Harry Lachanas wrote:
> I think there is no such thing such a true fail-over product.
> 
> Consider an a FTP session going out from an ISP provider in a multi ISP 
> scenario during which the link fails,
> a) the remote FTP server has no idea about your second ISP provider.
> b) Once the link fails the session will be off no matter what ...
> 
> Till then I'll remain to my shorewall boxes supporting N providers ( 
> thanks to vlans )  quite reliably with gwping-like solutions,  with the 
> above limitations of course.

That's correct, in a casual "dual WAN" setup such as this.  There's no 
coordination between the various broadband providers.  It's expected 
that active sessions will be lost.

The hope is that new sessions can automatically be configured to work 
correctly, though.  New outgoing sessions should automatically be routed 
among the ISP's that are still up.  The goal is to prevent them from 
somehow erroneously selecting an ISP that is down, thus stalling out the 
new connection.

Josh


------------------------------------------------------------------------------
Come build with us! The BlackBerry® Developer Conference in SF, CA
is the only developer event you need to attend this year. Jumpstart your
developing skills, take BlackBerry mobile applications to market and stay 
ahead of the curve. Join us from November 9-12, 2009. Register now!
http://p.sf.net/sfu/devconf
_______________________________________________
Shorewall-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/shorewall-users

Reply via email to