Cisco Catalyst SD-WAN Rugged Series Router Configuration Guide, Release 26.x and Later

Feature history of Raw socket

Updated: November 2, 2026

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Describes the raw socket feature and its ability to transport serial data across IP networks using TCP or UDP options. Provides context for configuring this feature on Cisco rugged routers.

Explains that you can transport serial data across IP networks by configuring TCP or UDP options through configuration groups on supported Cisco rugged routers.

Table 1. Feature history
Feature name	Release information	Description
Raw socket	Cisco IOS XE Catalyst SD-WAN Release 17.18.1a Cisco Catalyst SD-WAN Manager Release 20.18.1	You can transport serial data across your IP networks by configuring TCP or UDP options through configuration groups on supported Cisco rugged routers.

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