Agree'd might be best to move the 0.0.0.0/0 down into a IGP. Here is a great example:
http://majornetwork.net/2013/07/originating-default-route-in-ospf-in-junos/ On Mon, Sep 30, 2013 at 5:04 PM, OBrien, Will <[email protected]> wrote: > I advertise a default route via an igp. (Ospf) when traffic gets to the > border routers, the best path is chosen thanks to ibgp between the two > border routers. I also maintain redundant links between the two border > routers so that an outage won't matter. > > Will O'Brien > > On Sep 30, 2013, at 5:52 PM, "George Hong" <[email protected]> wrote: > > > Hi Juniper Guru's. > > > > I Have a question regarding the best way to generate a default route in > BGP. > > > > The topology is as below. Rtr1 and rtr2 both have a full EBGP feed > > from different providers (incl Default route) > > rtr1 and rtr2 have an IBGP session and exchange full tables. > > There's also IBGP sessions between: > > rtr1- fw1 > > rtr1- fw2 > > rtr2- fw1 > > rtr2- fw2 > > > > On these sessions we only announce a default route from the routers to > > Firewalls. > > > > > > -------- ------- > > | rtr1 | | rtr2 | > > -------- -------- > > > > > > -------- ------- > > | fw1 | | fw2 | > > -------- -------- > > > > The challenge I have is a good way of originating a default route. > > For example rtr1 - fw1 is most preferred path (done using local > > prefs). But I'm preferring the ISP on rtr2 (localpref). > > as a result rtr1 is not sending the default route to fw1, since its > > best route was learned through IBGP from rtr2 (unless I'd set it up as > > route-reflector). > > > > Also I don't want the ASpath original ASpath to show up in the > > default. It should just be the "I" Locally originated, not the AS of > > my provider in there. > > > > I *do* need the default on both routers as well (I have a few remote > > sites using same AS, so rely on default to get there, not interested > > in allow-as-in etc now). > > So I can't put in a static pointing to my iso, cause I want to make > > sure it fails over correctly if that connections becomes unavailable. > > I'm guessing that also eliminates the " no-install discard " option as > > it will over ride the default route I learned from my ISP and/or other > > border router. > > > > So, wondering what's the best way to do this? any recommendations? > > tips? This is for both IPv4 and IPv6 > > > > Thanks, > > George > > _______________________________________________ > > juniper-nsp mailing list [email protected] > > https://puck.nether.net/mailman/listinfo/juniper-nsp > > _______________________________________________ > juniper-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/juniper-nsp > -- Phil Fagan Denver, CO 970-480-7618 _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
