Supermicro SSE-F3548S/SSE-F3548SR Configuration User’s Guide
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SMIS(config-ext-nacl)# deny icmp any any 30
Create a deny IP Extended ACL with ACL name acl_cw3 to deny all ICMP traffic on 172.20.0.0 network.
SMIS# configure terminal
SMIS(config)# ip access-list extended acl_cw3
SMIS(config-ext-nacl)# deny icmp any 172.20.0.0 255.255.0.0
Create a redirect IP Extended ACL to redirect all packets from subnet 172.20.20.X going to IP
172.20.0.1with ICMP message type “Destination Unreachable”to interface fx 0/10.
SMIS# configure terminal
SMIS(config)# ip access-list extended 500
SMIS(config-ext-nacl)# redirect fx 0/10 icmp 172.20.20.0 255.255.255.0 host 172.20.0.1 3
8.3.14
Modifying IP Extended ACLs
To modify a configured IP Extended ACL, follow the same steps used to create an IP Extended ACL. When
users modify an ACL with a deny, permit or redirect rule, the previously configured rule and its
parameters for that ACL will be completely overwritten with the newly provided rules and parameters.
When an ACL rule is modified, it is removed from the hardware ACL table and added back
based on the priority of the rule.
The example below shows an IP Extended ACL rule 100 being created and then modified with different
parameters.
SMIS# configure terminal
SMIS(config)# ip access-list extended 50
SMIS(config-ext-nacl)# deny icmp any 172.10.0.0 255.255.0.0
# Modify this ACL rule 50 to deny ICMP redirect messages instead of all ICMP messages
SMIS# configure terminal
SMIS(config)# ip access-list extended 50
SMIS(config-ext-nacl)# deny icmp any 172.10.0.0 255.255.0.0 5
8.3.15
Removing IP Extended ACLs
Follow the steps below to remove IP Extended ACLs.
Step Command
Description
Step 1 configure terminal
Enters the configuration mode
Step 2 no ip access-list extended { <access-list-number(1- Deletes an IP Extended ACL using theip-