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Security on Internet Gateway Routers

Which is better to use?:

ACL incoming on serial interface for private addreses (RFC1918).

or

Static route to Null 0

(ex. ip route 10.0.0.0 255.0.0.0 Null 0

I heard that ACLs take up CPUs?

1 REPLY
Anonymous
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Re: Security on Internet Gateway Routers

configuring ACL is the proper way.

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