4/28/2023 0 Comments Use sstp-client for macThese packets are special forms of IP packets. For example, IPsec and L2TP use ESP (Encapsulating Security Payload) packets, and PPTP uses GRE (Generic Routing Encapsulation) packets. There protocols were developed in the era before NATs were widely spread. Tunnels of legacy VPN protocols, such as IPsec, L2TP and PPTP, cannot often be established through firewalls, proxy servers and NATs. Not only for purpose of security, but also companies use firewalls, proxies and NATs in order to share the precious IP addresses with many computer users in the office. Generally, in company networks of nowadays, there are firewalls to isolate between the inside network and outside for ensuring security.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |