3925 w/ 3 onboard GE, C3900-SPE100/K9, 4 EHWIC slots, 4 DSP slots, 1 ISM slot, 2 SM slots, 256MB CF default, 1 GB DRAM default, IP Base

Cisco router security bundles deliver security features such as Cisco IOS Software-based intrusion prevention systems (IPSs), firewall, VPN, content filtering, and infrastructure security services over numerous WAN access technologies, offering high levels of performance, scalability, and availability to meet today's growing business requirements. Table 25 lists the Cisco ISR G2 security bundles for the Cisco 3900, 2900, and 1900 Series routers that come with the Security technology license activated and the advanced security features available for use. By default, these bundles ship with the universal Cisco IOS Software image that supports payload cryptography.