Dear all,
Just having a slight problem getting my head around NAT regarding the
example configurations in the study guides I have.
access-list 1 permit 10.0.0.1 0.0.0.255 (defines list of addresses)
ip nat pool mynatpool 222.2.2.1 222.2.2.254 netmask 255.255.255.0 (defines
pool of inside global
Nat replaces the inside IP with a/the real IP from it's outside pool. It
keeps track of which inside device each NAT'd (is that a word?) packet
belongs to via the port it assigns to the packet when it puts the outside IP
addy on it and sends it.
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Ok, I think I have it now. So in a way the pool of addresses are like a load
of virtual interfaces?
I understand the use of sockets for overloading and how this can enable to
use just one address, it was just the pool thing that confused me a little!
Thanks guys, James.
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To: [EMAIL PROTECTED]
Subject: Confused over NAT [7:65926]
Dear all,
Just having a slight problem getting my head around NAT regarding the
example configurations in the study guides I have.
access-list 1 permit 10.0.0.1 0.0.0.255 (defines list of addresses)
ip nat pool mynatpool 222.2.2.1
[mailto:[EMAIL PROTECTED]
Sent: Friday, March 21, 2003 8:55 AM
To: [EMAIL PROTECTED]
Subject: Confused over NAT [7:65926]
Dear all,
Just having a slight problem getting my head around NAT regarding the
example configurations in the study guides I have.
access-list 1 permit 10.0.0.1
The source address of the packet(host address) is replaced with one of the
addresses in the natpool. That is contained in the header of the packet.
The routing protocol takes care of insuring that the packet gets back to
your WAN interface. Hope this helps.
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