Yea it's a sanity check alright. If you are not alreay insane, NAT will do it. Now to figure out why every time I try to use NAT on the outside in version 12.1.13 it causes the router to reboot ....
Thanks! Paul ----- Original Message ----- From: "Lupi, Guy" To: "'Paul Borghese'" ; Sent: Sunday, March 10, 2002 6:31 PM Subject: RE: NAT concepts [7:37815] > Found this on CCO, I assume the prefix would be the same concept, a sanity > check. Link is at the bottom, HTH. > > Q. Why do I need to specify a subnet mask when configuring a NAT address > pool? > > A. The subnet mask is used to sanity-check the addresses allocated from the > pool (so we don't allocate the subnet broadcast address, for example). The > subnet mask must match the size of the subnet into which you are > translating. > > http://www.cisco.com/warp/public/cc/pd/iosw/ioft/iofwft/prodlit/iosnt_qp.htm > > ~-----Original Message----- > ~From: Paul Borghese [mailto:[EMAIL PROTECTED]] > ~Sent: Sunday, March 10, 2002 5:49 PM > ~To: [EMAIL PROTECTED] > ~Subject: NAT concepts [7:37815] > ~ > ~ > ~Hi, > ~ > ~I am trying to conceptually understand the NAT command: > ~ > ~ip nat pool name start-ip end-ip {netmask netmask | prefix-length > ~prefix-length}[type rotary] > ~ > ~Why do you need to specify the netmask or prefix-length of the > ~network? You > ~are already specifying the IP range. > ~ > ~The NAT function should not need to know the netmask of the > ~network. The > ~address range does not appear in the forwarding table so it > ~does not seem to > ~be used for routing. > ~ > ~Paul Borghese > ~ > ~ > ~ > ~ > ~Report misconduct > ~and Nondisclosure violations to [EMAIL PROTECTED] > ~ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=37849&t=37815 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
