how to configure intervlan routing on layer 3 switches - cisco systems

8/3/2019 How to Configure InterVLAN Routing on Layer 3 Switches - Cisco Systems

1/5

How To Configure InterVLAN Routing on Layer 3 Switches - Cisco Systems

Layer-Three Switching and Forwarding

How To Configure InterVLAN Routing on Layer 3 Switches HOMEr SUPPORT

TECHNOLOGY SUPPORT

LAN SWITCHING

LAYER-THREE SWITCHING AND FORWARDING

CONFIGURE

CONFIGURATION EXAMPLES AND

TECHNOTES

How To Configure

InterVLAN Routing on

Layer 3 Switches

Feedback: Help us helpyou

Please rate this document.

Excellent

Good

Average

Fair

Poor

This document solved myproblem.

Yes

No

JustBrowsing

Suggestions to improvethis document.

(512 character limit)

If you have provided asuggestion, please enteryour full name and e-mailaddress. This informationis optional and allows usto contact you ifnecessary.

Name:

E-mail:

Document ID: 41860

ContentsIntroduction

Prerequisites

Requirements

Components Used

Conventions

Configure InterVLAN Routing

Task

Step-by-Step InstructionsVerify

Troubleshoot

Troubleshooting Procedure

Cisco Support Community - Featured Conversations

Related Information

Introduction

VLANs divide broadcast domains in a LAN environment.Whenever hosts in one VLAN need to communicate with hosts inanother VLAN, the traffic must be routed between them. This isknown as inter-VLAN routing. On Catalyst switches it isaccomplished by creating Layer 3 interfaces (Switch virtualinterfaces (SVI) ). This document provides the configuration andtroubleshooting steps applicable to this capability.

Note: This document uses a Catalyst 3550 as an example.However, the concepts can also be applied to other Layer 3switches that run Cisco IOS (for example, Catalyst 3560, 3750,Catalyst 4500/4000 Series with Sup II+ or later, or Catalyst6500/6000 Series that run Cisco IOS System software).

Prerequisites

Requirements

Catalyst switch models 3560, 3750, Catalyst 4500/4000 Serieswith Sup II+ or later, or Catalyst 6500/6000 Series that run CiscoIOS system software support basic InterVLAN routing features inall their supported software versions. Before you attempt thisconfiguration on a 3550 series switch, ensure that you meet thesprerequisites:

InterVLAN routing on the Catalyst 3550 has certainsoftware requirements to support interVLAN routing on theswitch. See this table to determine whether your switch ca

Image Type and Version InterVLAN Ro

Enhanced Multilayer Image (EMI) - AllVersions

Yes

Standard Multilayer Image (SMI) - priorto Cisco IOS Software Release12.1(11)EA1

No

Standard Multilayer Image (SMI) - CiscoIOS Software Release 12.1(11)EA1 andlater

Yes

For more information on the differences between SMI and

Catalyst 3550 Series Switches Using the Command Line I

to upgrade the IOS code to a version that supports interVL

This document assumes that Layer 2 has been configuredto the 3550 communicate with one another. If you need infand trunking on the 3550, refer to Creating Ethernet VLAN

Software Configuration Guide for the specific IOS version

Components Used

The information in this document is based on these software and

Catalyst 3550-48 that runs Cisco IOS Software Release 12

The information presented in this document was created from dethe devices used in this document started with a cleared (default)network, ensure that you understand the potential impact of any

Conventions

For more information on document conventions, refer to the Cisc

Configure InterVLAN Routing

Task

In this section, you are presented with the information to configur

http://www.cisco.com/en/US/tech/tk389/tk815/technologies_configuration_example09186a008019e74e.shtml (1 of 5) [1/5/2012 2:01:17 PM]

Cisco.com

Worldwide

Home

Worldwide [change]

Log In Account Register My

CiscoProducts& Services

SupportHow

toBuy

Training& Events

Partners

u m
http://www.cisco.com/en/US/hmpgs/index.htmlhttp://www.cisco.com/en/US/support/index.htmlhttp://www.cisco.com/cisco/web/psa/configure.html?mode=techhttp://www.cisco.com/cisco/web/psa/configure.html?mode=tech&level0=268435696http://www.cisco.com/en/US/tech/tk389/tk815/tsd_technology_support_protocol_home.htmlhttp://www.cisco.com/en/US/tech/tk389/tk815/tsd_technology_support_configure_guide.htmlhttp://www.cisco.com/en/US/tech/tk389/tk815/tech_configuration_examples_list.htmlhttp://www.cisco.com/en/US/tech/tk389/tk815/tech_configuration_examples_list.htmlhttp://www.cisco.com/en/US/products/hw/switches/ps646/products_configuration_example09186a0080169623.shtmlhttp://www.cisco.com/en/US/tech/tk389/tk689/technologies_configuration_example09186a008009478e.shtmlhttp://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.2_25_se/configuration/guide/3550scg.htmlhttp://www.cisco.com/en/US/tech/tk801/tk36/technologies_tech_note09186a0080121ac5.shtmlhttp://www.cisco.com/en/US/hmpgs/index.htmlhttp://cisco.com/en/US/swassets/sw274/sitewide_country_language_selector.htmlhttp://www.cisco.com/cgi-bin/loginhttp://www.cisco.com/en/US/hmpgs/index.htmlhttp://www.cisco.com/web/siteassets/account/index.htmlhttp://www.cisco.com/en/US/hmpgs/index.htmlhttp://cisco.com/en/US/swassets/sw274/sitewide_country_language_selector.htmlhttp://www.cisco.com/cgi-bin/loginhttp://www.cisco.com/web/siteassets/account/index.htmlhttp://tools.cisco.com/RPF/register/register.dohttp://www.cisco.com/cisco/psn/web/workspacehttp://www.cisco.com/cisco/psn/web/workspacehttp://www.cisco.com/cisco/web/support/index.htmlhttp://www.cisco.com/cisco/web/support/index.htmlhttp://www.cisco.com/en/US/products/index.htmlhttp://www.cisco.com/en/US/products/index.htmlhttp://www.cisco.com/cisco/web/support/index.htmlhttp://www.cisco.com/web/ordering/root/index.htmlhttp://www.cisco.com/web/ordering/root/index.htmlhttp://www.cisco.com/web/ordering/root/index.htmlhttp://www.cisco.com/en/US/learning/index.htmlhttp://www.cisco.com/en/US/learning/index.htmlhttp://www.cisco.com/en/US/partners/index.htmlhttp://www.cisco.com/en/US/partners/index.htmlhttp://www.cisco.com/en/US/learning/index.htmlhttp://www.cisco.com/en/US/learning/index.htmlhttp://www.cisco.com/web/ordering/root/index.htmlhttp://www.cisco.com/web/ordering/root/index.htmlhttp://www.cisco.com/web/ordering/root/index.htmlhttp://www.cisco.com/cisco/web/support/index.htmlhttp://www.cisco.com/en/US/products/index.htmlhttp://www.cisco.com/en/US/products/index.htmlhttp://www.cisco.com/cisco/psn/web/workspacehttp://www.cisco.com/cisco/psn/web/workspacehttp://tools.cisco.com/RPF/register/register.dohttp://www.cisco.com/web/siteassets/account/index.htmlhttp://www.cisco.com/cgi-bin/loginhttp://cisco.com/en/US/swassets/sw274/sitewide_country_language_selector.htmlhttp://www.cisco.com/en/US/hmpgs/index.htmlhttp://www.cisco.com/en/US/hmpgs/index.htmlhttp://www.cisco.com/en/US/hmpgs/index.htmlhttp://www.cisco.com/en/US/tech/tk801/tk36/technologies_tech_note09186a0080121ac5.shtmlhttp://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.2_25_se/configuration/guide/3550scg.htmlhttp://www.cisco.com/en/US/tech/tk389/tk689/technologies_configuration_example09186a008009478e.shtmlhttp://www.cisco.com/en/US/products/hw/switches/ps646/products_configuration_example09186a0080169623.shtmlhttp://www.cisco.com/en/US/tech/tk389/tk815/tech_configuration_examples_list.htmlhttp://www.cisco.com/en/US/tech/tk389/tk815/tech_configuration_examples_list.htmlhttp://www.cisco.com/en/US/tech/tk389/tk815/tsd_technology_support_configure_guide.htmlhttp://www.cisco.com/en/US/tech/tk389/tk815/tsd_technology_support_protocol_home.htmlhttp://www.cisco.com/cisco/web/psa/configure.html?mode=tech&level0=268435696http://www.cisco.com/cisco/web/psa/configure.html?mode=techhttp://www.cisco.com/en/US/support/index.htmlhttp://www.cisco.com/en/US/hmpgs/index.html


2/5


This logical diagram explains a simple interVLAN routing scenaria multi-switch environment by first configuring and testing inter-sbefore configuring the routing capability. For such a scenario thatConfiguring InterVLAN Routing with Catalyst 3550 Series Switch

Step-by-Step Instructions

Complete these steps to configure a switch to perform interVLAN

1. E nable routing on the switch by using the ip routingcom

step ensures that it is activated.

Switch(config)# ip routing

Note: If the switch does not accept the ip routing commaSoftware Release12.1(11)EA1 or later, or an EMI image, a

for more information.

Tip: Check the show running-configuration . Verify whet

enabled, appears towards the top of the output.

hostname Switch

!

!

ip subnet-zero

ip routing!

vtp domain Cisco

vtp mode transparent

2. Make note of the VLANs that you want to route between. IVLANs 2, 3 and 10.

3. Use the show vlan command to verify that the VLANs exi

on the switch. This is an example of adding VLANs 2, 3, a

Switch#vlan databaseSwitch(vlan)#vlan 2

VLAN 2 added:

Name: VLAN0002

Switch(vlan)#vlan 3

VLAN 3 added:

Name: VLAN0003

Switch(vlan)#vlan 10

VLAN 10 added:

Name: VLAN0010

Switch(vlan)#exit

APPLY completed.

Exiting....

Tip: You can use VLAN Trunking Protocol (VTP) to propagto Understanding and Configuring VLAN Trunk Protocol (V

4. Determine the IP addresses you want to assign to the VLAto route between the VLANs, the VLAN interfaces must bereceives a packet destined for another subnet/VLAN, the sto forward the packet. The packet is then passed to the VL

the port where the end device is attached.

5. Co nfigure the VLAN interfaces with the IP address identifie

Switch#configure terminal

Enter configuration commands, o

http://www.cisco.com/en/US/tech/tk389/tk815/technologies_configuration_example09186a008015f17a.shtmlhttp://www.cisco.com/en/US/docs/ios/12_1/iproute/command/reference/1rdipadr.html#wp1020435http://www.cisco.com/en/US/docs/ios/12_1/iproute/command/reference/1rdipadr.html#wp1020435http://www.cisco.com/en/US/docs/ios/12_1/configfun/command/reference/frd2002.html#wp1019218http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.2_25_sec/command/reference/cli2.html#wp3428485http://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080094c52.shtmlhttp://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080094c52.shtmlhttp://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.2_25_sec/command/reference/cli2.html#wp3428485http://www.cisco.com/en/US/docs/ios/12_1/configfun/command/reference/frd2002.html#wp1019218http://www.cisco.com/en/US/docs/ios/12_1/iproute/command/reference/1rdipadr.html#wp1020435http://www.cisco.com/en/US/tech/tk389/tk815/technologies_configuration_example09186a008015f17a.shtml


3/5


Switch(config)# interface Vlan2

Switch(config-if)# ip address 10

Switch(config-if)# no shutdown

Repeat this process for all VLANs identified in step 1.

6. Co nfigure the interface to the default router. In this scenari

Switch(config)# interface FastEt

Switch(config-if)# no switchport

Switch(config-if)# ip address 20

Switch(config-if)# no shutdown

Theno switchport command makes the interface Layer 3

the default router.

Note: This step can be omitted if the switch reaches the dIP address for that VLAN interface.

7. Co nfigure the default route for the switch.

Switch(config)# ip route 0.0.0.0

From the diagram in the Tasksection, note that the IP add

switch receives a packet for a network not in the routing tafurther processing. From the switch, verify that you can pin

Note: The ip default-gateway command is used to specifenabled. However, in this case, routing is enabled (from stis unnecessary.

8. Co nfigure your end devices to use the respective CatalystFor example, devices in VLAN 2 should use the interfacethe appropriate client configuration guide for more informat

9. (Optional) When you implement Inter-VLAN routing, you cto the Isolation Between Two Layer 3 VLANssection of Cr

more information.

Verify

This section provides the information to confirm that your configu

Certain show commands are supported by the Output Interprete

you to view an analysis of show command output.

show ip route - Provides a snapshot of the routing table e

Cat3550#show ip route

Codes: C - connected, S - stati

- BGP

D - EIGRP, EX - EIGRP ex

area

N1 - OSPF NSSA external

2

E1 - OSPF external type

i - IS-IS, su - IS-IS su

IS level-2,

ia - IS-IS inter area, *

static route,

o - ODR, P - periodic do

Gateway of last resort is 200.1

200.1.1.0/30 is subnetted,

C 200.1.1.0 is directly c

10.0.0.0/24 is subnetted,

C 10.1.10.0 is directly c

C 10.1.3.0 is directly co

C 10.1.2.0 is directly co

S* 0.0.0.0/0 [1/0] via 200.1.

Note that the routing table has an entry for each VLAN intecan communicate with devices in VLAN 10, VLAN 2 and vi200.1.1.2 allows the switch to forward traffic to the gatewa

show ip interface brief- Lists a brief summary of an interf

used to verify that the VLAN interfaces and ports on the sw

Troubleshoot

This section provides the information used to troubleshoot your c

Troubleshooting Procedure

Here is troubleshooting information relevant to this configuration.your configuration.

1. Iss ue Internet Control Message Protocol (ICMP) pings in o

r If you are not able to ping between two devices on tand destination ports have devices connected to the

http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.1_8_ea1/command/reference/cli2.html#wp2422588http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.1_8_ea1/command/reference/cli2.html#wp2422588http://www.cisco.com/en/US/tech/tk389/tk689/technologies_configuration_example09186a008009478e.shtml#isolayer3http://www.cisco.com/en/US/tech/tk389/tk689/technologies_configuration_example09186a008009478e.shtml#isolayer3http://www.cisco.com/en/US/tech/tk389/tk689/technologies_configuration_example09186a008009478e.shtmlhttps://www.cisco.com/cgi-bin/Support/OutputInterpreter/home.plhttp://www.cisco.com/en/US/docs/ios/12_0/interface/command/reference/irshowip.html#wp1028374http://www.cisco.com/en/US/docs/ios/12_0/interface/command/reference/irshowip.html#wp1028374http://www.cisco.com/en/US/docs/ios/12_0/interface/command/reference/irshowip.html#wp1028374https://www.cisco.com/cgi-bin/Support/OutputInterpreter/home.plhttp://www.cisco.com/en/US/tech/tk389/tk689/technologies_configuration_example09186a008009478e.shtmlhttp://www.cisco.com/en/US/tech/tk389/tk689/technologies_configuration_example09186a008009478e.shtml#isolayer3http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.1_8_ea1/command/reference/cli2.html#wp2422588


4/5


information, refer to Creating Ethernet VLANs on Ca

r If you are not able to ping between two devices on ttrunking is configured properly and that the native V

2. Initiate an ICMP ping from an end device connected to theIn this example, you can use a host on VLAN 2 (10.1.2.2)able to ping the interface, verify that the host's default gateIP address and that the subnet masks match. For example,should point to Interface VLAN 2 (10.1.2.1). Also verify the

interface brief command.

r If the interface status is administratively down, issueinterface configuration mode.

r If the interface status is down/down, verify the VTPVLAN database. Check to see if a port is assigned tforwarding state.

3. Initiate a ping from an end device in one VLAN to the interfswitch routes between VLANs. In this example, ping fromor Interface VLAN 10 (10.1.10.1). If the ping fails, verify thainterfaces status is up by issuing the show ip interface bri

4. Initiate a ping from the end device in one VLAN to the endVLAN 2 should be able to ping a device on VLAN 3. If theend device on other the VLAN, verify that the default gate

5. If you are not able to reach the Internet or corporate netwothe correct IP address on the default router. Also verify thaare configured correctly.

There is no set recommended value of bandwidth on a VLAN inte

(1 Gigabit), because the route processor internal inband is only 1on the show interface vlan output is not fixed bandwidth used bbackplane. The bandwidth number can be used in order to manipload statistics, and so forth.

The Catalyst 6500 switch platform mostly forwards traffic in hardfor example, SNMP, Telnet, SSH, Routing protocols, and ARP, wwhich is done in the software.

Cisco Support Community - Featured Con

Cisco Support Community is a forum for you to ask and answer q

with your peers. Below are just some of the most recent and rele

Want to see more? Join us by clickinghere

Inter Vlanadnan.dhl5 Replies3 years, 10 months ago

Vlan Recommendationscreateshare776 Replies8 months, 3 days ago

inter-vlan routingxiaodong-lou0 Replies10 years, 2 weeks ago

Inter VLANCSCO103209531 Reply5 years, 2 weeks ago

two vlan in a switch not communicatingkarthikgopi8 Replies1 year, 9 mo

Inter-VLAN routing - Internet access...iholdings9 Replies1 year, 9 month

CAT 6509 configure intervlan routingtsrader1 Reply7 years, 4 months ag

how to configure inter vlan routingCSCO116443544 Replies2 months, 2

InterVLAN Routing Speedtiagolages1 Reply6 years, 11 months ago

How Host A talks to Host Bsmothuku5 Replies4 years, 3 months ago

ISL or 802.1q for inter VLAN routing ? fkseow3 Replies9 years, 6 months

Start A New DiscRelated Information

Configuring InterVLAN Routing with Catalyst 3550 Seri

Configuring Interface Characteristics on the 3560 Seri

Configuring Interface Characteristics on the 3750 Seri

Configuring Layer 3 Interfaces on Catalyst 6500 Switch Switches Product Support

LAN Switching Technology Support

Technical Support & Documentation - Cisco Systems

http://www.cisco.com/en/US/tech/tk389/tk689/technologies_configuration_example09186a008009478e.shtmlhttp://www.cisco.com/en/US/docs/ios/12_0/interface/command/reference/irshowip.html#wp1028374https://supportforums.cisco.com/index.jspahttps://supportforums.cisco.com/login.jspahttps://supportforums.cisco.com/login.jspahttps://supportforums.cisco.com/thread/201505?referring_site=kapihttps://supportforums.cisco.com/people/adnan.dhl?referring_site=kapihttps://supportforums.cisco.com/thread/2072479?referring_site=kapihttps://supportforums.cisco.com/people/createshare77?referring_site=kapihttps://supportforums.cisco.com/thread/10796?referring_site=kapihttps://supportforums.cisco.com/people/xiaodong-lou?referring_site=kapihttps://supportforums.cisco.com/thread/141762?referring_site=kapihttps://supportforums.cisco.com/people/CSCO10320953?referring_site=kapihttps://supportforums.cisco.com/thread/2012411?referring_site=kapihttps://supportforums.cisco.com/people/karthikgopi?referring_site=kapihttps://supportforums.cisco.com/thread/2009551?referring_site=kapihttps://supportforums.cisco.com/people/iholdings?referring_site=kapihttps://supportforums.cisco.com/people/iholdings?referring_site=kapihttps://supportforums.cisco.com/thread/13357?referring_site=kapihttps://supportforums.cisco.com/people/tsrader?referring_site=kapihttps://supportforums.cisco.com/thread/2110588?referring_site=kapihttps://supportforums.cisco.com/people/CSCO11644354?referring_site=kapihttps://supportforums.cisco.com/thread/17293?referring_site=kapihttps://supportforums.cisco.com/people/tiagolages?referring_site=kapihttps://supportforums.cisco.com/thread/148126?referring_site=kapihttps://supportforums.cisco.com/people/smothuku?referring_site=kapihttps://supportforums.cisco.com/thread/27783?referring_site=kapihttps://supportforums.cisco.com/people/fkseow?referring_site=kapihttp://www.cisco.com/en/US/tech/tk389/tk815/technologies_configuration_example09186a008015f17a.shtml?referring_site=bodynavhttp://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_25_se/configuration/guide/swint.html?referring_site=bodynavhttp://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_25_se/configuration/guide/swint.html?referring_site=bodynavhttp://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/configuration/guide/layer3.html?referring_site=bodynavhttp://www.cisco.com/cisco/web/psa/default.html?mode=prod&level0=268438038&referring_site=bodynavhttp://www.cisco.com/cisco/web/psa/default.html?mode=tech&level0=268435696&referring_site=bodynavhttp://www.cisco.com/cisco/web/support/index.html?referring_site=bodynavhttp://www.cisco.com/cisco/web/support/index.html?referring_site=bodynavhttp://www.cisco.com/cisco/web/psa/default.html?mode=tech&level0=268435696&referring_site=bodynavhttp://www.cisco.com/cisco/web/psa/default.html?mode=prod&level0=268438038&referring_site=bodynavhttp://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/configuration/guide/layer3.html?referring_site=bodynavhttp://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_25_se/configuration/guide/swint.html?referring_site=bodynavhttp://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_25_se/configuration/guide/swint.html?referring_site=bodynavhttp://www.cisco.com/en/US/tech/tk389/tk815/technologies_configuration_example09186a008015f17a.shtml?referring_site=bodynavhttps://supportforums.cisco.com/people/fkseow?referring_site=kapihttps://supportforums.cisco.com/thread/27783?referring_site=kapihttps://supportforums.cisco.com/people/smothuku?referring_site=kapihttps://supportforums.cisco.com/thread/148126?referring_site=kapihttps://supportforums.cisco.com/people/tiagolages?referring_site=kapihttps://supportforums.cisco.com/thread/17293?referring_site=kapihttps://supportforums.cisco.com/people/CSCO11644354?referring_site=kapihttps://supportforums.cisco.com/thread/2110588?referring_site=kapihttps://supportforums.cisco.com/people/tsrader?referring_site=kapihttps://supportforums.cisco.com/thread/13357?referring_site=kapihttps://supportforums.cisco.com/people/iholdings?referring_site=kapihttps://supportforums.cisco.com/thread/2009551?referring_site=kapihttps://supportforums.cisco.com/people/karthikgopi?referring_site=kapihttps://supportforums.cisco.com/thread/2012411?referring_site=kapihttps://supportforums.cisco.com/people/CSCO10320953?referring_site=kapihttps://supportforums.cisco.com/thread/141762?referring_site=kapihttps://supportforums.cisco.com/people/xiaodong-lou?referring_site=kapihttps://supportforums.cisco.com/thread/10796?referring_site=kapihttps://supportforums.cisco.com/people/createshare77?referring_site=kapihttps://supportforums.cisco.com/thread/2072479?referring_site=kapihttps://supportforums.cisco.com/people/adnan.dhl?referring_site=kapihttps://supportforums.cisco.com/thread/201505?referring_site=kapihttps://supportforums.cisco.com/login.jspahttps://supportforums.cisco.com/index.jspahttp://www.cisco.com/en/US/docs/ios/12_0/interface/command/reference/irshowip.html#wp1028374http://www.cisco.com/en/US/tech/tk389/tk689/technologies_configuration_example09186a008009478e.shtml


5/5

Updated: Sep 26, 2011

Information For

Small Business

Service Provider

Executives

Home



Industries

Contacts

Contact Cisco

Find a Partner

News & Alerts

Newsroom

Blogs

Newsletters

Field Notices

Security Advisories

Technology Trends

Cloud

IPv6

Video Architecture

Virtualization Experience Infrastructure

Support

Downloads

Documentation

Communities

Developer Network

Learning Network

Support Community

About Cisco

Investor Relations

Corporate Social Responsibility

Environmental Sustainability

Human Network

Career Opportunities

Offers

Special Offers

Financing Options

Contacts

|Feedback

|

Help

|

Site

Map

|

Terms

&

Conditions

| Privacy Statement| Cookie Policy |Trademarks
http://www.cisco.com/en/US/netsol/index.htmlhttp://www.cisco.com/cisco/web/solutions/small_business/index.htmlhttp://www.cisco.com/en/US/netsol/ns341/networking_solutions_service_provider_home.htmlhttp://www.cisco.com/en/US/netsol/ns1168/index.htmlhttp://home.cisco.com/http://www.cisco.com/web/strategy/index.htmlhttp://www.cisco.com/web/siteassets/contacts/index.htmlhttp://www.cisco.com/web/siteassets/contacts/index.htmlhttp://tools.cisco.com/WWChannels/LOCATR/openBasicSearch.dohttp://newsroom.cisco.com/http://newsroom.cisco.com/http://blogs.cisco.com/http://www.cisco.com/offer/subctr/nl/190612_1http://www.cisco.com/en/US/support/tsd_products_field_notice_summary.htmlhttp://www.cisco.com/en/US/products/products_security_advisories_listing.htmlhttp://www.cisco.com/web/solutions/trends/cloud/index.htmlhttp://www.cisco.com/web/solutions/trends/ipv6/index.htmlhttp://www.cisco.com/web/solutions/trends/video/index.htmlhttp://www.cisco.com/web/solutions/trends/virtualization/index.htmlhttp://www.cisco.com/en/US/support/index.htmlhttp://www.cisco.com/cisco/software/navigator.html?i=!chhttp://www.cisco.com/cisco/web/psa/default.htmlhttp://www.cisco.com/web/communities/index.htmlhttp://developer.cisco.com/https://learningnetwork.cisco.com/index.jspa?ciscoHome=truehttps://supportforums.cisco.com/index.jspahttp://www.cisco.com/en/US/about/index.htmlhttp://investor.cisco.com/http://www.cisco.com/web/about/citizenship/index.htmlhttp://www.cisco.com/web/about/citizenship/environment/index.htmlhttp://videolounge.cisco.com/http://www.cisco.com/web/about/ac40/about_cisco_careers_home.htmlhttp://www.cisco.com/web/offers/index.htmlhttp://www.cisco.com/web/offers/index.htmlhttp://www.cisco.com/web/ordering/ciscocapital/index.htmlhttp://www.cisco.com/web/siteassets/contacts/index.htmlhttp://www.cisco.com/web/siteassets/contacts/index.htmlhttp://tools.cisco.com/cdc/feedbk/public/FeedbackAction.cdcfdbhttp://www.cisco.com/web/help/index.htmlhttp://www.cisco.com/web/help/index.htmlhttp://www.cisco.com/web/siteassets/sitemap/index.htmlhttp://www.cisco.com/web/siteassets/sitemap/index.htmlhttp://www.cisco.com/web/siteassets/legal/terms_condition.htmlhttp://www.cisco.com/web/siteassets/legal/terms_condition.htmlhttp://www.cisco.com/web/siteassets/legal/terms_condition.htmlhttp://www.cisco.com/web/siteassets/legal/privacy.htmlhttp://www.cisco.com/web/siteassets/legal/privacy.htmlhttp://www.cisco.com/web/siteassets/legal/privacy.html#cookieshttp://www.cisco.com/web/siteassets/legal/trademark.htmlhttp://www.cisco.com/web/siteassets/legal/trademark.htmlhttp://www.cisco.com/web/strategy/index.htmlhttp://www.cisco.com/web/siteassets/legal/trademark.htmlhttp://www.cisco.com/web/siteassets/legal/privacy.html#cookieshttp://www.cisco.com/web/siteassets/legal/privacy.htmlhttp://www.cisco.com/web/siteassets/legal/terms_condition.htmlhttp://www.cisco.com/web/siteassets/legal/terms_condition.htmlhttp://www.cisco.com/web/siteassets/legal/terms_condition.htmlhttp://www.cisco.com/web/siteassets/sitemap/index.htmlhttp://www.cisco.com/web/siteassets/sitemap/index.htmlhttp://www.cisco.com/web/help/index.htmlhttp://tools.cisco.com/cdc/feedbk/public/FeedbackAction.cdcfdbhttp://www.cisco.com/web/siteassets/contacts/index.htmlhttp://www.cisco.com/web/ordering/ciscocapital/index.htmlhttp://www.cisco.com/web/offers/index.htmlhttp://www.cisco.com/web/offers/index.htmlhttp://www.cisco.com/web/about/ac40/about_cisco_careers_home.htmlhttp://videolounge.cisco.com/http://www.cisco.com/web/about/citizenship/environment/index.htmlhttp://www.cisco.com/web/about/citizenship/index.htmlhttp://investor.cisco.com/http://www.cisco.com/en/US/about/index.htmlhttps://supportforums.cisco.com/index.jspahttps://learningnetwork.cisco.com/index.jspa?ciscoHome=truehttp://developer.cisco.com/http://www.cisco.com/web/communities/index.htmlhttp://www.cisco.com/cisco/web/psa/default.htmlhttp://www.cisco.com/cisco/software/navigator.html?i=!chhttp://www.cisco.com/en/US/support/index.htmlhttp://www.cisco.com/web/solutions/trends/virtualization/index.htmlhttp://www.cisco.com/web/solutions/trends/video/index.htmlhttp://www.cisco.com/web/solutions/trends/ipv6/index.htmlhttp://www.cisco.com/web/solutions/trends/cloud/index.htmlhttp://www.cisco.com/en/US/products/products_security_advisories_listing.htmlhttp://www.cisco.com/en/US/support/tsd_products_field_notice_summary.htmlhttp://www.cisco.com/offer/subctr/nl/190612_1http://blogs.cisco.com/http://newsroom.cisco.com/http://newsroom.cisco.com/http://tools.cisco.com/WWChannels/LOCATR/openBasicSearch.dohttp://www.cisco.com/web/siteassets/contacts/index.htmlhttp://www.cisco.com/web/siteassets/contacts/index.htmlhttp://home.cisco.com/http://www.cisco.com/en/US/netsol/ns1168/index.htmlhttp://www.cisco.com/en/US/netsol/ns341/networking_solutions_service_provider_home.htmlhttp://www.cisco.com/cisco/web/solutions/small_business/index.htmlhttp://www.cisco.com/en/US/netsol/index.html

how to configure intervlan routing on layer 3 switches - cisco systems

Documents