I think I have reached my 'rule' actually. In a normal situation, I would
want the Internet ASBRs injecting default routes on area 0, as that is where
everything is passing through anyway. This assumes a 'clean' environment
where the only things being routed in the OSPF AS are private addresses.
Yes, it is an Internet ASBR, there are others, and its only purpose is to
advertise a default route + local DMZ into OSPF. The ASBR would get a
default route from BGP. In turn the ISP is advertising a default route via
BGP into the outside router. The plan is that if the ISP stops advertising
Steve,
Yes, it is an Internet ASBR, there are others, and its only purpose is to
advertise a default route + local DMZ into OSPF. The ASBR would get a
default route from BGP. In turn the ISP is advertising a default route
via
BGP into the outside router. The plan is that if the ISP stops
Yes, it is an Internet ASBR, there are others, and its only purpose is to
advertise a default route + local DMZ into OSPF. The ASBR would get a
default route from BGP. In turn the ISP is advertising a default route via
BGP into the outside router. The plan is that if the ISP stops advertising
I understand that there are many ways to, umm, do you-know-what to the cat,
but what I am looking for is a higher guiding philosophy or rule to use as a
foundation to guide the rest of the process. My understanding of the
high-level OSPF process is that OSPF wants to route traffic from area a to
At 6:56 PM + 1/26/03, Steve Ringley wrote:
I understand that there are many ways to, umm, do you-know-what to the cat,
but what I am looking for is a higher guiding philosophy or rule to use as a
foundation to guide the rest of the process. My understanding of the
high-level OSPF process is
That is why I am asking the question - it is unclear! Let me try it this
way:
If we take the textbook Internet setup, we would have an
outside router - BGP
firewall
inside router - OSPF ASBR to BGP
core router - OSPF backbone
On the inside router, would I create an ASBR with area 0 defines on
Why not just push default into your OSPF network from a router(s) with a
direct link to your firewall. Then your firewall simply points default to
the BGP speaking router (or uses vrrp or some igp for resilient routing in
the case of multiple routers)
Running BGP through your firewall, or
At 1:18 AM + 1/25/03, Priscilla Oppenheimer wrote:
I'm afraid your question isn't clear.
By definition, an ASBR connects two unlike networks, one that is running
OSPF and one that isn't.
Moan...connects two unlike routing domain. Both could be different
OSPF processes.
So, the ASBR will
Steve Ringley wrote:
That is why I am asking the question - it is unclear! Let me
try it this
way:
If we take the textbook Internet setup, we would have an
outside router - BGP
firewall
inside router - OSPF ASBR to BGP
core router - OSPF backbone
On the inside router, would I
Howard C. Berkowitz wrote:
At 1:18 AM + 1/25/03, Priscilla Oppenheimer wrote:
I'm afraid your question isn't clear.
By definition, an ASBR connects two unlike networks, one that
is running
OSPF and one that isn't.
Moan...connects two unlike routing domain. Both could be
different
At 8:23 PM + 1/25/03, Priscilla Oppenheimer wrote:
Howard C. Berkowitz wrote:
At 1:18 AM + 1/25/03, Priscilla Oppenheimer wrote:
I'm afraid your question isn't clear.
By definition, an ASBR connects two unlike networks, one that
is running
OSPF and one that isn't.
At 8:56 PM + 1/25/03, Priscilla Oppenheimer wrote:
Steve Ringley wrote:
That is why I am asking the question - it is unclear! Let me
try it this
way:
If we take the textbook Internet setup, we would have an
outside router - BGP
firewall
inside router - OSPF ASBR to BGP
core
I have an OSPF network, and I have my Internet connections. Do I:
ASBR where traffic goes from area 0 to the Internet
or
ASBR where traffic goes to an area x then to the Internet?
This was never clear to me from my reading.
Message Posted at:
I'm afraid your question isn't clear.
By definition, an ASBR connects two unlike networks, one that is running
OSPF and one that isn't. So, the ASBR will connect to the Internet in your
example.
Steve Ringley wrote:
I have an OSPF network, and I have my Internet connections. Do
I:
ASBR
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