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Display Filter Reference: Layer 2 Tunneling Protocol
Protocol field name: l2tp
Versions: 1.0.0 to 1.6.5
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| Field name | Type | Description | Versions |
|---|---|---|---|
| l2tp.avp.ciscotype | Unsigned integer, 2 bytes | Type | 1.0.0 to 1.6.5 |
| l2tp.avp.hidden | Boolean | Hidden | 1.0.0 to 1.6.5 |
| l2tp.avp.length | Unsigned integer, 2 bytes | Length | 1.0.0 to 1.6.5 |
| l2tp.avp.mandatory | Boolean | Mandatory | 1.0.0 to 1.6.5 |
| l2tp.avp.type | Unsigned integer, 2 bytes | Type | 1.0.0 to 1.6.5 |
| l2tp.avp.vendor_id | Unsigned integer, 2 bytes | Vendor ID | 1.0.0 to 1.6.5 |
| l2tp.ccid | Unsigned integer, 4 bytes | Control Connection ID | 1.0.0 to 1.6.5 |
| l2tp.cookie | Sequence of bytes | Cookie | 1.6.0 to 1.6.5 |
| l2tp.l2_spec_atm | Label | ATM-Specific Sublayer | 1.6.0 to 1.6.5 |
| l2tp.l2_spec_c | Boolean | C-bit | 1.6.0 to 1.6.5 |
| l2tp.l2_spec_def | Label | Default L2-Specific Sublayer | 1.6.0 to 1.6.5 |
| l2tp.l2_spec_docsis_dmpt | Label | DOCSIS DMPT - Specific Sublayer | 1.6.0 to 1.6.5 |
| l2tp.l2_spec_flow_id | Unsigned integer, 1 byte | Flow ID | 1.6.0 to 1.6.5 |
| l2tp.l2_spec_g | Boolean | G-bit | 1.6.0 to 1.6.5 |
| l2tp.l2_spec_s | Boolean | S-bit | 1.6.0 to 1.6.5 |
| l2tp.l2_spec_sequence | Unsigned integer, 3 bytes | Sequence Number | 1.6.0 to 1.6.5 |
| l2tp.l2_spec_t | Boolean | T-bit | 1.6.0 to 1.6.5 |
| l2tp.l2_spec_u | Boolean | U-bit | 1.6.0 to 1.6.5 |
| l2tp.l2_spec_v | Boolean | V-bit | 1.6.0 to 1.6.5 |
| l2tp.length | Unsigned integer, 2 bytes | Length | 1.0.0 to 1.6.5 |
| l2tp.length_bit | Boolean | Length Bit | 1.0.0 to 1.6.5 |
| l2tp.Nr | Unsigned integer, 2 bytes | Nr | 1.0.0 to 1.6.5 |
| l2tp.Ns | Unsigned integer, 2 bytes | Ns | 1.0.0 to 1.6.5 |
| l2tp.offset | Unsigned integer, 2 bytes | Offset | 1.0.0 to 1.6.5 |
| l2tp.offset_bit | Boolean | Offset bit | 1.0.0 to 1.6.5 |
| l2tp.priority | Boolean | Priority | 1.0.0 to 1.6.5 |
| l2tp.res | Unsigned integer, 2 bytes | Reserved | 1.0.0 to 1.6.5 |
| l2tp.seq_bit | Boolean | Sequence Bit | 1.0.0 to 1.6.5 |
| l2tp.session | Unsigned integer, 2 bytes | Session ID | 1.0.0 to 1.6.5 |
| l2tp.sid | Unsigned integer, 4 bytes | Session ID | 1.0.0 to 1.6.5 |
| l2tp.tie_breaker | Unsigned integer, 8 bytes | Tie Breaker | 1.0.0 to 1.6.5 |
| l2tp.tunnel | Unsigned integer, 2 bytes | Tunnel ID | 1.0.0 to 1.6.5 |
| l2tp.type | Unsigned integer, 2 bytes | Type | 1.0.0 to 1.6.5 |
| l2tp.version | Unsigned integer, 2 bytes | Version | 1.0.0 to 1.6.5 |
| lt2p.cookie | Sequence of bytes | Cookie | 1.0.0 to 1.4.11 |
| lt2p.l2_spec_atm | Label | ATM-Specific Sublayer | 1.0.0 to 1.4.11 |
| lt2p.l2_spec_c | Boolean | C-bit | 1.0.0 to 1.4.11 |
| lt2p.l2_spec_def | Label | Default L2-Specific Sublayer | 1.0.0 to 1.4.11 |
| lt2p.l2_spec_docsis_dmpt | Label | DOCSIS DMPT - Specific Sublayer | 1.4.0 to 1.4.11 |
| lt2p.l2_spec_flow_id | Unsigned integer, 1 byte | Flow ID | 1.4.0 to 1.4.11 |
| lt2p.l2_spec_g | Boolean | G-bit | 1.0.0 to 1.4.11 |
| lt2p.l2_spec_s | Boolean | S-bit | 1.0.0 to 1.4.11 |
| lt2p.l2_spec_sequence | Unsigned integer, 3 bytes | Sequence Number | 1.0.0 to 1.4.11 |
| lt2p.l2_spec_t | Boolean | T-bit | 1.0.0 to 1.4.11 |
| lt2p.l2_spec_u | Boolean | U-bit | 1.0.0 to 1.4.11 |
| lt2p.l2_spec_v | Boolean | V-bit | 1.4.0 to 1.4.11 |