name: claude-dev description: Trust-less claudebox (resources + isolated NIC) config: limits.cpu: "4" limits.memory: 8GiB devices: eth0: type: nic network: claudenet name: eth0 # Boxes must not reach each other. This is the mechanism that actually does # it: the kernel bridge's port-isolation flag, which stops two isolated # ports exchanging frames at L2. # # It is not an ACL rule, and it cannot be. Incus ACLs are L3/L4, and two # boxes on one bridge are on the same L2 segment — their frames are switched # between ports and never traverse the netfilter path an ACL lives on. That # is why the ACL's drop on 10.0.0.0/8 (which contains claudenet) and its # default ingress drop BOTH looked airtight while box→box was wide open: a # live probe found box A's SYN arriving at box B and B answering with a RST. security.port_isolation: "true" root: type: disk pool: default path: /