Dell Force10 Z9000 Configuration Manual page 101

Figure 6-7. Command Example: seq
FTOS(config-ext-nacl)#seq 15 deny ip host 112.45.0.0 any log
FTOS(config-ext-nacl)#seq 5 permit tcp 12.1.3.45 0.0.255.255 any
FTOS(config-ext-nacl)#show confi
!
ip access-list extended dilling
seq 5 permit tcp 12.1.0.0 0.0.255.255 any
seq 15 deny ip host 112.45.0.0 any log
FTOS(config-ext-nacl)#
Configure filters without sequence number
If you are creating an extended ACL with only one or two filters, you can let FTOS assign a sequence
number based on the order in which the filters are configured. FTOS assigns filters in multiples of 5.
To configure a filter for an extended IP ACL without a specified sequence number, use any or all of the
following commands in the IP ACCESS LIST mode:
Command Syntax
{ deny | permit } {source mask | any | host
ip-address} [ count [ byte ] | log ] [ order ]
[ monitor] [ fragments ]
{ deny | permit } tcp {source mask] | any |
host ip-address}} [ count [ byte ] | log ]
[ order ] [ monitor] [ fragments ]
{ deny | permit } udp {source mask | any |
host ip-address}} [ count [ byte ] | log ]
[ order ] [ monitor] [ fragments ]
When you use the
many packets match the log entry and at what rate, the CP may become busy as it has to log these packets'
details.
Figure 6-8 illustrates an extended IP ACL in which the sequence numbers were assigned by the software.
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
ACCESS LIST mode displays the two filters with the sequence numbers 5 and 10.
Command Mode
CONFIG-EXT-NACL
CONFIG-EXT-NACL
CONFIG-EXT-NACL
log
keyword, CP processor logs details about the packets that match. Depending on how
Purpose
Configure a deny or permit filter to
examine IP packets.
•
log and monitor options are
supported on E-Series only.
Configure a deny or permit filter to
examine TCP packets.
log and monitor options are
•
supported on E-Series only.
Configure a deny or permit filter to
examine UDP packets.
•
log and monitor options are
supported on E-Series only.
command in the IP
show config
Access Control Lists (ACLs) |
101