[c-nsp] Filtering telnet without ACL

J. Oquendo sil at infiltrated.net
Fri Aug 1 09:19:49 EDT 2008


On Fri, 01 Aug 2008, Joost greene wrote:

> Hello,
> 
> Someone challenged me with a question on how i can filter telnet access to
> one router from all hosts except two of them WITHOUT using access-lists or
> access-line under the VTY? any ideas?
> 
> Regards,
> Joost
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Route map...

ip access-list extended NO_TELNET
 deny tcp any any eq 23
!
route-map BLOCK_TELNET 10
 match ip address NO_TELNET
 set interface Null 0
!
ip local policy route-map BLOCK_TELNET



-- 
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J. Oquendo
SGFA #579 (FW+VPN v4.1) SGFE #574 (FW+VPN v4.1)
CEH/CNDA, CHFI

"Experience hath shewn, that even under the best
forms (of government) those entrusted with power
have, in time, and by slow operations, perverted
it into tyranny." Thomas Jefferson

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