Specification :

Integrated Services Router
Available stock used condition , 2811
2821
3560-24PS-S
3560-48PS-S
3750GT-48TS-S
SUP720-3B WS-X6748-SFP WS-X6724-SFP WS-X6548-GE-TX WS-SUP32-GE-3B WS-X6748-GE-TX CISCO2801
the 1811 For Integrated ISDN Basic Rate Interface ( BRI) , analog modem, or Ethernet backup ports for redundant WAN links and load balancing
LAN Switching with optional inline POE
with use of multiple antenna Secure wireless LAN for simultaneous 802.11a and 802.11b/ g operation

Advanced security including:
Stateful Inspection Firewall
IP Security ( IPSec) VPNs ( Triple Data Encryption Standard [ 3DES] or Advanced Encryption Standard [ AES] )
Dynamic Multipoint VPN ( DMVPN) and Easy VPN
Intrusion Prevention System ( IPS)
Antivirus support through Network Admission Control ( NAC) and enforcement of secure access policies
Secure broadband access with concurrent services for branch and small offices