I extensively used site-to-site VPNs, access control, etc., linking remote sites to the central location to create a highly distributed organization.
Cisco Enterprise Routers are stable and reliable, offering robust security features such as firewalls and encryption. While they perform excellently with high traffic and scale well, initial setup can be challenging without experience. Although Cisco offers strong technical support, there are complaints in some regions. High pricing and expensive add-ons increase costs, making the routers less competitive. Additionally, complex licensing structures necessitate additional payments for scalability and features.