From: Julian Pentermann (jpentermann@gmail.com)
Date: Thu Jul 17 2008 - 16:57:28 ART
Hey
150.1.1.0 0.0.0.255 will permit any devices on this entire subnet so
150.1.1.X
host 150.1.1.0 is essentially 150.1.1.0 0.0.0.0 so this will only match this
subnet not the hosts on the subnet
So it depends what you are trying to match really.
Cheers
Julian
On Thu, Jul 17, 2008 at 9:52 PM, Christopher Copley <copley.chris@gmail.com>
wrote:
> Experts,
>
> I have come to a lost when I am looking at an acl question. I have 4
> routers R1 <-> R3 <-> R4 <-> R5 and R5 <->R1 so it makes a big circle.
> R1
> and R4 both run EIGRP and OSPF and I redistribute on both. R3 is EIGRP
> only and R5 is OSPF only. In my lab there is a requirement for R1 to go
> the long way around to get to R3 Lo0 address 150.1.3.3, so in R1 under the
> ospf process I put in.....
> router ospf 1
> distance 89 0.0.0.0 255.255.255.255 50
>
> access-list 50 permit 150.1.1.0 0.0.0.255
>
>
> In my workbook it has the ACL should be...
>
> access-list 50 permit host 150.1.1.0
>
> Both ways appear to work, but I do not understand why the host option
> works. It has to be some logic I am missing in the ACL, can some one shed
> some light on this for me?
>
> Chris
>
>
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