Home > Ask the Networking Experts > Routing and switching with Sudhanshu Gupta Questions & Answers > Why can I only get DHCP data from the FastEthernet interface and not the Ethernet interface with my Cisco 1760?
Ask The Networking Expert: Questions & Answers
EMAIL THIS

Why can I only get DHCP data from the FastEthernet interface and not the Ethernet interface with my Cisco 1760?

Sudhanshu Gupta EXPERT RESPONSE FROM: Sudhanshu Gupta

Pose a Question
Other Networking Categories
Meet all Networking Experts
Become an Expert for this site


Digg This!    StumbleUpon Toolbar StumbleUpon    Bookmark with Delicious Del.icio.us   


>
QUESTION POSED ON: 19 July 2004
Its been a while since I configured a Cisco router. We have built a lab in the office to test several products, one which includes a Cisco router. We are testing a 1760 out of the box and want basic functions. I installed the router and performed a no shutdown for both interfaces (FastEthernet0/0 and Ethernet0/0). I turned DHCP for both interfaces, but I can only get DHCP data from the FastEthernet interface and not the Ethernet interface. Please tell me what I need to do to get this problem fixed.

>
EXPERT RESPONSE
From your question, I am assuming that you want to get a DHCP assigned address to the interfaces. For that, 'IP address DHCP' is sufficient. If the DHCP server is on some other segment, then you need to give "IP helper-address dhcp_server_address" on the interfaces also. But if you want the router to act as a DHCP server, then here is a working configuration, which you can modify:

ip dhcp excluded-address 192.168.1.100 192.168.1.103
ip dhcp excluded-address 192.168.2.100 192.168.2.103
!
ip dhcp pool 1
network 192.168.0.0 /16
domain-name test.com
dns-server 192.168.1.102 192.168.2.102
default-router 192.168.1.100 192.168.1.101
netbios-name-server 192.168.1.103 192.168.2.103
netbios-node-type h-node
lease 30
!


Digg This!    StumbleUpon Toolbar StumbleUpon    Bookmark with Delicious Del.icio.us   


RELATED CONTENT
Router and Switch Management
How can I implement MAC address binding between switches?
How many more users will 802.11n wireless access points support?
How to connect wireless networks for printing capabilities
How can I prevent collisions on my network?
How to upgrade an Input/Output Supervisor (IOS) router
Inter-VLAN routing with a LAN and WAN on a single router
Troubleshooting IP Routing -- 'CCNA Official Exam Certification Library, 3rd Edition,' Chapter 7
How can I load balance between DSLs and LLs?
How can I configure 10 VLANs with 5 unmanaged switches?
Cisco's ISR inches the company toward openness

Routing and switching with Sudhanshu Gupta
What does a subnet do?
How to set up a VLAN on multiple switches
Can a Layer 3 switch replace a router for WAN connections?
How can I implement MAC address binding between switches?
How can I use a Layer 3 switch for voice routing?
How to upgrade an Input/Output Supervisor (IOS) router
Inter-VLAN routing with a LAN and WAN on a single router
What do routers use MAC addresses for?
Does each routing protocol have a different routing table?
How can I load balance between DSLs and LLs?

Ethernet
10 Gigabit Ethernet driving a wave of innovation in network switching
Brocade's Foundry deal boosts its data center play, but Cisco is ready
What makes a WAN different from a LAN and MAN?
IEEE P802.3az Energy Efficient Ethernet: Small network power savings add up
What's the Ethernet packet collision rate in Windows OS?
Green networking: Energy efficient upgrades can cut costs
Can 802.11 protocols be used with GPRS connectivity?
How does asynchronous transfer mode differ from existing network technologies?
Frame relay, ATM, and Gigabit Ethernet pros and cons
Gigabit Ethernet and 10 Gigabit Ethernet: Technology overview
Ethernet Research

RELATED GLOSSARY TERMS
Terms from Whatis.com − the technology online dictionary
32-bit IP addressing  (SearchNetworking.com)
autotrunking  (SearchNetworking.com)
delay-tolerant network  (SearchNetworking.com)
Internet Routing in Space (IRIS)  (SearchNetworking.com)
logical router  (SearchNetworking.com)
routing table  (SearchNetworking.com)
subnet  (SearchNetworking.com)
subnet mask  (SearchNetworking.com)
virtual routing and forwarding  (SearchNetworking.com)
weighted fair queueing  (SearchNetworking.com)

RELATED RESOURCES
2020software.com, trial software downloads for accounting software, ERP software, CRM software and business software systems
Search Bitpipe.com for the latest white papers and business webcasts
Whatis.com, the online computer dictionary



Search and Browse the Expert Answer Center
Search and browse more than 25,000 question and answer pairs from more than 250 TechTarget industry experts.
Browse our Expert Advice



Expert networking advice and tips for IT professionals
HomeNewsTopicsITKnowledge ExchangeTipsAsk the ExpertsMultimediaWhite PapersNetworking Product Trials
About Us  |  Contact Us  |  For Advertisers  |  For Business Partners  |  Site Index  |  RSS
SEARCH 
TechTarget provides enterprise IT professionals with the information they need to perform their jobs - from developing strategy, to making cost-effective IT purchase decisions and managing their organizations' IT projects - with its network of technology-specific Web sites, events and magazines.

TechTarget Corporate Web Site  |  Media Kits  |  Reprints  |  Site Map




All Rights Reserved, Copyright 2000 - 2008, TechTarget | Read our Privacy Policy
  TechTarget - The IT Media ROI Experts