Dell S6000-ON, Руководство по настройке

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number based on the order in which the filters are configured. The software assigns filters in multiples of
5.
Configuring a Standard IP ACL Filter
If you are creating a standard ACL with only one or two filters, you can let Dell Networking OS assign a
sequence number based on the order in which the filters are configured. The software assigns filters in
multiples of five.
1. Configure a standard IP ACL and assign it a unique name.
CONFIGURATION mode
ip access-list standard access-list-name
2. Configure a drop or forward IP ACL filter.
CONFIG-STD-NACL mode
{deny | permit} { source [ mask ] | any | host ip-address } [count [byte] [dscp]
[order] [fragments]
When you use the
log
keyword, the CP logs details about the packets that match. Depending on how
many packets match the log entry and at what rate, the CP may become busy as it has to log these
packets’ details. The following example shows a standard IP ACL in which Dell Networking OS assigns the
sequence numbers. The filters were assigned sequence numbers based on the order in which they were
configured (for example, the first filter was given the lowest sequence number). The
show config
command in IP ACCESS LIST mode displays the two filters with the sequence numbers 5 and 10.
Example of Viewing a Filter Sequence for a Specified Standard ACL and for an Interface
Dell(config-route-map)#ip access standard kigali
Dell(config-std-nacl)#permit 10.1.0.0/16
Dell(config-std-nacl)#show config
!
ip access-list standard kigali
seq 5 permit 10.1.0.0/16
Dell(config-std-nacl)#
To view all configured IP ACLs, use the
show ip accounting access-list
command in EXEC
Privilege mode.
The following examples shows how to view a standard ACL filter sequence for an interface.
Dell#show ip accounting access example interface gig 4/12
Extended IP access list example
seq 15 deny udp any any eq 111
seq 20 deny udp any any eq 2049
seq 25 deny udp any any eq 31337
seq 30 deny tcp any any range 12345 12346
seq 35 permit udp host 10.21.126.225 10.4.5.0 /28
seq 40 permit udp host 10.21.126.226 10.4.5.0 /28
seq 45 permit udp 10.8.0.0 /16 10.50.188.118 /31 range 1812 1813
seq 50 permit tcp 10.8.0.0 /16 10.50.188.118 /31 eq 49
seq 55 permit udp 10.15.1.0 /24 10.50.188.118 /31 range 1812 1813
To delete a filter, enter the
show config
command in IP ACCESS LIST mode and locate the sequence
number of the filter you want to delete. Then use the
no seq sequence-number
command in IP
ACCESS LIST mode.
Access Control Lists (ACLs)
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