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Display Filter Reference: Generic Routing Encapsulation
Protocol field name: gre
Versions: 1.0.0 to 1.6.5
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| Field name | Type | Description | Versions |
|---|---|---|---|
| gre.3ggp2_di | Boolean | Duration Indicator | 1.0.0 to 1.6.5 |
| gre.3ggp2_fci | Boolean | Flow Control Indicator | 1.0.0 to 1.6.5 |
| gre.3ggp2_sdi | Boolean | SDI/DOS | 1.0.0 to 1.6.5 |
| gre.ack_number | Unsigned integer, 4 bytes | Acknowledgment Number | 1.6.0 to 1.6.5 |
| gre.checksum | Unsigned integer, 2 bytes | Checksum | 1.6.0 to 1.6.5 |
| gre.flags.ack | Boolean | Acknowledgment | 1.6.0 to 1.6.5 |
| gre.flags.checksum | Boolean | Checksum Bit | 1.6.0 to 1.6.5 |
| gre.flags.key | Boolean | Key Bit | 1.6.0 to 1.6.5 |
| gre.flags.recursion_control | Unsigned integer, 2 bytes | Recursion control | 1.6.0 to 1.6.5 |
| gre.flags.reserved | Unsigned integer, 2 bytes | Flags (Reserved) | 1.6.0 to 1.6.5 |
| gre.flags.routing | Boolean | Routing Bit | 1.6.0 to 1.6.5 |
| gre.flags.sequence_number | Boolean | Sequence Number Bit | 1.6.0 to 1.6.5 |
| gre.flags.strict_source_route | Boolean | Strict Source Route Bit | 1.6.0 to 1.6.5 |
| gre.flags.version | Unsigned integer, 2 bytes | Version | 1.6.0 to 1.6.5 |
| gre.flags_and_version | Unsigned integer, 2 bytes | Flags and Version | 1.6.0 to 1.6.5 |
| gre.ggp2_3ggp2_seg | Unsigned integer, 2 bytes | Type | 1.0.0 to 1.6.5 |
| gre.ggp2_attrib | Label | 3GGP2 Attributes | 1.6.0 to 1.6.5 |
| gre.ggp2_attrib_id | Unsigned integer, 1 byte | Type | 1.0.0 to 1.6.5 |
| gre.ggp2_attrib_length | Unsigned integer, 1 byte | Length | 1.0.0 to 1.6.5 |
| gre.ggp2_flow_disc | Sequence of bytes | Flow ID | 1.0.0 to 1.6.5 |
| gre.key | Unsigned integer, 4 bytes | Key | 1.0.0 to 1.6.5 |
| gre.key.call_id | Unsigned integer, 2 bytes | Call ID | 1.6.0 to 1.6.5 |
| gre.key.payload_length | Unsigned integer, 2 bytes | Payload Length | 1.6.0 to 1.6.5 |
| gre.offset | Unsigned integer, 2 bytes | Offset | 1.6.0 to 1.6.5 |
| gre.proto | Unsigned integer, 2 bytes | Protocol Type | 1.0.0 to 1.6.5 |
| gre.routing | Label | Routing | 1.6.0 to 1.6.5 |
| gre.routing.address_family | Unsigned integer, 2 bytes | Address Family | 1.6.0 to 1.6.5 |
| gre.routing.information | Sequence of bytes | Routing Information | 1.6.0 to 1.6.5 |
| gre.routing.src_length | Unsigned integer, 1 byte | SRE Length | 1.6.0 to 1.6.5 |
| gre.routing.sre_offset | Unsigned integer, 1 byte | SRE Offset | 1.6.0 to 1.6.5 |
| gre.sequence_number | Unsigned integer, 4 bytes | Sequence Number | 1.6.0 to 1.6.5 |
| gre.wccp.alternative_bucket | Unsigned integer, 1 byte | Alternative Bucket | 1.6.0 to 1.6.5 |
| gre.wccp.alternative_bucket_used | Boolean | Alternative bucket used | 1.6.0 to 1.6.5 |
| gre.wccp.dynamic_service | Boolean | Dynamic Service | 1.6.0 to 1.6.5 |
| gre.wccp.primary_bucket | Unsigned integer, 1 byte | Primary Bucket | 1.6.0 to 1.6.5 |
| gre.wccp.redirect_header | Label | Redirect Header | 1.6.0 to 1.6.5 |
| gre.wccp.service_id | Unsigned integer, 1 byte | Service ID | 1.6.0 to 1.6.5 |