IPSec Line Module w/encryption. Includes a license for 2,500 IPSec tunnels with JUNOSe 4.0, 4.1 and 5.0 and a license for 10 IPSec or Secure Remote Access tunnels with JUNOSe 5.1 or higher. Number of tunnels may be upgraded to a max of 5,000 IPSec and/or SRA tunnels by ordering ERX-IPSEC-LTUs or ERX-SRA-LTUs. Does not require an IOA.