Thông số kỹ thuật Routers Cisco 881-K9
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | CISCO881-K9 |
| Product Type | Router – 4-port switch (integrated) |
| Form Factor | Desktop |
| Connectivity Technology | Wired |
| Data Link Protocol | Ethernet, Fast Ethernet |
| Capacity | IPSec VPN tunnels : 20 |
| Network / Transport Protocol | L2TP, IPSec, FTP, DHCP, DNS, L2TPv3, DDNS |
| Routing Protocol | OSPF, RIP-1, RIP-2, BGP, EIGRP, HSRP, VRRP, NHRP, PIM-SM, GRE |
| Remote Management Protocol | Telnet, SNMP 3, HTTP, HTTPS, SSH |
| Encryption Algorithm | LEAP, DES, Triple DES, SSL, PEAP, TKIP, PKI, 128-bit AES, 192-bit AES, 256-bit AES |
| Authentication Method | RADIUS, TACACS+ |
| Compliant Standards | IEEE 802.1D, IEEE 802.1Q, IEEE 802.1x |
| DRAM Memory | 256 MB (installed) / 768 MB (max) |
| Flash Memory | 128 MB |
| LED Status Lights Indicators | Port status, power |
| Router Interfaces | LAN : 4 x 10Base-T/100Base-TX – RJ-45 Management : 1 x console – RJ-45 WAN : 1 x 10Base-T/100Base-TX – RJ-45 USB : 1 x 4 PIN USB Type A |
| Power Device | Power adapter – external – 60 Watt |
| Voltage Required | AC 120/230 V ( 50/60 Hz ) |
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