Hi,
I'm looking for a network abuse contact at Georgia College & State
University (gcsu.edu). Any information off list would be appreciated.
Thanks,
Jaren
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On 6/7/2010 1:04 PM, Jaren Angerbauer wrote:
> Hi,
>
> I'm looking for a network abuse contact at Georgia College & State
> University (gcsu.edu). Any information off list would be appreciated.
Followed up with Jaren offline.
Thanks
Gabriel Iovino
Has anyone ever heard of a multi-homed enterprise not running bgp with
either of 2 providers, but instead, each provider statically routes a block
to their common customer and also each originates this block in BGP? One
of the ISP's in this case owns the block and has even provided a letter of
au
Should work fine.
--Original Message--
From: Dale Cornman
To: nanog@nanog.org
Subject: Strange practices?
Sent: Jun 7, 2010 5:50 PM
Has anyone ever heard of a multi-homed enterprise not running bgp with
either of 2 providers, but instead, each provider statically routes a block
to their co
* Dale Cornman:
> I had personally never heard of this and am curious if this is a
> common practice as well as if this would potentially create any
> problems by 2 Autonomous Systems both originating the same prefix.
The 6to4 anycast gateway RFC practically mandates this, and it does
work when y
On Mon, Jun 07, 2010 at 03:50:25PM -0500, Dale Cornman wrote:
> Has anyone ever heard of a multi-homed enterprise not running bgp with
> either of 2 providers, but instead, each provider statically routes a block
> to their common customer and also each originates this block in BGP?
Yes; tends
Hve seen it a few times -- usually with enterprise customers who are
unable to manage their own routers and one ISP which has problems
configuring BGP on their client facing equipment.
Dale Cornman wrote:
> Has anyone ever heard of a multi-homed enterprise not running bgp with
> either of 2 provi
I would say partitioning into two AS's like this is not a good thing. I
wouldn't consider it a valid design myself, and would avoid it if possible.
If one of the AS's that is announcing the block, originates any traffic into
the other AS for that block, the traffic will drop. I realize this i
Let me recant on what I said. I re-read and had myself confused (apologies).
I see that the providers are using their own AS's. I still would not do this
if it could be avoided, but the traffic won't be dropped like I had said, in
the way I was thinking.
What I was thinking was a case where
It's going to show inconsistent AS which some people may not like, but
that's just ugly not broken. As the customer, it means your outgoing
path selection is probably being made on the basis of some non-global
attribute, and the return path is entirely at the mercy of your two isps...
I would
On Mon, Jun 7, 2010 at 13:50, Dale Cornman wrote:
>
> Has anyone ever heard of a multi-homed enterprise not running bgp with
> either of 2 providers, but instead, each provider statically routes a block
> to their common customer and also each originates this block in BGP? One
> of the ISP's in
"Has anyone ever heard of a multi-homed enterprise not running bgp with
either of 2 providers, but instead, each provider statically routes a block
to their common customer and also each originates this block in BGP?”
As stated before...yes this is a common practice.
"One of the ISP's in this cas
On 2010.06.07 17:49, Murphy, Jay, DOH wrote:
> "Has anyone ever heard of a multi-homed enterprise not running bgp with
> either of 2 providers, but instead, each provider statically routes a block
> to their common customer and also each originates this block in BGP?�
>
> As stated before...yes
"So if the enterprise loses connectivity to one of these two providers, does
the provider without working connectivity to the enterprise have mechanism in
place to cease originating the address space?"
Yes, BGP updates.
~Jay Murphy
IP Network Specialist
NM State Government
IT
On 6/7/10 11:51 PM:
Has anyone ever heard of a multi-homed enterprise not running bgp with
either of 2 providers, but instead, each provider statically routes a block
to their common customer and also each originates this block in BGP?
Yes, this is common and works fine. We do it with a number
Yes, the customer has an AS number, it's just from the private AS number block,
e.g. AS 65000..when the block is routed to the AS running BGP, it is tagged
with that ISP's public AS number, and announced to the world in this manner.
OK, acknowledged. Clarify, "transiting"? Do you mean one ISP ac
On 2010.06.07 18:10, Murphy, Jay, DOH wrote:
> Yes, the customer has an AS number, it's just from the private AS number
> block, e.g. AS 65000..when the block is routed to the AS running BGP, it is
> tagged with that ISP's public AS number, and announced to the world in this
> manner.
...but t
On 2010.06.07 17:59, Murphy, Jay, DOH wrote:
>
>
> "So if the enterprise loses connectivity to one of these two providers, does
> the provider without working connectivity to the enterprise have mechanism in
> place to cease originating the address space?"
>
>
>
> Yes, BGP updates.
...ag
Perhaps the providers BGP is just being fed from interface anchored static
routes which will, hopefully, drop out if the customer facing interface goes
down. Of course, this is realistic if we're talking about actual circuits
like a T-1, not so much if we're talking metro ethernet or something...
On Mon, Jun 7, 2010 at 14:59, Murphy, Jay, DOH wrote:
> "So if the enterprise loses connectivity to one of these two providers, does
> the provider without working connectivity to the enterprise have mechanism in
> place to cease originating the address space?"
> Yes, BGP updates.
Um, it wasn't
Steve,
We are obviously interpreting this in different slants.
Definition of Transit service: for example, AS200 is said to receive transit
service from, let's say AS3356, if through this connection, AS200 receives
connectivity to the entire Internet and not only AS3356 and its customers.
Yes
Right on...
~Jay Murphy
IP Network Specialist
NM State Government
IT Services Division
PSB - IP Network Management Center
Santa Fé, New México 87505
"We move the information that moves your world."
"Good engineering demands that we understand what we're doing and why, keep an
open
Yes, I understand this point. So, elaborate on the answer... I am not making
something simple, complex, homey.
~Jay Murphy
IP Network Specialist
NM State Government
IT Services Division
PSB – IP Network Management Center
Santa Fé, New México 87505
"We move the information that moves your worl
On 2010.06.07 18:48, Murphy, Jay, DOH wrote:
> Steve,
>
> We are obviously interpreting this in different slants.
Agreed ;)
> Definition of Transit service: for example, AS200 is said to receive transit
> service from, let's say AS3356, if through this connection, AS200 receives
> connectivit
would appreciate clue bat from anyone successful with isisd under
quqgga. please contant me off list. thanks.
randy
Bill Fehring wrote:
> On Mon, Jun 7, 2010 at 14:59, Murphy, Jay, DOH wrote:
>> "So if the enterprise loses connectivity to one of these two providers, does
>> the provider without working connectivity to the enterprise have mechanism
>> in place to cease originating the address space?"
>> Yes, B
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