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# Configuring Protocol Conditions (SRC CLI)

The procedure in this sections shows how to configure general protocol conditions.

- If your condition includes port numbers, use the procedure in Configuring Protocol Conditions with Ports (SRC CLI).
- If your condition consists of a protocol that is assigned with a parameter value, use the procedure in Configuring Protocol Conditions with Parameters (SRC CLI).

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

`

policies group name list name rule name traffic-condition name protocol-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 ;
}

`

To add general protocol conditions to a classify-traffic condition:

1. From configuration mode, enter the general protocol condition configuration. For example:
   `
   user@host# edit policies group dhcp list in rule forward-dhcp traffic-condition client-dhcp protocol-condition
   `
2. Configure the protocol matched by this classify-traffic condition.
   `
   [edit policies group dhcp list in rule forward-dhcp traffic-condition client-dhcp protocol-condition]
   user@host# set protocol protocol
   `
3. Configure the policy to match packets with the protocol that is either equal or not equal to the specified protocol.
   `
   [edit policies group dhcp list in rule forward-dhcp traffic-condition client-dhcp protocol-condition]
   user@host# set protocol-operation protocol-operation
   `
4. (Optional) Configure the value of the IP flags field in the IP header.
   `
   [edit policies group dhcp list in rule forward-dhcp traffic-condition client-dhcp protocol-condition]
   user@host# set ip-flags ip-flags
   `
5. (Optional) Configure the mask that is associated with the IP flag.
   `
   [edit policies group dhcp list in rule forward-dhcp traffic-condition client-dhcp protocol-condition]
   user@host# set ip-flags-mask ip-flags-mask
   `
6. (Optional) Configure the value of the fragment offset field.
   `
   [edit policies group dhcp list in rule forward-dhcp traffic-condition client-dhcp protocol-condition]
   user@host# set fragment-offset fragment-offset
   `
7. (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 dhcp list in rule forward-dhcp traffic-condition client-dhcp protocol-condition]
   user@host# set packet-length packet-length
   `
8. (Optional) Verify your protocol condition configuration.

       [edit policies group dhcp list in rule forward-dhcp traffic-condition client-dhcp protocol-condition]
       user@host# show
       protocol 0;
       protocol-operation 1;
       ip-flags 0;
       ip-flags-mask 0;
       fragment-offset any;

#### Related Topics

- Before You Configure Classify-Traffic Conditions
- Configuring Classify-Traffic Conditions
- Configuring Protocol Conditions (C-Web Interface)

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