feat: Add warning when macvlan parent is a bridge (#1153)

      exit 29

    fi

    if uname -a | grep -Eqi 'unraid|truenas'; then

      # Check if host exposes the bridge-nf sysctl

      # (only visible if br_netfilter is loaded and /proc/sys is accessible)

      BNF="/proc/sys/net/bridge/bridge-nf-call-iptables"

      if [[ -r "$BNF" ]] && [[ "$(cat "$BNF")" != "0" ]]; then

        warn "detected net.bridge.bridge-nf-call-iptables=1 on the host, external LAN clients will not be able to reach this container's ports."

        warn "you can fix this issue by running 'sysctl -w net.bridge.bridge-nf-call-iptables=0' on the host (persist in /etc/sysctl.d/)."

      fi

    fi

  else

    if [[ "$IP" != "172."* && "$IP" != "10.8"* && "$IP" != "10.9"* ]]; then