This is AWS WAF Classic
documentation. For more information, see AWS WAF Classic
in the developer guide. For the latest version of AWS WAF
, use the AWS WAFV2 API and see the AWS WAF Developer Guide
. With the latest version, AWS WAF has a single set of endpoints for regional and global use.
Inserts or deletes IPSetDescriptor
objects in an
. For each
object, you specify the following values:
- Whether to insert or delete the object from the array. If you want to change an
IPSetDescriptor object, you delete the existing object and add a new one.
- The IP address version,
- The IP address in CIDR notation, for example,
192.0.2.0/24 (for the range of IP addresses from
192.0.2.44/32 (for the individual IP address
AWS WAF supports IPv4 address ranges: /8 and any range between /16 through /32. AWS WAF supports IPv6 address ranges: /24, /32, /48, /56, /64, and /128. For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing
IPv6 addresses can be represented using any of the following formats:
You use an
to specify which web requests you want to allow or block based on the IP addresses that the requests originated from. For example, if you're receiving a lot of requests from one or a small number of IP addresses and you want to block the requests, you can create an
that specifies those IP addresses, and then configure AWS WAF to block the requests.
To create and configure an
, perform the following steps:
- Submit a CreateIPSet request.
- Use GetChangeToken to get the change token that you provide in the
ChangeToken parameter of an UpdateIPSet request.
- Submit an
UpdateIPSet request to specify the IP addresses that you want AWS WAF to watch for.
When you update an
, you specify the IP addresses that you want to add and/or the IP addresses that you want to delete. If you want to change an IP address, you delete the existing IP address and add the new one.
You can insert a maximum of 1000 addresses in a single request.
For more information about how to use the AWS WAF API to allow or block HTTP requests, see the AWS WAF Developer Guide