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Work item:
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X.sg-cmp
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Subject/title:
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Security guidelines for countering malicious use of proxies in IP spoofing
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Status:
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Approval process:
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TAP
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Type of work item:
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Recommendation
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Version:
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New
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Equivalent number:
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-
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Timing:
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-
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Liaison:
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-
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Supporting members:
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China Unicom, China Mobile, China Telecom
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Summary:
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IP spoofing via proxies has become a significant enduring threat to telecommunication networks and users. Attackers leverage the IP obfuscation and traffic forwarding capabilities of proxy servers to bypass IP-based security defenses, including access control lists, IP whitelists, and traffic audit mechanisms.
Such IP spoofing poses direct threats to individual users and enterprises: it enables attackers to impersonate legitimate entities for data theft, system intrusion, or malicious traffic injection, leading to financial losses and data breaches. For telecommunication organizations and proxy service providers, it wastes network bandwidth and server resources, damages service reputation, and increases operational costs from security incident response and compliance audits.
Further complicating identification is the widespread adoption of proxy services—driven by demands for remote work, cross-border business operations, and privacy protection—this overlap causes malicious proxy behaviors far harder to accurately identify, ultimately disrupting the normal order of network information transmission.
Currently, no universal standard addresses this threat: existing guidelines either ignore IP spoofing via proxies or rely on content-based detection—including deep packet inspection (DPI)—that poses privacy concerns. This draft Recommendation fills this gap by analyzing the implementation process and harms of proxy-assisted IP spoofing, and by providing non-content-based, generalizable countermeasures—including behavioral analysis and threat intelligence correlation. It is suitable for standardization because it addresses a global threat with universally applicable governance methods, thereby ensuring consistent anti-spoofing practices across telecommunication organizations worldwide.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2026-04-02 13:35:11
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Last update:
2026-04-13 10:32:56
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