Cisco 2911 Configuration Guide

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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Configuring Identity Features on Layer 3 Interface
Flexible Authentication
MaxReq = 2
TxPeriod = 30
Flexible Authentication
Flexible Authentication sequencing allows a user to enable all or some authentication methods on a
router port and specify the order in which the methods should be executed.
Configuring Flexible Authentication
For more information about configuring of Flexible Authentication, see:
http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/identity-based-networking-servic
e/application_note_c27-573287.html
Host mode
Only single-host mode is supported for the Identity features on the Onboard Gigabit Ethernet Layer 3
ports. In single-host mode, only one client can be connected to the IEEE 802.1X-enabled router port.
The router detects the client by sending an EAPol frame when the port link state changes to up state. If
a client leaves or is replaced with another client, the router changes the port link state to down, and the
port returns to the unauthorized state.
Open Access
The Open Access feature allows clients or devices to gain network access before authentication is
performed. This is primarily required for the Preboot eXecution Environment (PXE) scenario where a
device is required to access the network before PXE times out and downloads a bootable image, which
contains a supplicant.
Configuring Open Access
Perform these steps to configure Open Access.
SUMMARY STEPS
1. enable
2. configure terminal
3. interface gigabitethernet slot / port
4. authentication open
5. end

Cisco 2911 Specifications

General

Ethernet LAN	Yes
Cabling technology	10/100/1000Base-T(X)
Networking standards	IEEE 802.1Q, IEEE 802.1ag, IEEE 802.3, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3ah, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet interface type	Gigabit Ethernet
DHCP client	-
Routing protocols	BGP, EIGRP, OSPF
Supported protocols	IPv4, IPv6, IS-IS, IGMPv3, PIM SM, SSM, DVMRP, IPSec, GRE, BVD, MPLS, L2TPv3, PPP, MLPPP, MLFR, HDLC, RS-232, RS-449, X.21, V.35, EIA-530, PPPoE, ATM
USB version	2.0
RS-232 ports	1
Expansion slots	4 x EHWIC 2 x DSP 1 x ISM
USB ports quantity	2
Ethernet LAN (RJ-45) ports	3
Firewall security	Cisco IOS
Input current	2.2 A
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	47 - 63 Hz
Power consumption (typical)	50 W
Product color	Black
Rack capacity	2U
Operating altitude	0 - 4000 m
Non-operating altitude	0 - 4570 m
Storage temperature (T-T)	-40 - 80 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	5 - 85 %
Safety	UL 60950-1, CAN/CSA C22.2 No. 60950-1, EN 60950-1, AS/NZS 60950-1, IEC 60950-1
Electromagnetic compatibility	47 CFR, ICES-003, EN55022, CISPR22, AS/NZS 3548, VCCI V-3, EN 300-386, EN 61000, EN 55024, CISPR 24EN50082-1

Weight and Dimensions

Depth	304.8 mm
Width	438.2 mm
Height	88.9 mm
Weight	8200 g