Class E IPv4 packets
By default, the Citrix ADC appliance drops any packets if they contain any class E IPv4 address in the source IP or the destination IP fields. If your setup is using class E IPv4 addresses, you can configure the Citrix ADC appliance to process class E IPv4 packets.
Before you begin
Before you begin configuring a Citrix ADC appliance to process class E IPv4 packets, note the following points:
- Citrix ADC appliances do not support configuring any Citrix ADC owned IPv4 address (for example, SNIP and VIP) in the class E range. Citrix ADC appliances only support processing of class E IPv4 packets.
- A Citrix ADC appliance internally uses class E IPv4 addresses for the IPv6 feature. The Citrix ADC appliance does not support both features (processing class E IPv4 packets and IPv6 support) working at the same time. The Citrix ADC appliance imposes a restriction to not enable the IPv6 feature when processing of class E IPv4 packets is enabled, and vice versa.
Configuration steps
Configuring a Citrix ADC appliance to process class E IPv4 packets consist of the task of enabling theIPv4 Class E address clients(allowClassEIPv4) Layer 3 parameter.
CLI procedures
To configure the Citrix ADC appliance to process Class E IPv4 packets by using the CLI:
At the command prompt, type:
-
| set l3param-allowClassEIPv4(ENABLED |
DISABLED) |
- show l3param
Sample Configuration:
> set l3param -allowClassEIPv4 ENABLED Done > sh l3param Network L3 related Configuration Parameters icmpgen_rate_threshold : 100 srcnat : ENABLED override_rnat : DISABLED drop_df_flag : DISABLED . . . IPv6DynamicRouting : DISABLED allowClassEIPv4 : ENABLED Done
GUI procedures
To configure the Citrix ADC appliance to process Class E IPv4 packets by using the GUI:
- Navigate toSystem>Network, and then in theSettingssection, clickConfigure Layer 3 Parameters.
- SelectIPv4 Class E address clientsand clickOK.
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