Cisco CISCO2821-AC-IP-RF | 2821 AC IP PoE Integrated Services Router

1. Dimensions: 43.8 cm x 43.2 cm x 4.5 cm
2. Weight: 8.2 kg
3. Power supply: AC 120/230 V (50/60 Hz)
4. Interfaces: 2 x 10/100/1000 LAN ports, 1 x console port, 2 x USB 2.0 ports, 4 x HWIC slots, 2 x AIM slots
5. Memory: 256 MB DRAM, 64 MB flash memory
6. Routing protocol: OSPF, RIP-1, RIP-2, BGP, EIGRP, HSRP, IGMP, PIM-SM, PIM-DM, GRE, MPLS
7. Network / Transport Protocol: IPSec, PPPoE, DHCP, DNS, L2TPv3, NTP, SNMP 3, SSH, SSL, TCP/IP, UDP/IP
8. Data Link Protocol: Ethernet, Fast Ethernet, Gigabit Ethernet
9. Network / Transport Protocol: IPSec, PPPoE, DHCP, DNS, L2TPv3, NTP, SNMP 3, SSH, SSL, TCP/IP, UDP/IP
10. VPN support: IPSec, GRE, L2TPv3
11. Encryption algorithm: DES, Triple DES, AES
12. Authentication method: RADIUS, TACACS+

Helpful notes:
1. The Cisco 2821 router is ideal for medium to large-sized businesses that require a high-performance network infrastructure.
2. The router supports multiple WAN technologies, making it a versatile solution for connecting to the internet or other networks.
3. With its advanced security features and support for VPNs, the Cisco 2821 router is a secure and reliable choice for businesses that need to protect their data and network.