Outil d'adresse MAC
Validate MAC addresses, convert between separator formats, toggle case, and look up vendor via OUI prefix. Gratuit, privé et 100% côté client.
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Local only
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Utilisation
- Enter a MAC address in any common format.
- Select the output separator format and case.
- View validation result, vendor, and format conversions.
Tâches utilisant cet outil
Construire and inspect network packets
Construct raw network packets pour testing, debugging, et protocol development. Understand Ethernet, IP, et transport layer encapsulation. TÂCHE
Rechercher MAC address vendor (OUI)
Le premier 3 octets de un MAC address (OUI) identifier le manufacturer. Look up vendors pour network device identification et inventory. TÂCHE
Analyser and understand DNS records
DNS records mapper domain names en IPs, mail servers, et autre données. Apprendre Un, AAAA, CNAME, MX, TXT, NS, et SOA record types. TÂCHE
Understand et configure VLANs
VLANs logically segment un physical network en isolated broadcast domains. Apprendre VLAN IDs, tagging (802.1Q), et trunk vs access ports. TÂCHE
Questions fréquentes
- What MAC address formats are accepted?
- Any format with 12 hex digits is accepted, including colon-separated (00:1A:2B:3C:4D:5E), hyphen-separated (00-1A-2B-3C-4D-5E), or no separator (001A2B3C4D5E).
- How does vendor lookup work?
- The first 3 bytes (OUI) are matched against a built-in table of common vendor prefixes. Not all vendors are included.
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