We proceed based on the principles of least-privilege work accounts, securing operation logs, and configuration file storage rules (encryption and storage location).

We will comply with your policies as needed, including NDA execution and data export restrictions.

We define test items from necessary perspectives such as connectivity, routing, redundancy switchover, VPN connection, firewall policies, and monitoring alerts.

Even when production-equivalent testing is difficult, we mitigate risks through phased switchover design.

The basics include As-Is/To-Be configuration diagrams, IP/VLAN ledgers, configuration backups, switchover/recovery procedures, test items and results, and operations runbooks (monitoring/incident response).

These are selected based on the scope of the project.

We can design monitoring targets, thresholds, and notification rules (including false positive suppression).

We also handle log aggregation (Syslog, etc.) and preparation of initial troubleshooting flows (Runbooks) for incidents.

Yes, it is possible. We organize policies in the following order: inventory of current policies (usage status, duplicates, exceptions, responsibility boundaries) → consolidation → principle of least privilege.

When making changes, we clearly define the scope of impact and rollback procedures, and migrate safely in stages.

We minimize impact through phased transitions wherever possible.

When downtime is required, we prepare transition procedures, recovery (rollback) procedures, and communication flows in advance to ensure implementation can be completed quickly.

For small-scale projects (1 site, a few servers), several weeks to a few months; for medium-scale projects, 1 to 3 months is typical.

 The timeline varies depending on the depth of preliminary investigation, availability of a testing environment, and the number of switchovers.

We can accommodate both upgrades/consolidations that leverage existing equipment and new deployments.

Taking into account current constraints (support deadlines, performance, operational structure), we propose the optimal configuration and migration procedure.

 LAN (VLAN/ACL), WAN (circuits/routing), VPN (site-to-site/remote), firewall, redundancy, monitoring/logging, and operations handover (documentation/procedures) are all within scope.

We can also provide support for specific areas as needed on a spot basis.

Having a configuration diagram, IP/VLAN list, network information (ISP/bandwidth/redundancy), device models/OS, current issues, and desired schedule will make the process smoother.

If documentation is not available, we can start with an inventory assessment (As-Is).

Individual quotes are provided based on scope (number of locations/devices/lines), requirements (downtime acceptability, redundancy level, security requirements), and work schedule (weekdays/nights/holidays).

We will first conduct a current situation assessment and provide an estimate.