ACL size limit

[Chris Sarginson]

Hi guys,

Is there a limit on the amount of infomation you can put as part of an 
acl?  I want to do the following:

acl ip_ssl_block_72       hdr_reg(X-Real-IP)  10.10.10.10

but keep just expanding the list of IPs in there (they are pulled from a 
backend database we have and inserted in).  I'm using the header as 
traffic is being proxied across from nginx which is answering SSL 
connections.

Chris