Updated: September 24, 2019
There is no limit to number of MAC address entries for Host Checker.
Based on our internal testing, Pulse Secure recommends keeping the total number of MAC addresses under 500 entries. After exceeding 500 entries, this may impact performance when evaluating and enforcing host checker policies.
Wildcards are supported for the MAC address rules.
For example, the following entry could be used to support a larger range (00:0e:1b:*:*:*), but the wildcard cannot use to represent a single character (00:0e:1b:04:40:*9).