Display Filter Reference: Layer 2 Tunneling Protocol

Protocol field name: l2tp

Versions: 1.0.0 to 2.6.1

Back to Display Filter Reference

Field name Description Type Versions
l2tp.avp.advisory_msg Advisory Msg Character string 1.12.0 to 2.6.1
l2tp.avp.alignment_errors Alignment Errors Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.analog_access_supported Analog Access Supported Boolean 1.12.0 to 2.6.1
l2tp.avp.analog_bearer_type Analog Bearer Type Boolean 1.12.0 to 2.6.1
l2tp.avp.assigned_control_conn_id Assigned Control Connection ID Unsigned integer, 4 bytes 1.8.0 to 2.6.1
l2tp.avp.assigned_cookie Assigned Cookie Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.assigned_session_id Assigned Session ID Unsigned integer, 2 bytes 1.8.0 to 2.6.1
l2tp.avp.assigned_tunnel_id Assigned Tunnel ID Unsigned integer, 2 bytes 1.8.0 to 2.6.1
l2tp.avp.async_framing_supported Async Framing Supported Boolean 1.12.0 to 2.6.1
l2tp.avp.async_framing_type Async Framing Type Boolean 1.12.0 to 2.6.1
l2tp.avp.broadbandtype Type Unsigned integer, 2 bytes 2.2.0 to 2.6.1
l2tp.avp.buffer_overruns Buffer Overruns Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.cablelabstype Type Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.call_serial_number Call Serial Number Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.called_number Called Number Character string 1.10.0 to 2.6.1
l2tp.avp.calling_number Calling Number Character string 1.10.0 to 2.6.1
l2tp.avp.cause_code Cause Code Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.cause_code_direction Direction Unsigned integer, 1 byte 1.12.0 to 2.6.1
l2tp.avp.cause_code_message Message Character string 1.12.0 to 2.6.1
l2tp.avp.cause_msg Cause Msg Unsigned integer, 1 byte 1.12.0 to 2.6.1
l2tp.avp.chap_challenge CHAP Challenge Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.chap_challenge_response CHAP Challenge Response Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.circuit_status Circuit Status Boolean 1.12.0 to 2.6.1
l2tp.avp.circuit_type Circuit Type Boolean 1.12.0 to 2.6.1
l2tp.avp.ciscotype Type Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.avp.connect_speed Connect Speed Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.control_protocol_number Control Protocol Number Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.crc_errors CRC Errors Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.csu Connect Speed Update Label 2.2.0 to 2.6.1
l2tp.avp.csu.current_rx_speed Current RX Connect Speed Unsigned integer, 4 bytes 2.2.0 to 2.6.1
l2tp.avp.csu.current_rx_speed64 Current RX Connect Speed Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.avp.csu.current_tx_speed Current TX Connect Speed Unsigned integer, 4 bytes 2.2.0 to 2.6.1
l2tp.avp.csu.current_tx_speed64 Current TX Connect Speed Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.avp.csu.res Reserved Unsigned integer, 2 bytes 2.2.0 to 2.6.1
l2tp.avp.data_sequencing Data Sequencing Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.digital_access_supported Digital Access Supported Boolean 1.12.0 to 2.6.1
l2tp.avp.digital_bearer_type Digital Bearer Type Boolean 1.12.0 to 2.6.1
l2tp.avp.disconnect_code Disconnect Code Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.ericssontype Type Unsigned integer, 2 bytes 2.2.0 to 2.6.1
l2tp.avp.error_code Error code Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.error_message Error Message Character string 1.12.0 to 2.6.1
l2tp.avp.firmware_revision Firmware Revision Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.framing_errors Framing Errors Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.hardware_overruns Hardware Overruns Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.hidden Hidden Boolean 1.0.0 to 2.6.1
l2tp.avp.host_name Host Name Character string 1.12.0 to 2.6.1
l2tp.avp.initial_received_lcp_confreq Initial Received LCP CONFREQ Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.last_received_lcp_confreq Last Received LCP CONFREQ Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.last_sent_lcp_confreq Last Sent LCP CONFREQ Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.layer2_specific_sublayer Layer2 Specific Sublayer Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.length Length Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.avp.local_session_id Local Session ID Unsigned integer, 4 bytes 1.8.0 to 2.6.1
l2tp.avp.mandatory Mandatory Boolean 1.0.0 to 2.6.1
l2tp.avp.maximum_bps Maximum BPS Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.message_digest Message Digest Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.message_type Message Type Unsigned integer, 2 bytes 1.8.0 to 2.6.1
l2tp.avp.minimum_bps Minimum BPS Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.nonce Nonce Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.physical_channel Physical Channel Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.preferred_language Preferred Language Character string 1.12.0 to 2.6.1
l2tp.avp.private_group_id Private Group ID Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.protocol_revision Revision Unsigned integer, 1 byte 1.12.0 to 2.6.1
l2tp.avp.protocol_version Version Unsigned integer, 1 byte 1.12.0 to 2.6.1
l2tp.avp.proxy_authen_challenge Proxy Authen Challenge Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.proxy_authen_id Proxy Authen ID Unsigned integer, 1 byte 1.12.0 to 2.6.1
l2tp.avp.proxy_authen_name Proxy Authen Name Character string 1.12.0 to 2.6.1
l2tp.avp.proxy_authen_response Proxy Authen Response Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.proxy_authen_type Proxy Authen Type Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.pseudowire_type Pseudowire Type Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.pw_type PW Type Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.random_vector Random Vector Sequence of bytes 1.12.0 to 2.6.1
l2tp.avp.receive_accm Receive ACCM Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.receive_window_size Receive Window Size Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.avp.remote_end_id Remote End ID Character string 1.12.0 to 2.6.1
l2tp.avp.remote_session_id Remote Session ID Unsigned integer, 4 bytes 1.8.0 to 2.6.1
l2tp.avp.router_id Router ID Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.rx_connect_speed Rx Connect Speed Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.rx_connect_speed_v3 Rx Connect Speed v3 Unsigned integer, 8 bytes 1.12.0 to 2.6.1
l2tp.avp.send_accm Send ACCM Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.sub_address Sub-Address Character string 1.12.0 to 2.6.1
l2tp.avp.sync_framing_supported Sync Framing Supported Boolean 1.12.0 to 2.6.1
l2tp.avp.sync_framing_type Sync Framing Type Boolean 1.12.0 to 2.6.1
l2tp.avp.time_out_errors Time-out Errors Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.avp.tx_connect_speed_v3 Tx Connect Speed v3 Unsigned integer, 8 bytes 1.12.0 to 2.6.1
l2tp.avp.type AVP Type Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.avp.vendor_id Vendor ID Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.avp.vendor_name Vendor Name Character string 1.12.0 to 2.6.1
l2tp.avp_length.bad Bad AVP length Label 2.0.0 to 2.6.1
l2tp.broadband.access_loop_encapsulation Access Loop Encapsulation Label 2.2.0 to 2.6.1
l2tp.broadband.access_loop_encapsulation.data_link Data Link Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.broadband.access_loop_encapsulation.enc1 Encaps 1 Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.broadband.access_loop_encapsulation.enc2 Encaps 2 Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.broadband.actual_dr_down Actual Data Rate Downstream Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.broadband.actual_dr_up Actual Data Rate Upstream Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.broadband.actual_interleaving_delay_down Actual Interleaving Dalay Downstream Unsigned integer, 4 bytes 2.2.0 to 2.6.1
l2tp.broadband.actual_interleaving_delay_up Actual Interleaving Dalay Upstream Unsigned integer, 4 bytes 2.2.0 to 2.6.1
l2tp.broadband.agent_circuit_id Agent Circuit ID Character string 2.2.0 to 2.6.1
l2tp.broadband.agent_remote_id Agent Remote ID Character string 2.2.0 to 2.6.1
l2tp.broadband.ancp_access_line_type ANCP Access Line Type Unsigned integer, 4 bytes 2.2.0 to 2.6.1
l2tp.broadband.attainable_dr_down Attainable Data Rate Downstream Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.broadband.attainable_dr_up Attainable Data Rate Upstream Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.broadband.iwf_session IWF Session Unsigned integer, 4 bytes 2.2.0 to 2.6.1
l2tp.broadband.maximum_dr_down Maximum Data Rate Downstream Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.broadband.maximum_dr_up Maximum Data Rate Upstream Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.broadband.maximum_interleaving_delay_down Maximum Interleaving Dalay Downstream Unsigned integer, 4 bytes 2.2.0 to 2.6.1
l2tp.broadband.maximum_interleaving_delay_up Maximum Interleaving Dalay Upstream Unsigned integer, 4 bytes 2.2.0 to 2.6.1
l2tp.broadband.minimum_dr_down Minimum Data Rate Downstream Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.broadband.minimum_dr_down_low_power Minimum Data Rate Downstream Low-Power Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.broadband.minimum_dr_up Minimum Data Rate Upstream Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.broadband.minimum_dr_up_low_power Minimum Data Rate Upstream Low-Power Unsigned integer, 8 bytes 2.2.0 to 2.6.1
l2tp.cablel.frequency Frequency Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.cablel.l_bit L(lock bit) Boolean 1.12.0 to 2.6.1
l2tp.cablel.m M Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.cablel.modulation Modulation Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.cablel.n N Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.cablel.tsid_group_id TSID Group ID Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.ccid Control Connection ID Unsigned integer, 4 bytes 1.0.0 to 2.6.1
l2tp.cisco.assigned_control_connection_id Assigned Control Connection ID Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.cisco.assigned_cookie Assigned Cookie Sequence of bytes 1.12.0 to 2.6.1
l2tp.cisco.circuit_status Circuit Status Boolean 1.12.0 to 2.6.1
l2tp.cisco.circuit_type Circuit Type Boolean 1.12.0 to 2.6.1
l2tp.cisco.draft_avp_version Draft AVP Version Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.cisco.interface_mtu Interface MTU Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.cisco.local_session_id Local Session ID Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.cisco.message_digest Message Digest Sequence of bytes 1.12.0 to 2.6.1
l2tp.cisco.nonce Nonce Sequence of bytes 1.12.0 to 2.6.1
l2tp.cisco.pseudowire_type Pseudowire Type Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.cisco.pw_type PW Type Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.cisco.remote_end_id Remote End ID Character string 1.12.0 to 2.6.1
l2tp.cisco.remote_session_id Remote Session ID Unsigned integer, 4 bytes 1.12.0 to 2.6.1
l2tp.cisco.tie_breaker Tie Breaker Unsigned integer, 8 bytes 1.12.0 to 2.6.1
l2tp.cookie Cookie Sequence of bytes 1.6.0 to 2.6.1
l2tp.ericsson.abis_lower_mode Abis Lower Type Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.ericsson.conn_type Connection Type Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.ericsson.crc32_en CRC32 Enabled Boolean 2.2.0 to 2.6.1
l2tp.ericsson.crc32_enable CRC32 Enabled Boolean 2.2.0 to 2.6.1
l2tp.ericsson.gcg.bundle_tout TCG Bundling Timeout (ms) Unsigned integer, 1 byte 2.4.0 to 2.6.1
l2tp.ericsson.map_ssc Super Channel Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.ericsson.map_tei_high TEI Range Highest Value Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.ericsson.map_tei_low TEI Range Lowest Value Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.ericsson.msg_type Ericsson Message Type Unsigned integer, 2 bytes 2.2.0 to 2.6.1
l2tp.ericsson.num_maps Number of TEI-SC Maps Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.ericsson.overload_thresh Overload Threshold in 0.1% Unsigned integer, 2 bytes 2.2.0 to 2.6.1
l2tp.ericsson.stn_name STN Name Character string 2.2.0 to 2.6.1
l2tp.ericsson.tc_group_id Transport Config Group ID Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.ericsson.tc_num_groups Number of Transport Config Groups Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.ericsson.tc_num_sapi Number of SAPIs in Transport Group Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.ericsson.tcg.bundle_max_pkt TCG Bundling Max Packet Size Unsigned integer, 2 bytes 2.4.0 to 2.6.1
l2tp.ericsson.tcg_dscp TCG DSCP Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.ericsson.tcg_ip TCG IP Address IPv4 address 2.2.0 to 2.6.1
l2tp.ericsson.tcg_sapi TCG SAPI Unsigned integer, 1 byte 2.2.0 to 2.6.1
l2tp.ericsson.ver_2 Version (2) Unsigned integer, 4 bytes 2.2.0 to 2.6.1
l2tp.ericsson.ver_3 Version (3) Unsigned integer, 4 bytes 2.2.0 to 2.6.1
l2tp.ericsson.ver_pref Preferred/Chosen Version Unsigned integer, 4 bytes 2.2.0 to 2.6.1
l2tp.incorrect_digest Incorrect Digest Label 1.12.0 to 2.6.1
l2tp.l2_spec_atm ATM-Specific Sublayer Label 1.6.0 to 2.6.1
l2tp.l2_spec_c C-bit Boolean 1.6.0 to 2.6.1
l2tp.l2_spec_def Default L2-Specific Sublayer Label 1.6.0 to 2.6.1
l2tp.l2_spec_docsis_dmpt DOCSIS DMPT - Specific Sublayer Label 1.6.0 to 2.6.1
l2tp.l2_spec_flow_id Flow ID Unsigned integer, 1 byte 1.6.0 to 2.6.1
l2tp.l2_spec_g G-bit Boolean 1.6.0 to 2.6.1
l2tp.l2_spec_h H-bits Unsigned integer, 1 byte 2.0.0 to 2.6.1
l2tp.l2_spec_s S-bit Boolean 1.6.0 to 2.6.1
l2tp.l2_spec_sequence Sequence Number Unsigned integer, 3 bytes 1.6.0 to 2.6.1
l2tp.l2_spec_t T-bit Boolean 1.6.0 to 2.6.1
l2tp.l2_spec_u U-bit Boolean 1.6.0 to 2.6.1
l2tp.l2_spec_v V-bit Boolean 1.6.0 to 2.6.1
l2tp.lapd_info LAPD info Label 2.0.0 to 2.6.1
l2tp.length Length Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.length_bit Length Bit Boolean 1.0.0 to 2.6.1
l2tp.Nr Nr Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.Ns Ns Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.offset Offset Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.offset_bit Offset bit Boolean 1.0.0 to 2.6.1
l2tp.offset_padding Offset Padding Label 2.0.0 to 2.6.1
l2tp.priority Priority Boolean 1.0.0 to 2.6.1
l2tp.res Reserved Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.result_code Result code Unsigned integer, 2 bytes 1.12.0 to 2.6.1
l2tp.seq_bit Sequence Bit Boolean 1.0.0 to 2.6.1
l2tp.session Session ID Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.session_id Packet Type Unsigned integer, 4 bytes 2.0.0 to 2.6.1
l2tp.sid Session ID Unsigned integer, 4 bytes 1.0.0 to 2.6.1
l2tp.tie_breaker Tie Breaker Unsigned integer, 8 bytes 1.0.0 to 2.6.1
l2tp.tunnel Tunnel ID Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.type Type Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.vendor_specific_avp_data Vendor-Specific AVP data Label 2.0.0 to 2.6.1
l2tp.version Version Unsigned integer, 2 bytes 1.0.0 to 2.6.1
l2tp.zero_length_bit_message Zero Length Bit message Label 2.0.0 to 2.0.16
l2tp.zero_length_body_message Zero Length Body message Label 2.2.0 to 2.6.1
lt2p.cookie Cookie Sequence of bytes 1.0.0 to 1.4.15
lt2p.l2_spec_atm ATM-Specific Sublayer Label 1.0.0 to 1.4.15
lt2p.l2_spec_c C-bit Boolean 1.0.0 to 1.4.15
lt2p.l2_spec_def Default L2-Specific Sublayer Label 1.0.0 to 1.4.15
lt2p.l2_spec_docsis_dmpt DOCSIS DMPT - Specific Sublayer Label 1.4.0 to 1.4.15
lt2p.l2_spec_flow_id Flow ID Unsigned integer, 1 byte 1.4.0 to 1.4.15
lt2p.l2_spec_g G-bit Boolean 1.0.0 to 1.4.15
lt2p.l2_spec_s S-bit Boolean 1.0.0 to 1.4.15
lt2p.l2_spec_sequence Sequence Number Unsigned integer, 3 bytes 1.0.0 to 1.4.15
lt2p.l2_spec_t T-bit Boolean 1.0.0 to 1.4.15
lt2p.l2_spec_u U-bit Boolean 1.0.0 to 1.4.15
lt2p.l2_spec_v V-bit Boolean 1.4.0 to 1.4.15
Go Beyond with Riverbed Technology

Riverbed is Wireshark's primary sponsor and provides our funding. They also make great products that fully integrate with Wireshark.

I have a lot of traffic...

ANSWER: SteelCentral™ Packet Analyzer PE
  • • Visually rich, powerful LAN analyzer
  • • Quickly access very large pcap files
  • • Professional, customizable reports
  • • Advanced triggers and alerts
Learn More

Buy Now

No, really, I have a LOT of traffic…

ANSWER: SteelCentral™ NetShark appliance
  • • Troubleshoot problems faster
  • • Quickly identify the applications running on your network
  • • Monitor your virtual machine traffic
Learn More