RHEL 10 must not have unauthorized IP tunnels configured.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-281339 | RHEL-10-800070 | SV-281339r1167167_rule | CCI-000213 | medium |
| Description | ||||
| IP tunneling mechanisms can be used to bypass network filtering. If tunneling is required, it must be documented with the information system security officer (ISSO). | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 10 Security Technical Implementation Guide | 2026-03-11 | |||
Details
Check Text (C-281339r1167167_chk)
Verify RHEL 10 does not have unauthorized IP tunnels configured.
Determine if the IPsec service is active with the following command:
$ systemctl is-active ipsec
Inactive
If the IPsec service is active, check for configured IPsec connections ("conn"), with the following command:
$ sudo grep -rni conn /etc/ipsec.conf /etc/ipsec.d/
Verify any returned results are documented with the ISSO.
If the IPsec tunnels are active and not approved, this is a finding.
Fix Text (F-85805r1167166_fix)
Configure RHEL 10 to not have unauthorized IP tunnels configured.
Remove all unapproved tunnels from the system, or document them with the ISSO.