SYSTEM WARNING: 'date_default_timezone_get(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone.' in '/usr/share/mantis/www/core.php' line 264

0001491: "Emergency" Uplink - MantisBT Endian Bugtracker
Endian Issue Tracker

Please see now our new Bugtracker system: JIRA

View Issue Details Jump to Notes ] Issue History ] Print ]
IDProjectCategoryView StatusDate SubmittedLast Update
0001491Endian FirewallNetwork related (VPN, uplinks)public2008-11-28 15:542009-06-10 12:55
Assigned To 
PlatformOSOS Version
Product Version2.2-rc3 
Target VersionfutureFixed in Version 
Summary0001491: "Emergency" Uplink
DescriptionI have two active Uplinks over fixed IP with Ethernet. Also i have a Backup-Uplink with a UMTS UDB Stick.

Now it would be a nice feature to have a UMTS "Emergency Uplink"
This means for me that the UMTS Link only come up if BOTH other active Uplinks go down.

In this case also all policy based routings have to switch automatically to the umts uplink.
TagsNo tags attached.
Attached Files

- Relationships

-  Notes
peter-endian (administrator)
2008-12-09 20:44

You can define chains of uplinks. For example:

main > uplink1 > umts uplink
uplink1 > umts uplink
uplink2 > uplink1 > umts uplink

This configuration behaves exactly as you described.
As long as uplink1 is working uplink2 and main direct the traffic through uplink1 if they fail. If uplink1 also fails, all will be directed through umts uplink

Use "start on boot" in order to mark the uplink as "be always up". Use "if uplink fails use xxx" in order to define the respective backup uplink. The trick is that a normal uplink which always need to be up (start on boot) can also be a backup uplink of another uplink.
aender (reporter)
2008-12-10 06:47


Sounds good.

But this is no solution if i have two uplinks and policy routing.
First uplink for http traffic and second uplink for smtp and vpn.

In your scenario "main - uplink1 - umts as backup" all traffic would be directed to main.
aender (reporter)
2008-12-10 10:12

My Example.


Both active with policy based routing for different services

UMTS Uplink should be "Emergency Uplink"

If main goes down all traffic should go to uplink1 and vice versa.
Only if both (main and uplink1) are down all traffic should go to umts uplink.

Any solution? Your example wouldn´t work for this.
Or am i wrong?
peter-endian (administrator)
2008-12-11 13:59

Ah you would like to have uplink1 as backup of main and main as backup of uplink1, but if both are down, umts should be used.
ok, that's not possible.
you can chain the uplinks but you can have only one child on each.
aender (reporter)
2008-12-11 14:03


please add this feature to the roadmap
aender (reporter)
2008-12-11 14:17

Can you do this for 2.3 and not "future" ?

- Issue History
Date Modified Username Field Change
2008-11-28 15:54 aender New Issue
2008-11-28 15:54 aender Assigned To => peter-endian
2008-12-09 20:44 peter-endian Note Added: 0001854
2008-12-10 06:47 aender Note Added: 0001856
2008-12-10 10:12 aender Note Added: 0001857
2008-12-11 13:59 peter-endian Note Added: 0001866
2008-12-11 14:03 aender Note Added: 0001867
2008-12-11 14:07 peter-endian Target Version => future
2008-12-11 14:17 aender Note Added: 0001868
2009-06-10 12:55 peter-endian Assigned To peter-endian =>

Copyright © 2005-2008 Endian, SRL. All rights reserved.

Copyright © 2000 - 2012 MantisBT Group
Powered by Mantis Bugtracker