Home > Articles > Certification > Cisco Certification > CCNP

CCNP SWITCH Portable Command Guide: Implementing Inter-VLAN Routing

Apr 6, 2010

📄 Contents

␡

⎙ Print

< Back Page 4 of 12 Next >

This chapter is from the book 

CCNP SWITCH Portable Command Guide

Learn More Buy

Configuration Example: Inter-VLAN Communication

Figure 4-1 shows the network topology for the configuration that follows, which shows how to configure inter-VLAN communication using commands covered in this chapter. Some commands used in this configuration are from previous chapters.

Figure 4-1 Network Topology for Inter-VLAN Communication Configuration

ISP Router

`Router>``enable`	Moves to privileged mode.
`Router>#``configure terminal`	Moves to global configuration mode.
`Router(config)#``hostname ISP`	Sets the host name.
`ISP(config)#``interface loopback 0`	Moves to interface configuration mode.
`ISP(config-if)#``description simulated address representing remote website`	Sets the locally significant interface description.
`ISP(config-if)#``ip address 198.133.219.1 255.255.255.0`	Assigns IP address and netmask.
`ISP(config-if)#``interface serial 0/0/0`	Moves to interface configuration mode.
`ISP(config-if)#``description WAN link to the Corporate Router`	Sets the locally significant interface description.
`ISP(config-if)#``ip address 192.31.7.5 255.255.255.252`	Assigns IP address and netmask.
`ISP(config-if)#``clock rate 56000`	Assigns a clock rate to the interface—DCE cable is plugged in to this interface.
`ISP(config-if)#``no shutdown`	Enables the interface.
`ISP(config-if)#``exit`	Returns to global configuration mode.
`ISP(config-if)#``router eigrp 10`	Creates Enhanced Interior Gateway Routing Protocol (EIGRP) routing process 10.
`ISP(config-router)#``network 198.133.219.0`	Advertises directly connected networks (classful address only).
`ISP(config-router)#``network 192.31.7.0`	Advertises directly connected networks (classful address only).
`ISP(config-router)#``no auto-summary`	Disables auto summarization.
`ISP(config-router)#``exit`	Returns to global configuration mode.
`ISP(config)#``exit`	Returns to privileged mode.
`ISP#``copy running-config startup-config`	Saves the configuration to NVRAM.

CORP Router

`Router>``enable`	Moves to privileged mode.
`Router>#``configure terminal`	Moves to global configuration mode.
`Router(config)#``hostname CORP`	Sets the host name.
`ISP(config)#``interface serial 0/0/0`	Moves to interface configuration mode.
`CORP(config-if)#``description link to ISP`	Sets the locally significant interface description.
`CORP(config-if)#``ip address 192.31.7.6 255.255.255.252`	Assigns IP address and netmask.
`CORP(config-if)#``no shutdown`	Enables the interface.
`CORP(config)#``interface fastethernet 0/1`	Moves to interface configuration mode.
`CORP(config-if)#``description link to 3560 Switch`	Sets the locally significant interface description.
`CORP(config-if)#``ip address 172.31.1.5 255.255.255.252`	Assigns the IP address and netmask.
`CORP(config-if)#``no shutdown`	Enables the interface.
`CORP(config-if)#``exit`	Returns to global configuration mode.
`CORP(config)#``interface fastethernet 0/0`	Enters interface configuration mode.
`CORP(config-if)#``duplex full`	Enables full-duplex operation to ensure trunking will take effect between here and L2Switch2.
`CORP(config-if)#``no shutdown`	Enables the interface.
`CORP(config-if)#``interface fastethernet 0/0.1`	Creates a virtual subinterface and moves to subinterface configuration mode.
`CORP(config-subif)#``description Management VLAN 1 – Native VLAN`	Sets the locally significant interface description.
`CORP(config-subif)#``encapsulation dot1q 1 native`	Assigns VLAN 1 to this subinterface. VLAN 1 is the native VLAN. This subinterface uses the 802.1Q trunking protocol.
`CORP(config-subif)#``ip address 192.168.1.1 255.255.255.0`	Assigns the IP address and netmask.
`CORP(config-subif)#``interface fastethernet 0/0.10`	Creates a virtual subinterface and moves to subinterface configuration mode.
`CORP(config-subif)#``description Sales VLAN 10`	Sets the locally significant interface description.
`CORP(config-subif)#``encapsulation dot1q 10`	Assigns VLAN 10 to this subinterface. This subinterface uses the 802.1Q trunking protocol.
`CORP(config-subif)#``ip address 192.168.10.1 255.255.255.0`	Assigns the IP address and netmask.
`CORP(config-subif)#``interface fastethernet 0/0.20`	Creates a virtual subinterface and moves to subinterface configuration mode.
`CORP(config-subif)#``description Engineering VLAN 20`	Sets the locally significant interface description.
`CORP(config-subif)#``encapsulation dot1q 20`	Assigns VLAN 20 to this subinterface. This subinterface uses the 802.1Q trunking protocol.
`CORP(config-subif)#``ip address 192.168.20.1 255.255.255.0`	Assigns the IP address and netmask.
`CORP(config-subif)#``interface fastethernet 0/0.30`	Creates a virtual subinterface and moves to subinterface configuration mode.
`CORP(config-subif)#``description Marketing VLAN 30`	Sets the locally significant interface description.
`CORP(config-subif)#``encapsulation dot1q 30`	Assigns VLAN 30 to this subinterface. This subinterface uses the 802.1Q trunking protocol.
`CORP(config-subif)#``ip add 192.168.30.1 255.255.255.0`	Assigns the IP address and netmask.
`CORP(config-subif)#``exit`	Returns to interface configuration mode.
`CORP(config-if)#``exit`	Returns to global configuration mode.
`CORP(config)#``router eigrp 10`	Creates EIGRP routing process 10 and moves to router configuration mode.
`CORP(config-router)#``network 192.168.1.0`	Advertises the 192.168.1.0 network.
`CORP(config-router)#``network 192.168.10.0`	Advertises the 192.168.10.0 network.
`CORP(config-router)#``network 192.168.20.0`	Advertises the 192.168.20.0 network.
`CORP(config-router)#``network 192.168.30.0`	Advertises the 192.168.30.0 network.
`CORP(config-router)#``network 172.31.0.0`	Advertises the 172.31.0.0 network.
`CORP(config-router)#``network 192.31.7.0`	Advertises the 192.31.7.0 network.
`CORP(config-router)#``no auto-summary`	Turns off automatic summarization at classful boundary.
`CORP(config-router)#``exit`	Returns to global configuration mode.
`CORP(config)#``exit`	Returns to privileged mode.
`CORP#``copy running-config startup-config`	Saves the configuration in NVRAM.

L2Switch2 (Catalyst 2960)

`Switch>``enable`	Moves to privileged mode.
`Switch#``configure terminal`	Moves to global configuration mode.
`Switch(config)#``hostname L2Switch2`	Sets the host name.
`L2Switch2(config)#``vlan 10`	Creates VLAN 10 and enters VLAN-configuration mode.
`L2Switch2(config-vlan)#``name Sales`	Assigns a name to the VLAN.
`L2Switch2(config-vlan)#``exit`	Returns to global configuration mode.
`L2Switch2(config)#``vlan 20`	Creates VLAN 20 and enters VLAN-configuration mode.
`L2Switch2(config-vlan)#``name Engineering`	Assigns a name to the VLAN.
`L2Switch2(config-vlan)#``vlan 30`	Creates VLAN 30 and enters VLAN-configuration mode. Note that you do not have to exit back to global configuration mode to execute this command.
`L2Switch2(config-vlan)#``name Marketing`	Assigns a name to the VLAN.
`L2Switch2(config-vlan)#``exit`	Returns to global configuration mode.
`L2Switch2(config)#``interface range fastethernet 0/2 - 4`	Enables you to set the same configuration parameters on multiple ports at the same time.
`L2Switch2(config-if-range)#``switchport mode access`	Sets ports 2–4 as access ports.
`L2Switch2(config-if-range)#``switchport access vlan 10`	Assigns ports 2–4 to VLAN 10.
`L2Switch2(config-if-range)#``interface range fastethernet 0/5 - 8`	Enables you to set the same configuration parameters on multiple ports at the same time.
`L2Switch2(config-if-range)#``switchport mode access`	Sets ports 5–8 as access ports.
`L2Switch2(config-if-range)#``switchport access vlan 20`	Assigns ports 5–8 to VLAN 20.
`L2Switch2(config-if-range)#``interface range fastethernet 0/9 - 12`	Enables you to set the same configuration parameters on multiple ports at the same time.
`L2Switch2(config-if-range)#``switchport mode access`	Sets ports 9–12 as access ports.
`L2Switch2(config-if-range)#``switchport access vlan 30`	Assigns ports 9–12 to VLAN 30.
`L2Switch2(config-if-range)#``exit`	Returns to global configuration mode.
`L2Switch2(config)#``interface fastethernet 0/1`	Moves to interface configuration mode.
`L2Switch2(config)#``description Trunk Link to CORP Router`	Sets locally significant interface description.
`L2Switch2(config-if)#``switchport mode trunk`	Puts the interface into trunking mode and negotiates to convert the link into a trunk link.
`L2Switch2(config-if)#``exit`	Returns to global configuration mode.
`L2Switch2(config)#``interface vlan 1`	Creates virtual interface for VLAN 1 and enters interface configuration mode.
`L2Switch2(config-if)#``ip address 192.168.1.2 255.255.255.0`	Assigns the IP address and netmask.
`L2Switch2(config-if)#``no shutdown`	Enables the interface.
`L2Switch2(config-if)#``exit`	Returns to global configuration mode.
`L2Switch2(config)#``ip default-gateway 192.168.1.1`	Assigns the default gateway address.
`L2Switch2(config)#``exit`	Returns to privileged mode.
`L2Switch2#``copy running-config startup-config`	Saves the configuration in NVRAM.

L3Switch1 (Catalyst 3560)

`Switch>``enable`	Moves to privileged mode.
`Switch#``configure terminal`	Moves to global configuration mode.
`Switch(config)#``hostname L3Switch1`	Sets the host name.
`L3Switch1(config)#``vtp mode sever`	Changes the switch to VTP server mode.
`L3Switch1(config)#``vtp domain testdomain`	Configures the VTP domain name to testdomain.
`L3Switch1(config)#``vlan 10`	Creates VLAN 10 and enters VLAN-configuration mode.
`L3Switch1(config-vlan)#``name Accounting`	Assigns a name to the VLAN.
`L3Switch1(config-vlan)#``exit`	Returns to global configuration mode.
`L3Switch1(config)#``vlan 20`	Creates VLAN 20 and enters VLAN-configuration mode.
`L3Switch1(config-vlan)#``name Marketing`	Assigns a name to the VLAN.
`L3Switch1(config-vlan)#``exit`	Returns to global configuration mode.
`L3Switch1(config)#``interface gigabitethernet 0/1`	Moves to interface configuration mode.
`L3Switch1(config-if)#``switchport trunk encapsulation dot1q`	Specifies 802.1Q encapsulation on the trunk link.
`L3Switch1(config-if)#``switchport mode trunk`	Puts the interface into trunking mode and negotiates to convert the link into a trunk link.
`L3Switch1(config-if)#``exit`	Returns to global configuration mode.
`L3Switch1(config)#``ip routing`	Enables IP routing on this device.
`L3Switch1(config)#``interface vlan 1`	Creates a virtual interface for VLAN 1 and enters interface configuration mode.
`L3Switch1(config-if)#``ip address 172.16.1.1 255.255.255.0`	Assigns the IP address and netmask.
`L3Switch1(config-if)#``no shutdown`	Enables the interface.
`L3Switch1(config-if)#``interface vlan 10`	Creates a virtual interface for VLAN 10 and enters interface configuration mode.
`L3Switch1(config-if)#``ip address 172.16.10.1 255.255.255.0`	Assigns the IP address and mask.
`L3Switch1(config-if)#``no shutdown`	Enables the interface.
`L3Switch1(config-if)#``interface vlan 20`	Creates a virtual interface for VLAN 20 and enters interface configuration mode.
`L3Switch1(config-if)#``ip address 172.16.20.1 255.255.255.0`	Assigns the IP address and mask.
`L3Switch1(config-if)#``no shutdown`	Enables the interface.
`L3Switch1(config-if)#``exit`	Returns to global configuration mode.
`L3Switch1(config)#``interface fastethernet 0/24`	Enters interface configuration mode.
`L3Switch1(config-if)#``no switchport`	Creates a Layer 3 port on the switch.
`L3Switch1(config-if)#``ip address 172.31.1.6 255.255.255.252`	Assigns the IP address and netmask.
`L3Switch1(config-if)#``exit`	Returns to global configuration mode.
`L3Switch1(config)#``router eigrp 10`	Creates EIGRP routing process 10 and moves to router config mode.
`L3Switch1(config-router)#``network 172.16.0.0`	Advertises the 172.16.0.0 classful network.
`L3Switch1(config-router)#``network 172.31.0.0`	Advertises the 172.31.0.0 classful network.
`L3Switch1(config-router)#``no auto-summary`	Turns off automatic summarization at classful boundary.
`L3Switch1(config-router)#``exit`	Applies changes and returns to global configuration mode.
`L3Switch1(config)#``exit`	Returns to privileged mode.
`L3Switch1#``copy running-config startup-config`	Saves configuration in NVRAM.

L2Switch1 (Catalyst 2960)

`Switch>``enable`	Moves to privileged mode.
`Switch#``configure terminal`	Moves to global configuration mode.
`Switch(config)#``hostname L2Switch1`	Sets the host name.
`L2Switch1(config)#``vtp domain testdomain`	Configures the VTP domain name to testdomain.
`L2Switch1(config)#``vtp mode client`	Changes the switch to VTP client mode.
`L2Switch1(config)#``interface range fastethernet 0/1 - 4`	Enables you to set the same configuration parameters on multiple ports at the same time.
`L2Switch1(config-if-range)#``switchport mode access`	Sets ports 1–4 as access ports.
`L2Switch1(config-if-range)#``switchport access vlan 10`	Assigns ports 1–4 to VLAN 10.
`L2Switch1(config-if-range)#``interface range fastethernet 0/5 - 8`	Enables you to set the same configuration parameters on multiple ports at the same time.
`L2Switch1(config-if-range)#``switchport mode access`	Sets ports 5–8 as access ports.
`L2Switch1(config-if-range)#``switchport access vlan 20`	Assigns ports 5–8 to VLAN 20.
`L2Switch1(config-if-range)#``exit`	Returns to global configuration mode.
`L2Switch1(config)#``interface gigabitethernet 0/1`	Moves to interface configuration mode.
`L2Switch1(config-if)#``switchport mode trunk`	Puts the interface into trunking mode and negotiates to convert the link into a trunk link.
`L2Switch1(config-if)#``exit`	Returns to global configuration mode.
`L2Switch1(config)#``interface vlan 1`	Creates a virtual interface for VLAN 1 and enters interface configuration mode.
`L2Switch1(config-if)#``ip address 172.16.1.2 255.255.255.0`	Assigns the IP address and netmask.
`L2Switch1(config-if)#``no shutdown`	Enables the interface.
`L2Switch1(config-if)#``exit`	Returns to global configuration mode.
`L2Switch1(config)#``ip default-gateway 172.16.1.1`	Assigns the default gateway address.
`L2Switch1(config)#``exit`	Returns to privileged mode.
`L2Switch1#``copy running-config startup-config`	Saves the configuration in NVRAM.

< Back Page 4 of 12 Next >

🔖 Save To Your Account

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.

Privacy Notice

Overview

Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information

To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.

Surveys

Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.

Newsletters

If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information

Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.

Security

Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.

Children

This site is not directed to children under the age of 13.

Marketing

Pearson may send or direct marketing communications to users, provided that

Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
Such marketing is consistent with applicable law and Pearson's legal obligations.
Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information

If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.

Choice/Opt-out

Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information

Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents

California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure

Pearson may disclose personal information, as follows:

As required by law.
With the consent of the individual (or their parent, if the individual is a minor)
In response to a subpoena, court order or legal process, to the extent permitted or required by law
To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
To investigate or address actual or suspected fraud or other illegal activities
To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.

Links

This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact

Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice

We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020

Email Address