On 24-aug-2007, at 18:44, David Conrad wrote:
If you obtain address space from a service provider and you
decide to change providers, you have (in most cases) two options:
renumber or deploy NAT.
Nonsense.
Sigh. I forgot to be pedantic and use the IETF-mandated terminology.
If you obtain address space from a service provider and you decide
to change providers, you have (in most cases) two options: renumber
your entire infrastructure or deploy *EVIL* NAT and only renumber
the external infrastructure.
Regardless of the theatrics, this statement is still incorrect. As I
said in my previous message, you can't keep the old addresses
internally either so all of this buys you nothing.
NAT is only useful if you feel that renumbering individual machines
is more cumbersome than running NAT and renumbering address
translation mappings (as well as any external stuff in both cases, of
course). Hosts aren't that hard to renumber with DHCP so basically
this only helps you avoid renumbering your routers and other non-host
devices with IP configurations on them.
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