MAC Filtering

MAC Filtering in context

Security controls span signaling firewalls (SS7/Diameter/GTP screening), transport encryption (IPsec, TLS, PRINS), identity and access on OSS/BSS, and monitoring at both packet and log level. Controls are audited against GSMA FS.11/FS.19/FS.20/FS.36.

Telecom threats range from opportunistic SMS phishing and SIM swap to nation-state grade location tracking. The common thread is that most attacks exploit the inherited trust model of legacy signaling protocols.

To place MAC Filtering in the wider telecom-security picture, review Mediation Device (Lawful Interception), CASB, HTTP/2 Security in 5G, LAN, CLI Spoofing and GSMA Open Gateway: each entry cross-references back to this page so you can walk the topic in either direction.

Related terms

• Mediation Device (Lawful Interception)
• CASB
• HTTP/2 Security in 5G
• LAN
• CLI Spoofing
• GSMA Open Gateway
• Vishing
• Egress

Related topic hubs

• Diameter Attacks S6a IDR/PUR/CLR abuse, subscriber tracking, LTE signaling attacks.
• Telecom Fraud IRSF, Wangiri, SIM box, PBX hacking and CLI spoofing.
• Diameter Security 4G/LTE Diameter threats across IPX/roaming and DEA defenses.
• LTE Security Training Training on 4G/LTE core, Diameter, NAS and RRC security.

More from the TelcoSec Glossary

Browse the full TelcoSec Glossary, the Ultimate Guide to Mobile Network Security, or the P1 Arsenal of telecom-security tools.