Dell S4048-ON, Руководство по настройке

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Example of Applying ACL Rules to Ingress Traffic and Viewing ACL Configuration
To specify ingress, use the
in
keyword. Begin applying rules to the ACL with the
ip access-list extended abcd
command.
To view the access-list, use the
show
command.
Dell(conf)#interface tengigabitethernet 1/1
Dell(conf-if-te1/1)# ip access-group abcd in
Dell(conf-if-te1/1)#show config
!
tengigabitethernet 1/1
no ip address
ip access-group abcd in
no shutdown
Dell(conf-if-te1/1)#end
Dell#configure terminal
Dell(conf)# ip access-list extended abcd
Dell(config-ext-nacl)#permit tcp any any
Dell(config-ext-nacl)#deny icmp any any
Dell(config-ext-nacl)#permit 1.1.1.2
Dell(config-ext-nacl)#end
Dell# show ip accounting access-list
!
Extended Ingress IP access list abcd on tengigabitethernet 1/1
seq 5 permit tcp any any
seq 10 deny icmp any any
seq 15 permit 1.1.1.2
Configure Egress ACLs
Egress ACLs are applied to line cards and affect the traffic leaving the system. Configuring egress ACLs onto physical interfaces
protects the system infrastructure from attack — malicious and incidental — by explicitly allowing only authorized traffic. These
system-wide ACLs eliminate the need to apply ACLs onto each interface and achieves the same results. By localizing target traffic, it
is a simpler implementation.
To restrict egress traffic, use an egress ACL. For example, when a denial of service (DOS) attack traffic is isolated to a specific
interface, you can apply an egress ACL to block the flow from the exiting the box, thus protecting downstream devices.
To create an egress ACL, use the
ip access-group
command in EXEC Privilege mode. The example shows viewing the
configuration, applying rules to the newly created access group, and viewing the access list.
NOTE: VRF based ACL configurations are not supported on the egress traffic.
Example of Applying ACL Rules to Egress Traffic and Viewing ACL Configuration
To specify ingress, use the
out
keyword. Begin applying rules to the ACL with the
ip access-list extended abcd
command. To view the access-list, use the
show
command.
Dell(conf)#interface TenGigabitEthernet 1/1
Dell(conf-if-te-1/1)# ip access-group abcd out
Dell(conf-if-te-1/1)#show config
!
TenGigabitEthernet 1/1
no ip address
ip access-group abcd out
no shutdown
Dell(conf-if-te-1/1)#end
Dell#configure terminal
Dell(conf)# ip access-list extended abcd
Dell(config-ext-nacl)#permit tcp any any
Dell(config-ext-nacl)#deny icmp any any
Dell(config-ext-nacl)#permit 1.1.1.2
Dell(config-ext-nacl)#end
Dell# show ip accounting access-list
!
Extended Ingress IP access list abcd on tengigabitethernet 0/0
seq 5 permit tcp any any
Access Control Lists (ACLs)
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