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| Manufacturer | Cisco |
| Manufacturer Part # | CISCO851-K9 |
| Cost Central Item # | 10117221 |
| Product Description | Cisco 851 Integrated Services Router - Router + 4-port switch - EN, Fast EN |
| Device Type | Router + 4-port switch (integrated) |
| Form Factor | External |
| Approximate Dimensions (WxDxH) | 10.2 in x 8.5 in x 2 in |
| Approximate Weight | 2.2 lbs |
| RAM | 64 MB (installed) / 64 MB (max) |
| Flash Memory | 20 MB (installed) / 20 MB (max) |
| Routing Protocol | RIP-1, RIP-2, GRE |
| Data Link Protocol | Ethernet, Fast Ethernet |
| Network / Transport Protocol | PPTP, L2TP, IPSec, PPPoE |
| Remote Management Protocol | SNMP, RMON, Telnet, HTTP |
| Features | Firewall protection, auto-sensing per device, DHCP support, NAT support, hardware encryption, VPN support, PAT support, auto-uplink (auto MDI/MDI-X), traffic shaping, IPv6 support, Weighted Fair Queuing (WFQ), Access Control List (ACL) support |
| Compliant Standards | IEEE 802.1D, IEEE 802.1x |
| Power | AC 120/230 V ( 50/60 Hz ) |