03-05-2020 01:43 AM
Hello everyone,
Currently, we want to optimize our ACLs rules on the ASA with good naming.
A week after the injection of the new rules above the old ones, we have extracted the logs.
access-list DMZ:eth2 line 1 extended permit object-group gs-web object n-DMZ object obj-10.1.1.0 (hitcnt=1083198) 0x78eec858
access-list DMZ:eth2 line 1 extended permit tcp 10.2.0.0 255.255.0.0 10.1.1.0 255.255.255.0 eq www (hitcnt=0) 0x1e6338c1
access-list DMZ:eth2 line 1 extended permit tcp 10.2.0.0 255.255.0.0 10.1.1.0 255.255.255.0 eq https (hitcnt=1083198) 0x4a091cb8
access-list DMZ:eth2 line 3 extended permit udp object-group gn-front object-group gn-LDAP eq ntp (hitcnt=479) 0x2da6f6d1
access-list DMZ:eth2 line 3 extended permit udp host 10.2.1.17 host 10.1.1.65 eq ntp (hitcnt=64) 0xf3fed3e5
access-list DMZ:eth2 line 3 extended permit udp host 10.2.1.17 host 10.1.1.45 eq ntp (hitcnt=64) 0x4c610445
access-list DMZ:eth2 line 3 extended permit udp host 10.2.1.18 host 10.1.1.65 eq ntp (hitcnt=351) 0x39136899
access-list DMZ:eth2 line 3 extended permit udp host 10.2.1.18 host 10.1.1.45 eq ntp (hitcnt=0) 0x7cd315c0
There is here the object and object groups
object network n-DMZ
subnet 10.2.0.0 255.255.0.0
object network GUA
host 10.1.1.65
object network KRA
host 10.1.1.45
object-group network gn-LDAP
network-object object GUA
network-object object KRA
object-group network gn-front
network-object object obj-10.2.1.17
network-object object obj-10.2.1.18
object-group service gs-annuaire
service-object tcp-udp destination eq domain
service-object tcp destination eq ldap
object-group service gs-web
service-object tcp destination eq www
service-object tcp destination eq https
My question is,
1- Why the "Hitcnt" number is the same on line 1 ACL
2- The "Hitcnt" number must be equal (=0) on the old ACL on line 3.
Thanks a lot.
03-05-2020 06:19 AM
Do a clear stats on the rules, see what happens!
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