Solved

how do i set up juniper ssg5 failover for 2nd isp?

Posted on 2009-04-03
1
2,600 Views
Last Modified: 2012-05-06
i have a juniper ssg5 with my primary isp going into it. i have a backup isp comming into the building but not into the ssg5. is there a way i can do this? my config is very straight forward, not much routing. also once i do this is there anything i need to set up like dns forwarders on my servers or dns and mx records at our hosting site?

heres a copy of my config- do i need to add any dns info or backup routes?
0
Comment
Question by:cfischer225
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 32

Accepted Solution

by:
dpk_wal earned 500 total points
ID: 24072195
When you say the second ISP is not going into SSG5, I understand that if you connect an unused interface on SSG5 to secondary ISP network, this link can be used go to internet in case of primary ISP failure.

Let's assume you are using ethernet0/0 for primary ISP and are using ethernet0/1 for backup internet.

The steps needed are:
1. Configure ethetnet0/1 for Untrust zone.
2. Add route for secondary ISP with higher metric so when the primary goes down; secondary would take over.
Eg,
     set route 0.0.0.0/0 int e0/0 gate <primary_isp_gateway> preference 20 metric 20
     set route 0.0.0.0/0 int e0/1 gate <secondary_isp_gateway> preference 20 metric 30

I am assuming that the ethernet0/0 link would go down in the event of ISP failure; if this is not the case, then we would need to configure interface tracking and in case of failure track-ip would trigger failover.

Thank you.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Tired of waiting for your show or movie to load?  Are buffering issues a constant problem with your internet connection?  Check this article out to see if these simple adjustments are the solution for you.
Every server (virtual or physical) needs a console: and the console can be provided through hardware directly connected, software for remote connections, local connections, through a KVM, etc. This document explains the different types of consol…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

751 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question