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

[babatunde omogbai]

I would like to keep it simple by advertising the x/24 and a/23 on ISP1 link  and y/24 and a/23 on ISP2 link.
Then check to see what the prepends are on the looking glass to see how your ISP’s advertise this.

Then you will know the next cause of action.

Babatunde.
  
On 30 May 2014, at 09:20, Alex Rhys-Hurn <alex at itworx.co.ke> wrote:

> I should add my AS Number 37166 but I guess you can look that up too.
> 
> Alex
> 
> 
> 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
> 
> 
> 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-Hurn  |  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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> 
> 
> 
> 
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> 
> 
> 
> -- 
> Alex Rhys-Hurn  |  ITworX Limited
> P.O. Box 1649, 00502, Karen, Kenya
> Tel: +254 (0) 20 2444824 | Cell: +254 (0) 724 972541
> Web: www.itworx.co.ke
> 
> <webmail_logo.png>
> 
> 
> 
> 
> 
> 
> -- 
> Alex Rhys-Hurn  |  ITworX Limited
> P.O. Box 1649, 00502, Karen, Kenya
> Tel: +254 (0) 20 2444824 | Cell: +254 (0) 724 972541
> Web: www.itworx.co.ke
> 
> <webmail_logo.png>
> 
> 
> 
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