7.8.1.0 - Force10 Networks

To view all configured IP ACLs, use the show ip accounting access-list command (Figure 229) in the
EXEC privilege mode.
Figure 56 Command Example: show ip accounting access-list
Force10#show ip accounting access example interface gig 4/12
Extended IP access list example
seq 10 deny tcp any any eq 111
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 the 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 the IP
ACCESS LIST mode.
Configure an extended IP ACL
Extended IP ACLs filter on source and destination IP addresses, IP host addresses, TCP addresses, TCP
host addresses, UDP addresses, and UDP host addresses.
Since traffic passes through the filter in the order of the filter’s sequence, you can configure the extended
IP ACL by first entering the IP ACCESS LIST mode and then assigning a sequence number to the filter.
To create a filter for packets with a specified sequence number, use these commands in the following
sequence, starting in the CONFIGURATION mode:
Step Command Syntax Command Mode Purpose
1 ip access-list extended
access-list-name
2
seq sequence-number {deny |
permit} {ip-protocol-number |
icmp | ip | tcp | udp}
{source mask | any | host
ip-address} {destination mask |
any | host ip-address}
[operator port [port]] [count
[byte] | ] [order]
CONFIGURATION Enter the IP ACCESS LIST mode by
creating an extended IP ACL.
CONFIG-EXT-NACL Configure a drop or forward filter.
•
104 IP Access Control Lists (ACL), Prefix Lists, and Route-maps