What is difference between standard and extended access-list

Answer Posted / shahin

Difference between Standard ACL & Extended ACL -

a) In Standard ACL, filtering is based on source IP address.
where as in extended ACL, filtering is bases on Source IP
address, Destination IP address, Protocol Type, Source Port
Number & Destination Port Number.

b) Standard ACL are used to block particular host or sub
network. where as Extended ACL is used to block particular
services.

c)Standard ACL is implemented as possible closer to
destination. where as Extended ACL is implemented as
possible closer to source.

d) Standard ACL is created from 1 - 99 & extended range 1300
- 1999. where as Extended ACL is created from 100 - 199 &
extended range 2000 - 2699.

e) In Standard ACL, two communication will be blocked, where
as in Extended ACL, one way communication will be blocked.

f) In Standard ACL, all services will be blocked. Where as
in Extended ACL, particular services wil be blocked.


Hope this much of difference will help u guys. Keep posting
new question plzzzz....!!!

Thanking you
Shahin

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