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| Manufacturer | Cisco |
| Manufacturer Part # | C881SRSTW-GN-A-K9 |
| Cost Central Item # | 10117572 |
| Product Description | Cisco 881 SRST Ethernet Security Router - Wireless router + 4-port switch - VoIP phone adapter - Ethernet, Fast Ethernet, 802.11b, 802.11g, 802.11n (draft 2.0) - Cisco IOS Advanced IP services - external |
| Device Type | Wireless router + 4-port switch (integrated) |
| Form Factor | External |
| Approximate Dimensions (WxDxH) | 12.8 in x 10.4 in x 1.7 in |
| RAM | 512 MB (installed) / 768 MB (max) - DDR2 SDRAM |
| Flash Memory | 256 MB |
| Frequency Band | 2.4 GHz |
| Routing Protocol | RIP-1, RIP-2, HSRP, VRRP, GRE |
| Data Link Protocol | Ethernet, Fast Ethernet, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n (draft 2.0) |
| Network / Transport Protocol | L2TP, IPSec |
| Remote Management Protocol | Telnet, SNMP 3, HTTP, HTTPS, SSH |
| VoIP Functionality | VoIP phone adapter |
| VoIP Protocols | MGCP, SCCP, SIP, H.323 v3, H.323 v4, H.323 v1, H.323 v2 |
| Telephony Interfaces | 1 line (FXO), 4 phone (FXS) |
| Features | Cisco IOS Advanced IP services , auto-sensing per device, NAT support, VLAN support, auto-uplink (auto MDI/MDI-X), Stateful Packet Inspection (SPI), MAC address filtering, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Fair Queuing (WFQ), Access Control List (ACL) support, Quality of Service (QoS), DHCP server, DNS proxy |
| Compliant Standards | IEEE 802.1D, IEEE 802.1Q, IEEE 802.11b, IEEE 802.11g, Wi-Fi CERTIFIED, IEEE 802.11n (draft 2.0) |
| Power | AC 120/230 V ( 50/60 Hz ) |