[afnog] Help Please - is my ISP Stripping my prepends?

[Alex Rhys-Hurn]

I should add my AS Number 37166 but I guess you can look that up too. 

Alex 

----- Original Message -----

> From: "Alex Rhys-Hurn" <alex at itworx.co.ke>
> To: afnog at afnog.org
> Sent: Friday, 30 May, 2014 11:16:35 AM
> Subject: Re: [afnog] Help Please - is my ISP Stripping my prepends?

> Dear Mark,

> Thank you for working with me, I really appreciate the input.

> My prefixes are:
> 194.9.64.0/23
> 194.9.64.0/24
> 194.9.65.0/24

> Announced as:
> 194.9.65.0/24 via Access Kenya with no prepend
> 194.9.64.0/24 via ISP1 prepended 3x
> 194.9.0.0/23 via Access Kenya with no prepend

> and

> 194.9.64.0/24 via Safaricom with no prepend
> 194.9.65.0/24 via Safaricom prepended 3x
> 194.9.0.0/23 via Safaricom prepended 3x

> I should add that we only receive default route from the ISP.

> yes, as per your email, I am not seeing the expected behaviour from ISP 2
> Safaricom. But now that I look again, I see paths to safaricom that are
> prepended (their AS 37061) being prepended 5x so my path is still shorter
> via my prepended path on Access Kenya. Should I just ramp up my prepending
> on Access Kenya?

> Alex

> ----- Original Message -----

> > From: "Alex Rhys-Hurn" <alex at itworx.co.ke>
> 
> > To: afnog at afnog.org
> 
> > Sent: Friday, 30 May, 2014 10:37:06 AM
> 
> > Subject: [afnog] Help Please - is my ISP Stripping my prepends?
> 

> > Hello everyone,
> 

> > This is my first post here, I hope somebody can help.
> 

> > I have a /23 which I have divided in to two /24s
> 

> > My objective is to balance (as far is as possible) traffic across two ISP
> > links using filters with prepend.
> 

> > I have announced as follows:
> 

> > 194.9.a.0/24 via ISP1 with no prepend
> 
> > 194.9.b.0/24 via ISP1 prepended 3x
> 
> > 194.9.a.0/23 via ISP1 with no prepend
> 

> > and
> 

> > 194.9.a.0/24 via ISP2 prepended 3x
> 
> > 194.9.b.0/24 via ISP2 with no prepend
> 
> > 194.9.a.0/23 via ISP2 prepended 3x
> 

> > When I use the looking glass at lg.he.net I can see the prepends from ISP1
> > properly, but I cannot see the prepends from ISP2
> 
> > , my traffic works over both links but is very heavy on ISP1
> 

> > Does this mean the ISP is stripping the prepends? Is there anything I can
> > do
> > about it?
> 

> > I hope this is clear, and that somebody may have some insight.
> 

> > Many thanks in advance.
> 

> > Alex
> 

> > --
> 
> > Alex Rhys-Hur n | ITworX Limited
> 
> > P.O. Box 1649, 00502, Karen, Kenya
> 
> > Tel: +254 (0) 20 2444824 | Cell: +254 (0) 724 972541
> 
> > Web: www.itworx.co.ke
> 

> > _______________________________________________
> 
> > afnog mailing list
> 
> > http://afnog.org/mailman/listinfo/afnog
> 
> --
> Alex Rhys-Hur n | ITworX Limited
> P.O. Box 1649, 00502, Karen, Kenya
> Tel: +254 (0) 20 2444824 | Cell: +254 (0) 724 972541
> Web: www.itworx.co.ke

-- 
Alex Rhys-Hur n | ITworX Limited 
P.O. Box 1649, 00502, Karen, Kenya 
Tel: +254 (0) 20 2444824 | Cell: +254 (0) 724 972541 
Web: www.itworx.co.ke 
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