Thanks for your help. I have made the change from -all to -self and emailed the ISP to see if that fixed it. As far as optimization is I will look into it. Right now we have large blocks many /24 that are not in use at this time. We dont want to advertise those networks because we don't want all garbage traffic.
On Mon, May 27, 2013 at 2:48 PM, Adam Thompson <[email protected]>wrote: > On 2013-05-27 13:30, Chris Bagnall wrote: > >> On 27/5/13 6:18 pm, Zach Underwood wrote: >> >>> network 216.105.159.0/24 >>> network 216.105.158.0/24 >>> network 216.105.157.0/24 >>> network 216.105.128.0/24 >>> network 216.105.135.0/24 >>> network 216.105.136.0/23 >>> network 216.105.141.0/24 >>> network 216.105.143.0/24 >>> network 216.105.144.0/22 >>> network 216.105.153.0/24 >>> network 216.105.155.0/24 >>> network 216.105.156.0/24 >>> network 216.105.151.0/24 >>> >> >> Not related to the issue you're experiencing, but why don't you >> aggregate some of those? >> > > That's an excellent point... your upstreams may aggregate for you, but the > bigger the advertised netblock, the better. > Oh. What maniac gave you *that* allocation? Ah, I see, you're only > advertising some of your routes on this router; I assume you are > advertising the rest of your address space from another router somewhere? > Still, there is one optimization you can do: replace 216.105.156.0/24through > 216.105.159.0/24 with 216.105.156.0/22. That shrinks your prefix list by > 3. If everyone on the 'net did that, we'd all need less RAM to hold > routing tables. > > If you aren't advertising the rest of your address space elsewhere, you > have to choose between local or global optimization. To optimize locally, > you're doing it right. To optimize globally, you should be advertising the > largest prefixes possible, e.g. 216.105.128.0/23 instead of /24. That > causes a lot of traffic to reach you that you'll immediately drop, however. > > -Adam Thompson > [email protected] > > > ______________________________**_________________ > List mailing list > [email protected] > http://lists.pfsense.org/**mailman/listinfo/list<http://lists.pfsense.org/mailman/listinfo/list> > -- Zach Underwood (RHCE,RHCSA,RHCT) My website <http://zachunderwood.me> My photes <http://zunder1990.openphoto.me>
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