There is BGP running on the Internet routers and they
have their own AS.
So now that I know default-information originate is
the way to go, can it be put on two routers on the
same segment at the same time? And also, since the
command requires the router to have a default route
itself, should I put in a static route pointing
towards the ISP peer? Would this be counter-productive
since I'm taking in so many BGP routes already? I
don't want to use the 'always' parameter because what
if my link goes down. I don't want to rely on icmp
redirect to point back to the other Internet router.
Thanks for your advice.
Michael
--- "Howard C. Berkowitz" <[EMAIL PROTECTED]> wrote:
> >[MCI]----[Cat5K w/RSM]----[UUNet]
> > |
> > Internal LAN
> >
> >
> > I have a client with two Internet routers
> running
> >BGP multihomed to the ISPs, MCI and UUNET. Inbound
> >traffic to their AS is pretty much balanced between
> >MCI and UUNET. On the inside however, where MCI and
> >UUNET connect into a Cat5K, the MCI is the HSRP
> active
> >router and thus handles most of the outbound
> traffic.
> >The client wants to load balance outbound traffic
> >between the two.
> > So when the client recently added an RSM to the
> >Cat5K, I proposed to remove HSRP totally and run
> OSPF
> >so that the RSM sees two equal-cost default routes
> to
> >the routers.
> > My question is, can you run default-information
> >originate on two routers? And would that work in
> this
> >scenario?
>
>
> It's a good approach, at least for load-balancing
> your outgoing
> traffic. To have any chance of affecting incoming
> traffic, you need
> to play BGP games. Since you speak of their AS, I
> assume there is BGP.
>
> Default-information originate works quite well. If
> the Cat5K is the
> only layer 3 aware hop, the next caveat may not be
> that important,
> but if it feeds additional router hops, be sure that
> the default
> originated is of OSPF external type 1, not type 2,
> so internal
> reachability is considered in the interest of load
> balancing.
>
> _________________________________
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