CISCO - 881 ETHERNET SECURITY - ROUTER - DESKTOP (C881-K9). KEY FEATURES : DEVICE TYPE : ROUTER - 4-PORT SWITCH (INTEGRATED) ENCLOSURE TYPE : DESKTOP DATA LINK PROTOCOL : ETHERNET, FAST ETHERNET CAPACITY : IPSEC VPN TUNNELS : 20 NETWORK / TRANSPORT PROTOCOL : L2TP, DHCP ROUTING PROTOCOL : RIP-1, RIP-2, HSRP, VRRP, GRE, POLICY-BASED ROUTING (PBR) REMOTE MANAGEMENT PROTOCOL : TELNET, SNMP 3, HTTP, HTTPS, SSH, CLI FEATURES : NAT SUPPORT, AUTO-UPLINK (AUTO MDI/MDI-X), MAC ADDRESS FILTERING, LOW-LATENCY QUEUING (LLQ), CLASS-BASED WEIGHTED FAIR QUEUING (CBWFQ), WEIGHTED FAIR QUEUING (WFQ), SPANNING TREE PROTOCOL (STP) SUPPORT, ACCESS CONTROL LIST (ACL) SUPPORT, QUALITY OF SERVICE (QOS), DHCP SERVER, DNS PROXY, FANLESS, DHCP RELAY, DHCP CLIENT, CLASS OF SERVICE (COS) COMPLIANT STANDARDS : IEEE 802.1D, IEEE 802.1Q POWER : AC 120/230 V ( 50/60 HZ ) CONDITION : NEW FACTORY SEALED. AVAILABILITY : IN STOCK. OUR WARRANTY : 30 DAYS.