NAT\PAT - netmask v prefix

laidbackfreak

Hi Guys, I'm just starting to get my head round NAT, but need to check something,

when I create the pool as follows :-

ip nat pool test x.x.x.x x.x.x.y prefix-length 29

or
ip nat pool test x.x.x.x x.x.x.y netmask 255.255.255.128

so my question is does it matter if I use the prefix or netmask command ??

gojericho0

nope, both assign a block of ip addresses to the pool