Configuring ICMP Conditions

Use the following configuration statements to add ICMP conditions to a classify-traffic condition:

policies group name list name rule name traffic-condition name icmp-condition {
protocol protocol ;
protocol-operation protocol-operation ;
ip-flags ip-flags ;
ip-flags-mask ip-flags-mask ;
fragment-offset fragment-offset ;
packet-length packet-length ;
icmp-type icmp-type ;
icmp-code icmp-code ;
}

Because the protocol is already set to ICMP, do not change the protocol or protocol-operation options.

To add ICMP conditions to a classify-traffic condition:

  1. From configuration mode, enter the ICMP configuration. For example:
      user@host# edit policies group bod list input rule pr traffic-condition ctc icmp-condition
  2. (Optional) Configure the value of the IP flags field in the IP header.
      [eedit policies group bod list input rule pr traffic-condition ctc icmp-condition]
      user@host# set ip-flags ip-flags
  3. (Optional) Configure the mask that is associated with the IP flag.
      [edit policies group bod list input rule pr traffic-condition ctc icmp-condition]
      user@host# set ip-flags-mask ip-flags-mask
  4. (Optional) Configure the value of the fragment offset field.
      [edit policies group bod list input rule pr traffic-condition ctc icmp-condition]
      user@host# set fragment-offset fragment-offset
  5. (Optional) Configure the packet length on which to match. The length refers only to the IP packet, including the packet header, and does not include any layer 2 encapsulation overhead.
      [edit policies group bod list input rule pr traffic-condition ctc icmp-condition]
      user@host# set packet-length packet-length
  6. (Optional) Configure the ICMP packet type on which to match. The packet type must be supported by the router or CMTS device.
      [edit policies group bod list input rule pr traffic-condition ctc icmp-condition]
      user@host# set icmp-type icmp-type
  7. (Optional) Configure the ICMP code on which to match. The ICMP code must be supported by the router or CMTS device.
      [edit policies group bod list input rule pr traffic-condition ctc icmp-condition]
      user@host# set icmp-code icmp-code
  8. (Optional) Verify the ICMP condition configuration. 
    [edit policies group bod list input rule pr traffic-condition ctc icmp-condition]
user@host# show 
protocol icmp;
protocol-operation 1;
ip-flags ipFlags;
ip-flags-mask ipFlagsMask;
fragment-offset ipFragOffset;
icmp-type icmpType;
icmp-code icmpCode;
    

    9.