09-05-2008 08:56 AM - edited 03-03-2019 11:25 PM
Im trying to understand what the following prefix list match would "match"
172.20.255.0/24 le 32
We are implimenting a new network
an example would be
172.20.255.32/255.255.255.248
.33-38 for hosts.
should the prefix statement read
172.20.0.0/16 le 29?
The subnets we are implimenting are
172.20.255.0/255.255.255.248
172.20.255.8/255.255.255.248
172.20.255.16/255.255.255.248
172.20.255.24/255.255.255.248
172.20.255.32/255.255.255.248
09-05-2008 09:27 AM
I'm trying to understand what the following prefix list match would "match"
172.20.255.0/24 le 32
It will match 172.20.255.0 255.255.255.0 subnet.
We are implementing a new network
an example would be
172.20.255.32/255.255.255.248
.33-38 for hosts.
should the prefix statement read
172.20.0.0/16 le 29?
It should be 172.20.255.32/29
The subnets we are implementing are
172.20.255.0/255.255.255.248
172.20.255.8/255.255.255.248
172.20.255.16/255.255.255.248
172.20.255.24/255.255.255.248
172.20.255.32/255.255.255.248
For these subnets it should be 172.20.255.0/27 le 29 ge 29
HTH,
__
Edison.
09-05-2008 10:17 AM
thx..
so basically a permit statment of a prefix list
172.20.255.0/24 le 32
or
172.20.255.32/29
will accomplish the same thing?
but to allow more more subnets
172.20.255.0/27 le 29 ge 29?
Isnt a /27 a .224 address?
09-05-2008 10:24 AM
so basically a permit statment of a prefix list
172.20.255.0/24 le 32
or
172.20.255.32/29
will accomplish the same thing?
Yes, both statements are exact matches.
but to allow more more subnets
172.20.255.0/27 le 29 ge 29?
Isnt a /27 a .224 address?
You want to be able to group .0 to .32 from the list of networks you've provided hence you need the /27.
The le 29 and ge 29 are for the subnet masks 248.
HTH,
__
Edison.
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