Re: [pfSense-discussion] BGP to get Internet

2009-10-30 Thread Evgeny Yurchenko

Aarno Aukia wrote:

Hello,

On Thu, Oct 29, 2009 at 17:03, Scott Ullrich sullr...@gmail.com wrote:
  

I do.   It requires removing the default gateway from the XML and not
visiting the WAN page again afterwards.



I haven't bothered - we get full feeds, so all routes are more
specific than the default route.

-Aarno
  


That is good but what is the point to keep all feeds if you are 
connected to only two ISP manly for redundancy purposes?

Evgeny

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Re: [pfSense-discussion] BGP to get Internet

2009-10-30 Thread Aarno Aukia
Hi,

On Fri, Oct 30, 2009 at 13:54, Evgeny Yurchenko evg.yu...@rogers.com wrote:
 I haven't bothered - we get full feeds, so all routes are more
 specific than the default route.

 -Aarno


 That is good but what is the point to keep all feeds if you are connected to
 only two ISP manly for redundancy purposes?
 Evgeny

There is none, you get away with two default routes from your ISPs if
you just want failover. But for the same effort (and some cheap RAM)
you can have the full table and do some traffic engineering if you
want to.

-Aarno
-- 
Aarno Aukia
Atrila GmbH
Switzerland

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Re: [pfSense-discussion] BGP to get Internet

2009-10-30 Thread William R. Lorenz

On Fri, 30 Oct 2009, Aarno Aukia wrote:


On Fri, Oct 30, 2009 at 13:54, Evgeny Yurchenko evg.yu...@rogers.com wrote:


I haven't bothered - we get full feeds, so all routes are more 
specific than the default route.


That is good but what is the point to keep all feeds if you are 
connected to only two ISP manly for redundancy purposes? Evgeny


There is none, you get away with two default routes from your ISPs if 
you just want failover. But for the same effort (and some cheap RAM) you 
can have the full table and do some traffic engineering if you want to.


There's generally three options when choosing what kind of feed to receive 
from an upstream -- full feeds, partial customer-only routes, or default 
routes only.  With full feeds, you'll have full redundancy for outbound 
traffic also and will be able to (to an extent) detect routing problems 
further up the path, i.e. in connectivity from ISP A to ISP C, upstream. 
It will also help protect against failures where layer 2 and 3 is up on 
the circuit but there are problems with your network provider's routing.


Full routes are very important for redundancy but require a considerable 
amount of memory in router land, which is where partial routes (so you at 
least know which networks the ISP has) and default-only routes come in.


--
William R. Lorenz

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Re: [pfSense-discussion] BGP to get Internet

2009-10-30 Thread Evgeny Yurchenko

William R. Lorenz wrote:

On Fri, 30 Oct 2009, Aarno Aukia wrote:

On Fri, Oct 30, 2009 at 13:54, Evgeny Yurchenko 
evg.yu...@rogers.com wrote:


I haven't bothered - we get full feeds, so all routes are more 
specific than the default route.


That is good but what is the point to keep all feeds if you are 
connected to only two ISP manly for redundancy purposes? Evgeny


There is none, you get away with two default routes from your ISPs if 
you just want failover. But for the same effort (and some cheap RAM) 
you can have the full table and do some traffic engineering if you 
want to.


There's generally three options when choosing what kind of feed to 
receive from an upstream -- full feeds, partial customer-only routes, 
or default routes only.  With full feeds, you'll have full redundancy 
for outbound traffic also and will be able to (to an extent) detect 
routing problems further up the path, i.e. in connectivity from ISP A 
to ISP C, upstream. It will also help protect against failures where 
layer 2 and 3 is up on the circuit but there are problems with your 
network provider's routing.


Full routes are very important for redundancy but require a 
considerable amount of memory in router land, which is where partial 
routes (so you at least know which networks the ISP has) and 
default-only routes come in.


Yes, this is from BGP theory. Returning to pfSense... memory is not an 
issue nowadays, what about CPU usage? Does anybody have data about CPU 
load when convergence happens with 'full feeds'?

Yevgeny.

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Re: [pfSense-discussion] BGP to get Internet

2009-10-29 Thread Evgeny Yurchenko

Scott Ullrich wrote:

On Thu, Oct 29, 2009 at 12:01 PM, Evgeny Yurchenko evg.yu...@rogers.com wrote:
  

Hello!

sorry if this topic was brought up before but...
I am running several pfSense-BGP installations but they are all for
redundancy purposes over several links.

Does anybody run pfSense with BGP and two Internet providers?
My concern is default gateway... if you have to specify default gateway when
you configure WAN interface then it should have less metric as the one
received via BGP.
May be I am missing something here.
Thanks.



I do.   It requires removing the default gateway from the XML and not
visiting the WAN page again afterwards.

Works fine, has been in use for over a year now since the 2008 hackathon.

Scott

  

Thank you. Do you have xml for 1.2.3-RC3 so I could try it?
Evgeny.



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Re: [pfSense-discussion] BGP to get Internet

2009-10-29 Thread Evgeny Yurchenko

From: Scott Ullrich sullr...@gmail.com
Subject: Re: [pfSense-discussion] BGP to get Internet


On Thu, Oct 29, 2009 at 12:08 PM, Evgeny Yurchenko evg.yu...@rogers.com 
wrote:

Thank you. Do you have xml for 1.2.3-RC3 so I could try it?
Evgeny.


   wan
   ifem1/if
   mtu/
   media/
   mediaopt/
   bandwidth100/bandwidth
   bandwidthtypeMb/bandwidthtype
   spoofmac/
   disableftpproxy/
   ipaddrXXX.XXX.XX.XXX/ipaddr
   subnet30/subnet
   /wan

Scott
I thought you corrected .php to exclude Gateway input field. So I just 
modify config.xml and never go to gui to modify WAN interface, right?

Thank you.
Evgeny. 



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Re: [pfSense-discussion] BGP to get Internet

2009-10-29 Thread Scott Ullrich
On Thu, Oct 29, 2009 at 9:32 PM, Evgeny Yurchenko evg.yu...@rogers.com wrote:
 I thought you corrected .php to exclude Gateway input field. So I just
 modify config.xml and never go to gui to modify WAN interface, right?

Yep, that boxes WAN IP never changes.

Scott

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