mirror of
https://github.com/GNS3/gns3-server.git
synced 2026-10-13 05:55:35 +03:00
b1eb0984bc
The unified veth host end is born admin-down (carrier off until a link attaches), and libpcap cannot open a packet socket on an admin-down interface — its netlink promiscuous-mode transaction returns ENOENT, so 'bridge add_nio_ethernet' failed on every runtime relay link (and would on any relay link at container start). Bring the interface up for the attach; the carrier pass in the caller refines the state afterwards (a suspended NIO sets it back down). Verified live with a direct uBridge probe: attach on a down veth -> ENOENT, after 'link set up' -> OK.