PC(172.16.13.1) ---- switch (GW.100) ----- PC (172.16.14.10)
From PC 172.16.14.10, I can ping PC 172.16.13.1 when the dynamic entry has NOT been activated with the autocommand:
> ping from PC 172.16.14.10 to PC 172.16.13.1 WORKS ! WRONG BEHAVIOUR ! WHY IS NOT BLOCKED !
> ping from PC 172.16.14.10 to 172.16.13.100 or 172.16.14.100 fail (RIGHT BEHAVIOUR).
Only traffic to IPs on switch are blocked ... any communication to IPs outside switch is allowed even if the dynamic entry has not been activated!
If I activate the entry also communication to IP on switch (.100) works ...
Switch#sh access-l 101 Extended IP access list 101 10 Dynamic test permit ip any any 20 deny ip any any (164 matches)
Switch#sh ip arp vl 10 Protocol Address Age (min) Hardware Addr Type Interface Internet 172.16.13.1 5 0004.764c.7eb2 ARPA Vlan10 Internet 172.16.13.100 - c84c.7585.c341 ARPA Vlan10 Switch#sh ip arp vl 20 Protocol Address Age (min) Hardware Addr Type Interface Internet 172.16.14.10 0 0026.9e2c.cbc4 ARPA Vlan20 Internet 172.16.14.100 - c84c.7585.c342 ARPA Vlan20
I opened a case: dynamic ACL (lock and key) IS NOT SUPPORTED ON 3750, 3750E, 3750X ....
SEE BUG ID : CSCsv63203
no plans to support it >> see doc below !
Configuring IPv4 ACLs
Configuring IP v4ACLs on the switch is the same as configuring IPv4 ACLs on other Cisco switches and routers. The process is briefly described here. For more detailed information on configuring ACLs, see the "Configuring IP Services" section in the "IP Addressing and Services" chapter of the Cisco IOS IP Configuration Guide, Release 12.2. For detailed information about the commands, see the Cisco IOS IP Command Reference, Volume 1 of 3: Addressing and Services, Release 12.2.
The switch does not support these Cisco IOS router ACL-related features:
•Non-IP protocol ACLs (see Table 36-1) or bridge-group ACLs
•Inbound and outbound rate limiting (except with QoS ACLs)
•Reflexive ACLs or dynamic ACLs (except for some specialized dynamic ACLs used by the switch clustering feature)
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