Hi,
I have this question to which I have not been able to get a conclusive
answer (I have heard different things).
When an ISP buys a router does it want a worst-case guarantee about the
router's capabilities? Or will it buy a router which can give better
performance in the average case (it
Hello,
Could someone please answer the following question?
Under exactly what conditions does an RIR qualify for a new /8 from
IANA?
Harsha.
Hello,
Some prefixes in the Route Views routing table do not have a prefix
length specified. For example,
4.0.0.0 and 61.0.0.0 do not have a prefix length specified in the Route
Views routing table. 61/8 belongs to APNIC. 4/8 belongs to Genuity.
Why is this? How does one find out the
Hello,
Currently APNIC's policy means that if an organization can fully use a
/26 (since 25% of /24=/26 and to satisfy the multihoming requirement the
organization will need to have a prefix advertised by two or more ISPs) it
can get a multihoming assignment from APNIC.
If Class C /8s are
H. Didn't this entire thread start with just aggravation of new
customers - to wit, folks in 69/8 having problems reaching places with
filters that haven't been updated?
s/filters that haven't been updated/key databases that have not been
updated/, and it looks like we're right back
Hello,
No, this is not the case. I enquired and it seems multihoming is not a
justification for a /24 in any RIR.
Does a network have to be able to fully utilize a /26 (25% of /24) in
order to multihome?
Harsha.
On Tue, 10 Dec 2002, Ejay Hire wrote:
Having a /24 doesn't indicate you are a
, 10 Dec 2002, Harsha Narayan wrote:
Hello,
No, this is not the case. I enquired and it seems multihoming is not a
justification for a /24 in any RIR.
Does a network have to be able to fully utilize a /26 (25% of /24) in
order to multihome?
Harsha.
On Tue, 10 Dec 2002, Ejay
, and I have successfully used this as
justification for a customer.
http://www.arin.net/policy/2001_2.html
-ej
-Original Message-
From: Harsha Narayan [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 10, 2002 1:15 PM
To: Ejay Hire
Cc: [EMAIL PROTECTED]
Subject: RE: FW: /8s
Hello,
The policy says that a /24 of PA space can be given if the
customer can show that it has an immediate requirement of 25% of the
/24 = /26.
That is the reason I asked if the multihomer has to be able to fully
utilize a /26=25% of /24 to be able to multihome.
Thanks,
Harsha.
On Tue, 10
reassignment from their upstream ISP,
regardless of host requirements
-ej
-Original Message-
From: Harsha Narayan [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 10, 2002 1:41 PM
To: Alec H. Peterson
Cc: Ejay Hire; [EMAIL PROTECTED]
Subject: RE: FW: /8s and filtering
Hello,
The policy
My original question was how does this interact with the filtering
policies - especially when the Class C space is used up - there are only
three /8s left there.
Harsha.
On Tue, 10 Dec 2002, Alec H. Peterson wrote:
--On Tuesday, December 10, 2002 11:41 -0800 Harsha Narayan
[EMAIL PROTECTED
Hello,
Thank you very much everyone for all your replies. When Class C space
gets used up, wouldn't the filtering policies have to change to allow the
same kind of multihoming from the Class A space. Currently, a /24 from
Class C is enough to get past filters. However later, a /22 (or is it
2) Small multihomers must get the ISP that assigns them address space to
allocate them at least a /24 (with multihoming as the justification if
needed). The ISP must agree to allow them to advertise their allocation
through other providers and must agree to hear and announce the block
Hello,
Yes, it is all classless now, but I saw Verio's policies and thought
that it is the way ISPs filter. Also, the Jippi group filters at /21
except in the 192.0/7 space (where it is a /24). I didn't have enough
knowledge to realize that classful was vestigal.
Thanks,
Harsha.
On Tue, 10
Hi,
It would require a PKI and also require every router to support it.
Harsha.
On Tue, 10 Dec 2002, Vadim Antonov wrote:
On Tue, 10 Dec 2002, Harsha Narayan wrote:
Key databases:
Using cryptography to authenticate routing updates gets messy very soon.
Then, there will again
Hi,
Actually this is what I was also wondering - I thought that half the
time LIRs don't register their assignments? Can anyone confirm this?
Thanks,
Harsha.
I am shocked to see that there is a LIR that actually registers what
they are supposed to (at least according to the RIPE region).
Hello,
Are there some ISPs who filter prefixes longer than /19 or a /20?. I
thought they filtered only prefixes which are longer than /24?
Harsha.
Hi,
This is got very easily by using Google.
Harsha.
On Tue, 12 Nov 2002, Randy Bush wrote:
ripe-264 describes the blocks from which ripe is allocating and the
longest prefix they are allocating in that block.
what is the apnic equivalent of that document?
randy
November 2002 18:40 -0800 Harsha Narayan [EMAIL PROTECTED]
wrote:
How do ISPs manage the allocations they get from the RIRs? More
specifically, do they make the assignments from this sequentially or not?
Are multihoming assignments to customers amidst non-multihoming
assignments?
I ask
Hi,
How does one find out if a prefix is due to multihoming or traffic
engineering if the Origin AS is different from that of the parent prefix
and there is no Origin AS path-prepending? (apart from looking up whois)
Even if there is Origin AS path-prepending how do we know that the
prefix
Hi,
Can anyone please tell me the answer to the following question?
How do ISPs manage the allocations they get from the RIRs? More
specifically, do they make the assignments from this sequentially or not?
Are multihoming assignments to customers amidst non-multihoming
assignments?
I
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