C921J-4P

Model

C921J-4P

Description

Cisco 921J Gigabit Ethernet security router with external power supply for Japan only

WAN interfaces

2 ports Gigabit Ethernet (GE)

LAN interfaces

4-port 10/100/1000-Mbps managed switch

Integrated USB 2.0

Yes

Default and maximum DRAM

Default 1 GB

Default and maximum flash memory

2 GB; not upgradable

Dimension

1.10 x 8.50 x 6.50 in. (2.80 x 21.59 x 16.51 cm) (includes rubber feet)

①

#6-32 Ground screw

⑨

GE LAN port

②

Power button

⑩

GE LAN port

③

12VDC input

⑪

GE LAN port

④

Reset button

⑫

GE WAN port

⑤

System LED

⑬

Console port

⑥

USB2.0 port

⑭

Kensington Lock

⑦

GE LAN port

⑮

VPN LED

⑧

GE LAN port

Model

C921-4P

C921J-4P

Description

Cisco 921 Gigabit Ethernet security router with internal power supply

Cisco 921J Gigabit Ethernet security router with external power supply for Japan only

WAN interfaces

1 port GE and 1 VADSL (Annex B/J)

2 ports Gigabit Ethernet (GE)

LAN interfaces

4-port GE managed switch

4-port 10/100/1000-Mbps managed switch

Integrated USB 2.0

Yes

Yes

Default and maximum DRAM

Default 1 GB

Default 1 GB

Default and maximum flash memory

2 GB; not upgradable

2 GB; not upgradable

C921J-4P Specification

Description

Cisco 921J Gigabit Ethernet security router with external power supply for Japan only

WAN interfaces

2 ports Gigabit Ethernet (GE)

LAN interfaces

4-port 10/100/1000-Mbps managed switch

Integrated USB 2.0

Yes

Cisco IOS Software

IP and IP services

●  Routing Information Protocol Versions 1 and 2 (RIPv1 and RIPv2)

●  Generic Routing Encapsulation (GRE) and multipoint GRE (MGRE)

●  Cisco Express Forwarding

●  Standard 802.1d Spanning Tree Protocol

●  Layer 2 Tunneling Protocol (L2TP)

●  L2TP Version 3 (L2TPv3)

●  Network Address Translation (NAT)

●  Dynamic Host Configuration Protocol (DHCP) server, relay, and client

●  Dynamic DNS

●  DNS Proxy

●  DNS Spoofing

●  Access Control Lists (ACLs)

●  IPv4 and IPv6 multicast

●  Open Shortest Path First (OSPF)

●  Border Gateway Protocol (BGP)

●  Performance Routing (PfR)

●  Enhanced Interior Gateway Routing Protocol (EIGRP)

●  Virtual Route Forwarding (VRF) Lite

●  Next Hop Resolution Protocol (NHRP)

●  Bidirectional Forwarding Detection (BFD)

●  Web Cache Communication Protocol (WCCP)

Switch features

●  Auto Media Device In/Media Device Cross Over (MDI-MDX)

●  25 802.1Q VLANs

●  MAC filtering

●  Four-port 802.3af and Cisco compliant PoE

●  Switched Port Analyzer (SPAN)

●  Storm control

●  Smart ports

●  Secure MAC address

●  Internet Group Management Protocol Version 3 (IGMPv3) snooping

●  802.1X

Security features

Secure connectivity:

●  Secure Sockets Layer (SSL) VPN for secure remote access

●  Hardware-accelerated DES, 3DES, AES 128, AES 192, and AES 256

●  Public-Key-Infrastructure (PKI) support

●  50 IPsec tunnels

●  Cisco Easy VPN client and server

●  NAT transparency

●  Dynamic Multipoint VPN (DMVPN)

●  Tunnel-less Group Encrypted Transport VPN (GET VPN)

●  VRF-aware IPsec

●  IPsec over IPv6

●  Adaptive control technology

●  Session Initiation Protocol (SIP) application-layer gateway

●  Cisco IOS Firewall:

◦   Zone-based policy firewall

◦   VRF-aware stateful inspection routing firewall

◦   Stateful inspection transparent firewall

●  Advanced application inspection and control

●  Secure HTTP (HTTPS), FTP, and Telnet Authentication Proxy

●  Dynamic and static port security

●  Firewall stateful failover

●  VRF-aware firewall

●  Cisco IOS Software black and white lists

●  Integrated threat control:

◦   Intrusion Prevention System (IPS)

●  Control plane policing

●  Flexible packet matching

●  Network foundation protection

Quality of Service (QoS)

●  Low-Latency Queuing (LLQ)

●  Weighted Fair Queuing (WFQ)

●  Class-Based WFQ (CBWFQ)

●  Class-Based Traffic Shaping (CBTS)

●  Class-Based Traffic Policing (CBTP)

●  Policy-Based Routing (PBR)

●  Class-Based QoS MIB

●  Class of service (CoS)-to-differentiated services code point (DSCP) mapping

●  Class-Based Weighted Random Early Detection (CBWRED)

●  Network-Based Application Recognition (NBAR)

●  Link fragmentation and interleaving (LFI)

●  Resource Reservation Protocol (RSVP)

●  Real-Time Transport Protocol (RTP) header compression (cRTP)

●  Differentiated Services (DiffServ)

●  QoS preclassify and prefragmentation

●  Hierarchical QoS (HQoS)

Management

●  Cisco Configuration Professional

●  Cisco Configuration Express

●  Cisco Configuration Engine support

●  Cisco AutoInstall

●  Cisco IP Service-Level Agreement (IP SLA)

●  Cisco IOS Embedded Event Manager (EEM)

●  CiscoWorks

●  Cisco Security Manager

●  Telnet, Simple Network Management Protocol Version 3 (SNMPv3), Secure Shell (SSH) Protocol, command-line interface (CLI), and HTTP management

●  RADIUS and TACACS+

●  Cisco Next Generation Plug-and-Play (NG PnP) Protocol

High availability

●  Virtual Router Redundancy Protocol (VRRP) (RFC 2338)

●  HSRP

●  MHSRP

Metro Ethernet

●  Ethernet OA&M

●  Ethernet Local Management Interface (E-LMI)

●  IP SLA for Ethernet

IPv6

●  IPv6 addressing architecture

●  IPv6 name resolution

●  IPv6 statistics

●  IPv6 translation: Transport packets between IPv6-only and IPv4-only endpoints (NAT-Protocol Translation)

●  Internet Control Message Protocol Version 6 (ICMPv6)

●  IPv6 DHCP

●  OSPFv3

●  BGP4+

●  IPv6 path maximum transmission unit (PMTU)

●  IPv6 neighbor discovery

●  IPv6 stateless address autoconfiguration (SLAAC)

●  IPv6 multicast routing

Application visibility and control

●  NBAR2

●  Flexible NetFlow (FNF)

●  Performance Agent

Number of recommended users

●  50

Default and maximum DRAM

●  Default 1 GB

Default and maximum flash memory

●  2 GB on all Cisco 900J Series ISR models; not upgradable

WAN

●  Refer to Table 2 for details

LAN switch

●  Refer to Table 2 for details

Separate console ports

●  RJ-45

USB 2.0

●  One USB 2.0 Type A port available

Physical dimensions and weight

Weight: 2.04 lb (0.924 kg) maximum

Product dimensions:

●  H x W x D = 1.10 x 8.50 x 6.50 in. (2.80 x 21.59 x 16.51 cm) (includes rubber feet)

External power supply

Power specifications:

●  External power supply

●  AC input voltage: Universal 100 to 240 VAC

●  Frequency: 50 to 60 Hz

●  Maximum output power: 18W

●  Output voltages: 12 VDC

Approvals and compliance

Safety:

●  IEC 60950-1, 2nd Edition with Amendment 1 and Amendment 2 with Japan national deviations

Emissions:

●  47 CFR Part 15: 2006

◦   CISPR22: 2005

◦   EN300386: V1.3.3: 2005

◦   EN55022: 2006

◦   EN61000-3-2: 2000 [+ amd 1 & 2]

◦   EN61000-3-3: 1995 [+ amd 1: 2001]

◦   ICES-003 Issue 4: 2004

◦   KN 22: 2005

●  VCCI: V-3/2006.04

Immunity:

●  CISPR24: 1997 [+ amd 1 & 2]

◦   EN300386: V1.3.3: 2005

◦   EN50082-1: 1992

◦   EN50082-1: 1997

◦   EN55024: 1998 [+ amd 1 & 2]

◦   EN61000-6-1: 2001

Environmental operating range

●  Nonoperating temperature: -40° to 158°F (-40° to 70°C)

●  Nonoperating humidity: 5% to 95% relative humidity (noncondensing)

●  Nonoperating altitude: 0 to 15,000 ft (0 to 4570 m)

●  Operating temperature: 0° to 45°C (de-rate 1°C per 1000-ft increase in altitude)

●  Operating humidity: 5% to 95% relative humidity (noncondensing)

●  Operating altitude: 0 to 10,000 ft (0 to 3000 m)