Thanks Kristian, I need the Public IP to be available via either of the upstream providers, hence for BGP
I'll chat to the upstream providers and see what we can organise -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Kristian Hoffmann Sent: 04 October 2010 08:05 PM To: Mikrotik discussions Subject: Re: [Mikrotik] dual WAN BGP feeds In general, you cannot advertise prefixes longer than /24 (e.g. /29) with BGP on the Internet. You may want to consider one of the failover options available on MikroTik (multiple default routes with check-gateway, netwatch scripts, etc.). I believe there are several examples in their wiki, like... http://wiki.mikrotik.com/wiki/Advanced_Routing_Failover_without_Scripting If your customer has public IP addresses that they need to be reachable over either ISP, then I'm not sure how you would accomplish that without BGP. -Kristian On Mon, 2010-10-04 at 20:45 +0300, Chupaka wrote: > I'm not sure whether it's allowed at all to announce less than /24 - consult > your upstreams. But in general it doesn't matter. > > 4 октября 2010 г. 20:27 пользователь james > <[email protected]>написал: > > > Thanks Chupaka > > > > Would it make a difference if my subnet was smaller than a /24? > > > > > > -----Original Message----- > > From: [email protected] > > [mailto:[email protected]] On Behalf Of Chupaka > > Sent: 04 October 2010 05:59 PM > > To: Mikrotik discussions > > Subject: Re: [Mikrotik] dual WAN BGP feeds > > > > You just advertize your subnet to both your uplinks, then use Routing > > Filter > > to set bgp-prepend (for example, 5) on announcements for backup link. > > > > Подпись: > > (добавляется в конце всех исходящих писем) > > > > > > 2010/10/1 james <[email protected]> > > > > > Hi Michael > > > > > > I'm actually not sure. I doubt it tho...Does it make a difference? > > > > > > -----Original Message----- > > > From: [email protected] > > > [mailto:[email protected]] On Behalf Of Michael Baird > > > Sent: 01 October 2010 06:42 PM > > > To: Mikrotik discussions > > > Subject: Re: [Mikrotik] dual WAN BGP feeds > > > > > > Is there subnet larger then a /24 ? > > > > > > Regards > > > Michael Baird > > > > Hi Guys > > > > > > > > I'm not that experienced with BGP so I have a few questions for the > > > pro's. > > > > > > > > I have a client that has Fibre connections to two major upstream ISP's. > > > > > > > > They require 99.999999 uptime of their public IP range for mission > > > critical > > > > applications. > > > > > > > > Is it possible to use BGP to advertise my client's public subnet via > > the > > > > primary ISP and should if they go down, then advertise the same range > > via > > > > the backup ISP? > > > > > > > > I'm assuming that I would need to create a BGP feed from my client's > > core > > > > router to each of the upstream ISP's? > > > > > > > > > > > > Thanks > > > > > > > > James > > > > > > > > > > _______________________________________________ > > > Mikrotik mailing list > > > [email protected] > > > http://www.butchevans.com/mailman/listinfo/mikrotik > > > > > > Visit http://blog.butchevans.com/ for tutorials related to Mikrotik > > > RouterOS > > > > > > _______________________________________________ > > > Mikrotik mailing list > > > [email protected] > > > http://www.butchevans.com/mailman/listinfo/mikrotik > > > > > > Visit http://blog.butchevans.com/ for tutorials related to Mikrotik > > > RouterOS > > > > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: > > < > > http://www.butchevans.com/pipermail/mikrotik/attachments/20101004/15521017/ > > attachment.html> > > _______________________________________________ > > Mikrotik mailing list > > [email protected] > > http://www.butchevans.com/mailman/listinfo/mikrotik > > > > Visit http://blog.butchevans.com/ for tutorials related to Mikrotik > > RouterOS > > > > _______________________________________________ > > Mikrotik mailing list > > [email protected] > > http://www.butchevans.com/mailman/listinfo/mikrotik > > > > Visit http://blog.butchevans.com/ for tutorials related to Mikrotik > > RouterOS > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://www.butchevans.com/pipermail/mikrotik/attachments/20101004/4ad34d7f/attachment.html> > _______________________________________________ > Mikrotik mailing list > [email protected] > http://www.butchevans.com/mailman/listinfo/mikrotik > > Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS _______________________________________________ Mikrotik mailing list [email protected] http://www.butchevans.com/mailman/listinfo/mikrotik Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS _______________________________________________ Mikrotik mailing list [email protected] http://www.butchevans.com/mailman/listinfo/mikrotik Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS
