What evidence do auditors commonly ask for on SC.L2-3.13.7 Split Tunneling?

VPN or remote client configuration disabling split tunneling; Evidence the setting is enforced and not user changeable; Coverage across all remote client platforms.

What is the most common gap auditors find on SC.L2-3.13.7?

Split tunneling disabled by policy but user configurable

CMMC 2.0 · System and Communications Protection

`SC.L2-3.13.7` Split Tunneling

Prevent a remote device from holding a connection to organizational systems while simultaneously connecting through another path to external network resources, the split tunneling case.

Source: CMMC 2.0, SC.L2-3.13.7. The statement above is our statement of the clause, read from the published text and cited so you can check it against the official text, not the instrument verbatim. Open CMMC 2.0 in the compliance library.

artefacts

held by a system

at each review

moderate

to go live

Cloud console / configuration management

where the evidence lives

teal = a system already holds it · olive = produced at each review. To go live: easy when half or more of the artefacts are already held by a system, moderate from a quarter to a half, hard below a quarter.

These are the artefacts auditors commonly ask for on this requirement, our guidance rather than text from the standard. Your assessor decides what is sufficient in your context, and asks for samples across the period when a report covers one.

system holds itEvidence a system already holds

VPN or remote client configuration disabling split tunneling · Cloud console / configuration management

periodic reviewEvidence produced at each review

Evidence the setting is enforced and not user changeable · Document repository

governing documentDocuments that govern the control

Coverage across all remote client platforms · Document repository

First move

Start with the 1 of 3 artefacts that already live in a system (Cloud console / configuration management); keep the periodic reviews but log each one as a dated record with a named reviewer.

Common gaps auditors find

Split tunneling disabled by policy but user configurable
Some client platforms or vendor clients still permit it
Exceptions granted for bandwidth with no compensating control

Do this for your whole sheet

Paste the rows you run your controls from and get this mapping for every control at once, with the periodic-review ones flagged and a first move per row. No account for the first run.

Build my evidence sheet

SC.L2-3.13.6 Network Communication by Exception · SC.L2-3.13.8 Data in Transit