How do I configure two leased lines in one router?

Our routing and switching expert explains how to configure two leased lines in one router, in this Ask the Expert answer.

Sudhanshu Gupta

How do I configure two Internet leased lines in one router? If one line is down, the second can provide the connectivity. I have a Cisco router 1760.

The easiest way is to configure one floating static route so that the link becomes active in case the first link...

Step 2 of 2:

You forgot to provide an Email Address.

This email address doesn’t appear to be valid.

This email address is already registered. Please login.

You have exceeded the maximum character limit.

Please provide a Corporate E-mail Address.
- I agree to TechTarget’s Terms of Use, Privacy Policy, and the transfer of my information to the United States for processing to provide me with relevant information as described in our Privacy Policy.
Please check the box if you want to proceed.
- I agree to my information being processed by TechTarget and its Partners to contact me via phone, email, or other means regarding information relevant to my professional interests. I may unsubscribe at any time.
Please check the box if you want to proceed.

fails:

Ip route 0.0.0.0 0.0.0.0 ISP_A
Ip route 0.0.0.0 0.0.0. ISP_B 50

Traffic will go to the ISP B only when the ISP A link is down. The drawback in this case is that you would be using only one link.

Another way is to have routing protocol and BGP so that you can utilize both the links almost 50% for the traffic going out of your network.

This was last published in April 2008

Dig Deeper on Network Infrastructure

How should BGP route hijacking be addressed? A new report from NIST shows how BGP route hijacking can threaten the internet. Expert Judith Myerson reviews the guidance for improving BGP security.

Identifying and preventing router, switch and firewall vulnerabilities Routers, switches and firewalls are easy targets for hackers. Network security expert Brad Casey offers advice on keeping network devices secure.

Linux networking: Using ip tool instead of ifconfig If your server was configured manually, make sure the Linux network is set up with the correct IP configurations and the ip tool is being used to monitor your systems.

How to manage network bandwidth with distributed ISP bandwidth As enterprises grow, demand for bandwidth can increase exponentially. In this expert answer, Mike Chapple explains different techniques for managing network bandwidth with ISP distribution.

Network configuration flaws block server access and wireless printing Networks that use centralized data storage run the risk of losing wireless printing and server access when the data center link goes down. Learn how to keep access in this expert response.

How to configure ISDN and backup leases on routers Routing expert Sudhanshu Gupta explains how to configure ISDN and backup leases on routers in this expert answer.

Related Q&A from Sudhanshu Gupta

What is the difference between a managed and unmanaged switch?

One difference between managed and unmanaged switches is complexity. A managed switch is more complex and requires more skills, but it offers better ... Continue Reading

Linking an unmanaged switch and DHCP server

Unmanaged Linksys switches don't know where to send BootP and DHCP requests. Find out what to do to fix the problem of unmanaged switches and DHCP ... Continue Reading

How does User-based Rate Limiting (UBRL) do if I have oversubscribed a port or switch?

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

Meet all of our Networking experts

View all Networking questions and answers

Join the conversation

1 comment

Send me notifications when other members comment.

Oldest

[-]

Leecheng - 21 Jun 2017 12:31 AM

I have one issue i perform configure, please suggestion me
now i have one lease line from ISP to HQ and Branch A already, but now i am install one backup lease line point to point from HQ to Branch A, so i need configure both these line in one Cisco Router 3925

My aim is to have a backup line so that when main line goes down, the traffic should go through backup leased line.

please suggestion me
thanks an advance

Please create a username to comment.

Microsoft Teams reaches 20 million users, threatening Slack

The advantages of video calling drive business competition

Microsoft, Cisco usher in new era of video conferencing interoperability

Deploy kiosk devices with the Managed Home Screen Android app

New Outlook features appeal to users on the go

Smartphone market trends elicit longer refresh cycles

Understand top public cloud repatriation use cases

Microsoft quantum development turns toward hardware

Top 5 options for Linux certifications

Cohesity, Pivot3 update channel partner programs, MDF funds

Businesses move key applications off public cloud to save costs

Silver Peak cautions against sitting on the fence over SD-WAN

Related Resources

Dig Deeper on Network Infrastructure

Related Q&A from Sudhanshu Gupta

Have a question for an expert?

Join the conversation

1 comment

Register

Login

Forgot your password?

Your password has been sent to:

Please create a username to comment.