl command in the global configuration client-trl mode to configure transaction rate limit
rules.










