Dell S3100 Command Line Reference Guide for the Series 9.100.0 - Page 193

Version 8.2.1.0 8.1.1.0 7.6.1.0 7.5.1.0 7.4.1.0 6.5.1.0 Description Allows ACL control of fragmented packets for IP (Layer 3) ACLs. Introduced on the E-Series. Introduced on the S-Series. Introduced on the C-Series. Added support for the noncontiguous mask and added the monitor option. Expanded to include the optional QoS order priority for the ACL entry. Usage Information The order option is relevant in the context of the Policy QoS feature only. For more information, see the Quality of Service section in the Dell Networking OS Configuration Guide. When you use the log option, the CP processor logs detail 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 monitor option is relevant in the context of flow-based monitoring only. For more information, see Port Monitoring. The C-Series and S-Series cannot count both packets and bytes, when you enter the count byte options, only bytes are incremented. NOTE: When you configure ACL logging and byte counters simultaneously, byte counters may display an incorrect value. Configure packet counters with logging instead. Related Commands • deny tcp - assign a filter to deny TCP packets. • deny udp - assign a filter to deny UDP packets. • ip access-list extended - create an extended ACL. deny icmp To drop all or specific internet control message protocol (ICMP) messages, configure a filter. Syntax deny icmp {source mask | any | host ip-address} {destination mask | any | host ip-address} [dscp] [count [byte] [order] [fragments] [no-drop] To remove this filter, you have two choices: • Use the no seq sequence-number command if you know the filter's sequence number. • Use the no deny icmp {source mask | any | host ip-address} {destination mask | any | host ip-address} command. Parameters source mask any host ip-address destination dscp count byte order Enter the IP address of the network or host from which the packets were sent. Enter a network mask in /prefix format (/x) or A.B.C.D. The mask, when specified in A.B.C.D format, may be either contiguous or non-contiguous. Enter the keyword any to specify that all routes are subject to the filter. Enter the keyword host then the IP address to specify a host IP address. Enter the IP address of the network or host to which the packets are sent. Enter this keyword dscp to deny a packet based on the DSCP value. The range is from 0 to 63. (OPTIONAL) Enter the keyword count to count packets processed by the filter. (OPTIONAL) Enter the keyword byte to count bytes processed by the filter. (OPTIONAL) Enter the keyword order to specify the QoS priority for the ACL entry. The range is from 0 to 254 (where 0 is the highest priority and 254 is the lowest; lower order numbers have a higher priority) If you did not use the keyword order, the ACLs have the lowest order by default (255). Access Control Lists (ACL) 193