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en:verejne:sit:ethernet [09.03.2024 13:20] – parity - one device per user Karel Kopecký | en:verejne:sit:ethernet [09.03.2024 13:35] – [How to find a MAC address] Karel Kopecký | ||
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- | p{{indexmenu_n> | + | {{indexmenu_n> |
====== Cable connection ====== | ====== Cable connection ====== | ||
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===== Security ===== | ===== Security ===== | ||
+ | |||
+ | <note warning> | ||
+ | Your cable-connected device has a public IPv4 address,\\ | ||
+ | __**always use a properly configured firewall!**__ | ||
+ | </ | ||
+ | |||
All devices connected with an Ethernet cable get not only an IPv6 address, but a **public IPv4 address** as well, it is therefore necessary to **correctly configure the firewall** on such devices. Alas, people do not, so, unfortunately, | All devices connected with an Ethernet cable get not only an IPv6 address, but a **public IPv4 address** as well, it is therefore necessary to **correctly configure the firewall** on such devices. Alas, people do not, so, unfortunately, | ||
^ Service | ^ Service | ||
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If you need to have one of these ports open, please visit us during the office hours or send us an email. | If you need to have one of these ports open, please visit us during the office hours or send us an email. | ||
- | ===== Installation manuals | + | ===== How to find a MAC address |
+ | |||
+ | A MAC address is an unique identifier of a network device. It is commonly written as a hexadecimal number, which may look for instance like this: | ||
+ | |||
+ | '' | ||
+ | |||
+ | {{indexmenu>: | ||
- | {{indexmenu>: | + | If you fail in finding your devices MAC address, come visit us during office and bring your device with you, we are happy to help you. Sometimes, you may find it on the device itself, or it's packaging. On devices with menus, it's commonly found in sections called " |