Shim6 Protocol
This page provides IP protocol information on the Shim6 Protocol (Shim6) detected by the Netify DPI engine. Please see the IP protocol catalog for information on other IP protocols.
Shim6 lets an IPv6 host use multiple network attachments for fault tolerance and load sharing without changing its upper-layer identity.
IP Protocol Details
- Name
- Shim6 Protocol
- Abbreviation
- Shim6
- Status
- Inactive
- IANA Number
- 140
- IANA Keyword
- Shim6
- Network Policy
- Drop
- Reference
- Shim6 Protocol
IP Protocol Status - Inactive
Shim6 was standardized in RFC 5533 (2009) as a multihoming solution for IPv6 sites, and saw limited adoption, with most multihoming now handled via BGP.
IP Protocol Network Policy
IP protocol #140 - Shim6 Protocol - is typically dropped by edge routers and firewalls. Advanced threat actors and malware families can use these non-standard IP protocol numbers for lateral movement (east-west communication) inside internal networks.