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 Administering the Wireless Device
Configuring the Access Point to Provide DHCP Service
To configure an access point to provide DHCP service and to specify a default router, follow these steps,
beginning in privileged EXEC mode.
SUMMARY STEPS
1. configure terminal
2. ip dhcp excluded-address low_address [high_address]
3. ip dhcp pool pool_name
4. network subnet_number [mask | prefix-length]
5. lease {days [hours] [minutes] | infinite}
6. default-router address [address2 ... address 8]
7. end
8. show running-config
9. copy running-config startup-config
DETAILED STEPS
Command Purpose
Step 1
configure terminal Enters global configuration mode.
Step 2
ip dhcp excluded-address low_address
[high_address]
Excludes the wireless device IP address from the range of addresses that
the wireless device assigns. Enter the IP address in four groups of
characters, such as 10.91.6.158.
The wireless device assumes that all IP addresses in a DHCP address pool
subnet are available for assigning to DHCP clients. You must specify the
IP addresses that the DHCP server should not assign to clients.
(Optional) To enter a range of excluded addresses, enter the address at the
low end of the range, followed by the address at the high end of the range.
Step 3
ip dhcp pool pool_name Creates a name for the pool of IP addresses that the wireless device
assigns in response to DHCP requests, and enters DHCP configuration
mode.
Step 4
network subnet_number
[mask | prefix-length]
Assigns the subnet number for the address pool. The wireless device
assigns IP addresses within this subnet.
(Optional) Assigns a subnet mask for the address pool, or specifies the
number of bits that compose the address prefix. The prefix is an
alternative way of assigning the network mask. The prefix length must be
preceded by a forward slash (/).
Step 5
lease {days [hours] [minutes] |
infinite}
Configures the duration of the lease for IP addresses assigned by the
wireless device.
• days—configure the lease duration in number of days
• (optional) hours—configure the lease duration in number of hours
• (optional) minutes—configure the lease duration in number of
minutes
• infinite—set the lease duration to infinite

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