[any|hostSA|SA/prefix-length]
Syntax
[any|hostSA|SA/prefix-length]
Description
This is the first instance of IPv6 addressing in an ACE. It follows the protocol specifier and defines the source IPv6 address (SA) a packet must carry for a match with the ACE.
Options
any
Allows IPv6 packets from any IPv6 SA.
host
SASpecifies only packets having a single address as the SA. Use this criterion when you want to match only the IPv6 packets from a single SA.
SA
prefix-lengthSpecifies packets received from one or more contiguous subnets or contiguous addresses within a single subnet. The prefix length is in CIDR format and defines the number of leftmost bits to use in determining a match.
Example
Prefix-length applications:
2001:db8:0:e102::10:100/120 matches any IPv6 address in the range of 2001:db8:0:e102::10:<0100 - 01FF>
2001:db8:a0:e102::/64 matches any IPv6 address having a prefix of 2001:db8:a0:e102.
FE80::/16 matches any link-local address on an interface.