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iou: forward data_link_type on capture start so serial pcaps use the correct linktype

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The IOU compute capture/start route received data_link_type in the NodeCapture body but dropped it when calling node.start_capture(), so iou_vm.start_capture always defaulted to DLT_EN10MB -- every IOU serial capture (Cisco HDLC / PPP / Frame Relay) was written as an Ethernet pcap. Dynamips, cloud and the L2 switches already forward this value; IOU was the only serial-capable node that omitted it. One-argument fix: the node method already accepts and forwards data_link_type to 'iol_bridge start_capture', so only the route was missing it.

Verified: IOU serial captures now produce the expected linktype (C_HDLC / PPP_SERIAL / FRELAY) instead of Ethernet.
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YueGuobin 2026-08-07 00:35:39 +08:00
parent deba9f8409
commit 17020b7f7b
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gns3server/api/routes/compute/iou_nodes.py
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@ -288,7 +288,7 @@ async def start_iou_node_capture(
"""
pcap_file_path = os.path.join(node.project.capture_working_directory(), node_capture_data.capture_file_name)
await node.start_capture(adapter_number, port_number, pcap_file_path)
await node.start_capture(adapter_number, port_number, pcap_file_path, node_capture_data.data_link_type)
return {"pcap_file_path": str(pcap_file_path)}