Cisco 4451-X Integrated Services Router (ISR) (with PVDM4-32, PVDM4-64, PVDM4-128 and PVDM4-256)

Certificate

Module description

The Cisco Integrated Services Routers (ISRs) are routing platforms that provide comprehensive security services including VPN for small businesses, enterprise small branch and teleworkers. The platforms are architected to enable the next phase of branch-office evolution, providing rich media collaboration and virtualization to the branch while offering a wide-range of connectivity options.

Security level exceptions

• Roles, Services, and Authentication: Level 3
• Design Assurance: Level 3
• Mitigation of Other Attacks: N/A

Approved algorithms

Other algorithms

DES; Diffie-Hellman (key establishment methodology provides between 112 and 150 bits of encryption strength); EC Diffie-Hellman (key establishment methodology provides between 128 and 192 bits of encryption strength); GDOI (key wrapping; key establishment methodology provides between 112 and 150 bits of encryption strength); HMAC-MD5; MD5; NDRNG; RC4; RSA (key wrapping; key establishment methodology provides between 112 and 150 bits of encryption strength)

Validation history

Status timeline

As observed by this tracker's snapshots. NIST publishes no dates for list moves; observation began 2026-08-21, so earlier changes carry no date.

• 2026-08-21: first observed by this tracker, status historical
• Validation dates on record: 2014-11-14

Source documents

• NIST certificate page
• Security policy (PDF)
• Consolidated certificate (PDF)