fwaccel dos allow

Description

The fwaccel dos allow command configures the allow-list for source IP addresses in the SecureXL Check Point product on a Security Gateway that accelerates IPv4 and IPv6 traffic that passes through a Security Gateway. Penalty Box.

This allow-list overrides which packet the SecureXL Penalty Box drops.

Important:

This command supports only IPv4.
In VSX Virtual System Extension. Check Point virtual networking solution, hosted on a computer or cluster with virtual abstractions of Check Point Security Gateways and other network devices. These Virtual Devices provide the same functionality as their physical counterparts. mode, you must go to the context of an applicable Virtual System Virtual Device on a VSX Gateway or VSX Cluster Member that implements the functionality of a Security Gateway. Acronym: VS..In Gaia Clish The name of the default command line shell in Check Point Gaia operating system. This is a restricted shell (role-based administration controls the number of commands available in the shell)., run: set virtual-system <VSID>In the Expert mode, run: vsenv <VSID>
In a Cluster Two or more Security Gateways that work together in a redundant configuration - High Availability, or Load Sharing., you must configure all the Cluster Members in the same way.
This allow-list overrides entries in the blacklist.

Before you use a 3rd-party or automatic blacklists, add trusted networks and hosts to the allow-list to avoid outages.
This allow-list unblocks IP Options and IP fragments from trusted sources when you explicitly configure one these SecureXL features:
- --enable-drop-opts
- --enable-drop-frags
See the fwaccel dos config command.

Notes:

To allow-list the Rate Limiting policy, refer to the bypass action of the fw samp command.

For example, fw samp -a b ...

For more information about the fw sam_policy command, see the R81.10 Performance Tuning Administration Guide - Chapter SecureXL Commands and Debug - Section fw sam_policy.
This command is similar to the "fwaccel dos pbox allow" command (see fwaccel dos pbox).
Also, see the fwaccel synatk allow command.

Syntax for IPv4

fwaccel dos allow

-a <IPv4 Address>[/<Subnet Prefix>]

-d <IPv4 Address>[/<Subnet Prefix>]

-F

-l /<Path>/<Name of File>

-L

-s

Parameters

Parameter	Description
No Parameters	Shows the applicable built-in usage.
`-a <IPv4 Address>[/<Subnet Prefix>]`	Adds the specified IP address to the Penalty Box allow-list. `<IPv4 Address>` Can be an IPv4 address of a network or a host. `<Subnet Prefix>` Must specify the length of the subnet mask in the format `/<bits>`. Optional for a host IPv4 address. Mandatory for a network IPv4 address. Range - from /1 to /32. Important - If you do not specify the subnet prefix explicitly, this command uses the subnet prefix /32. Examples: For a host: `192.168.20.30` `192.168.20.30/32` For a network: `192.168.20.0/24`
`-d <IPv4 Address>[/<Subnet Prefix>]`	Removes the specified IPv4 address from the Penalty Box allow-list. `<IPv4 Address>` Can be an IPv4 address of a network or a host. `<Subnet Prefix>` Optional. Must specify the length of the subnet mask in the format `/<bits>`. Optional for a host IPv4 address. Mandatory for a network IPv4 address. Range - from /1 to /32. Important - If you do not specify the subnet prefix explicitly, this command uses the subnet prefix /32.
`-F`	Removes (flushes) all entries from the Penalty Box allow-list.
`-l /<Path>/<Name of File>`	Loads the Penalty Box allow-list entries from the specified plain-text file. Note - To replace the current allow-list with the contents of a new file, use both the "`-F`" and "`-l`" parameters on the same command line. Important: You must manually create and configure this file with the `touch` or `vi` command. You must assign at least the read permission to this file with the `chmod +x` command. Each entry in this file must be on a separate line. Each entry in this file must be in this format: `<IPv4 Address>[/<Subnet Prefix>]` SecureXL ignores empty lines and lines that start with the # character in this file.
`-L`	Loads the Penalty Box allow-list entries from the plain-text file with a predefined name: `$FWDIR/conf/pbox-allow-list-v4.conf` Security Gateway Dedicated Check Point server that runs Check Point software to inspect traffic and enforce Security Policies for connected network resources. automatically runs this command "`fwaccel dos pbox allow -L`" during each boot. Note - To replace the current allow-list with the contents of a new file, use both the "`-F`" and "`-L`" parameters on the same command line. Important: This file does not exist by default. You must manually create and configure this file with the `touch` or `vi` command. You must assign at least the read permission to this file with the `chmod +x` command. Each entry in this file must be on a separate line. Each entry in this file must be in this format: `<IPv4 Address>[/<Subnet Prefix>]` SecureXL ignores empty lines and lines that start with the # character in this file.
`-s`	Shows the current Penalty Box allow-list entries.

Example 1 - Adding a host IP address without optional subnet prefix

[Expert@MyGW:0]# fwaccel dos allow -a 192.168.20.40
[Expert@MyGW:0]#
[Expert@MyGW:0]# fwaccel dos allow -s
192.168.20.40/32
[Expert@MyGW:0]#
[Expert@MyGW:0]# fwaccel dos allow -F
[Expert@MyGW:0]# fwaccel dos allow -s
[Expert@MyGW:0]#

Example 2 - Adding a host IP address with optional subnet prefix

[Expert@MyGW:0]# fwaccel dos allow -a 192.168.20.40/32
[Expert@MyGW:0]#
[Expert@MyGW:0]# fwaccel dos allow -s
192.168.20.40/32
[Expert@MyGW:0]#
[Expert@MyGW:0]# fwaccel dos allow -F
[Expert@MyGW:0]# fwaccel dos allow -s
[Expert@MyGW:0]#

Example 3 - Adding a network IP address with mandatory subnet prefix

[Expert@MyGW:0]# fwaccel dos allow -a 192.168.20.0/24
[Expert@MyGW:0]#
[Expert@MyGW:0]# fwaccel dos allow -s
192.168.20.0/24
[Expert@MyGW:0]#
[Expert@MyGW:0]# fwaccel dos allow -F
[Expert@MyGW:0]# fwaccel dos allow -s
[Expert@MyGW:0]#

Example 4 - Deleting an entry

[Expert@MyGW:0]# fwaccel dos allow -a 192.168.20.40/32
[Expert@MyGW:0]#
[Expert@MyGW:0]# fwaccel dos allow -a 192.168.20.70/32
[Expert@MyGW:0]#
[Expert@MyGW:0]# fwaccel dos allow -s
192.168.20.40/32
192.168.20.70/32
[Expert@MyGW:0]# fwaccel dos allow -d 192.168.20.70/32
[Expert@MyGW:0]#
[Expert@MyGW:0]# fwaccel dos allow -s
192.168.20.40/32
[Expert@MyGW:0]#