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Re: [RRG] Six/One Router Design Clarifications
When two hosts in upgraded edge networks communicate, addresses are
rewritten bilaterally such that the second rewrite is the inverse of
the first. The result is the same as with tunneling. The difference
is that it works without an additional IP header.
Not true. The packet, when traveling in the core, doesn't contain the
original addresses. With tunneling, it does.
And if you have ACLs anywhere in boxes after the translator, they need
to change when the translate addresses change. With tunneling, when
the inner header addresses are EIDs that are portable, you can change
the outer header addresses and the ACLs in the core never have to
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