On P2P Office network Antivirus should allow user to approve or reject remote connection on intranet.
Kindly check below link and see if can be done from antivirus side to approve or reject remote connection
http://www.symantec.com/business/support/index?page=content&id=TECH42922
Environment
pcAnywhere Solution 12.5.283 with Windows hosts.
The Host Configuration policy option "Require user to approve connection" is enabled as shown here: