BugZero | Cisco BugID CSCvm75378 - Cat9x00: IPv6 SPAN filter still applied in hardwar...

Loading...

Operational Defect Database

A free repository of operational (non-security) bugs centralized through custom integrations with leading IT vendors.

Product

BugZero Prevent
BugZero Plan
Operational Risk Scoring
Vendor Integrations

Company

Plans
Value Guide
About
Contact us
Legal

Resources

Blog
ServiceNow App
Trust Center
Risk Management
NIST
DORA

Operational Defect Database

A free repository of operational (non-security) bugs centralized through custom integrations with leading IT vendors.

Product

BugZero Prevent
BugZero Plan
Operational Risk Scoring
Vendor Integrations

Company

Plans
Value Guide
About
Contact us
Legal

Resources

Blog
ServiceNow App
Trust Center
Risk Management
NIST
DORA

©2025 BugZero. All Rights Reserved.

Privacy Policy Terms of Service

BugZero | Cisco BugID CSCvm75378 - Cat9x00: IPv6 SPAN filter still applied in hardwar...

ODD
Cisco
CSCvm75378

Cisco - Defect ID: CSCvm75378

Cat9x00: IPv6 SPAN filter still applied in hardware when removing entire monitor session

ODD
Cisco
CSCvm75378

Cisco - Defect ID: CSCvm75378

Cat9x00: IPv6 SPAN filter still applied in hardware when removing entire monitor session

Last updated on February 19th, 2026

BugZero Risk Score
7.7 High

Overall: 7.7

Severity: 8.2

Lifecycle: 9.1

Popularity: 3.7

What is the BugZero Risk Score?

Cisco Integration

Learn more about where this data comes from

Cisco Integration

BugZero Plan

Streamline upgrades with automated vendor bug scrubs

BugZero Plan

BugZero Prevent

Wish you caught this bug sooner? Get proactive today.

BugZero Prevent

Bug Details

Description

Symptom

With IPv6 filter applied to monitor session and entire monitor session is removed via "no monitor session all" or "no monitor session ". When configuring same monitor sessions number, IPv6 ACL is still applied in hardware even though it does not show in configuration

Conditions

With IPv6 filter applied to monitor session and entire monitor session is removed via "no monitor session all" or "no monitor session ". When configuring same monitor sessions number, IPv6 ACL is still applied in hardware even though it does not show in configuration

Workaround

Reapply IPv6 filter and remove. Also can configure new monitor session number

Further Problem Description

Change history

2024-07-09 Added: 16.6.4, 16.9.1

Relevant Products

Click on a version to see all relevant bugs

Affected versions:16.6.4, 16.9.1

Fixed versions: 16.10.1, 16.10.1a, 16.10.1b, 16.10.1c, 16.10.1d, 16.10.1e, 16.10.1f, 16.10.1g, 16.10.1i, 16.10.1s, 16.10.2, 16.10.3, 16.11.1, 16.11.1a, 16.11.1b, 16.11.1c, 16.11.1s, 16.11.2, 16.12.1, 16.12.1a, 16.12.1c, 16.12.1s, 16.12.1t, 16.12.1w, 16.12.1x, 16.12.1y, 16.12.1z, 16.12.2, 16.12.2a, 16.12.2s, 16.12.2t, 16.12.3, 16.12.3a, 16.12.3s, 16.12.4, 16.12.4a, 16.12.5, 16.12.5a, 16.12.5b, 16.12.6, 16.6.10, 16.6.5, 16.6.5a, 16.6.5b, 16.6.6, 16.6.7, 16.6.7a, 16.6.8, 16.6.9, 16.9.2, 16.9.2a, 16.9.2s, 16.9.3, 16.9.3a, 16.9.3h, 16.9.3s, 16.9.4, 16.9.4c, 16.9.5, 16.9.5f, 16.9.6, 16.9.7, 16.9.8, 17.1.1, 17.1.1a, 17.1.1s, 17.1.1t, 17.1.2, 17.1.3, 17.2.1, 17.2.1a, 17.2.1r, 17.2.1v, 17.2.2, 17.2.3, 17.3.1, 17.3.1a, 17.3.1w, 17.3.1x, 17.3.2, 17.3.2a, 17.3.3, 17.3.3a, 17.3.4, 17.3.4a, 17.4.1, 17.4.1a, 17.4.1b, 17.4.2, 17.5.1, 17.5.1a, 17.6.1, 17.6.1a, 3.6.4E_V152_2_E4, Gibraltar-16.10.1

Relevant Products

Click on a version to see all relevant bugs

Affected versions:16.6.4, 16.9.1

Fixed versions: 16.10.1, 16.10.1a, 16.10.1b, 16.10.1c, 16.10.1d, 16.10.1e, 16.10.1f, 16.10.1g, 16.10.1i, 16.10.1s, 16.10.2, 16.10.3, 16.11.1, 16.11.1a, 16.11.1b, 16.11.1c, 16.11.1s, 16.11.2, 16.12.1, 16.12.1a, 16.12.1c, 16.12.1s, 16.12.1t, 16.12.1w, 16.12.1x, 16.12.1y, 16.12.1z, 16.12.2, 16.12.2a, 16.12.2s, 16.12.2t, 16.12.3, 16.12.3a, 16.12.3s, 16.12.4, 16.12.4a, 16.12.5, 16.12.5a, 16.12.5b, 16.12.6, 16.6.10, 16.6.5, 16.6.5a, 16.6.5b, 16.6.6, 16.6.7, 16.6.7a, 16.6.8, 16.6.9, 16.9.2, 16.9.2a, 16.9.2s, 16.9.3, 16.9.3a, 16.9.3h, 16.9.3s, 16.9.4, 16.9.4c, 16.9.5, 16.9.5f, 16.9.6, 16.9.7, 16.9.8, 17.1.1, 17.1.1a, 17.1.1s, 17.1.1t, 17.1.2, 17.1.3, 17.2.1, 17.2.1a, 17.2.1r, 17.2.1v, 17.2.2, 17.2.3, 17.3.1, 17.3.1a, 17.3.1w, 17.3.1x, 17.3.2, 17.3.2a, 17.3.3, 17.3.3a, 17.3.4, 17.3.4a, 17.4.1, 17.4.1a, 17.4.1b, 17.4.2, 17.5.1, 17.5.1a, 17.6.1, 17.6.1a, 3.6.4E_V152_2_E4, Gibraltar-16.10.1

Top Cisco Defects

9.7Defect ID: CSCwe44571
FMC: GEOLOCATION size is causing upgrade failures
9.7Defect ID: CSCvp16482
ASA reloads when establishing simultaneous ASDM sessions
9.7Defect ID: CSCun06260
XE3.13 Gatekeeper Hardening
9.7Defect ID: CSCvf84211
WLC dataplane reloads unexpectedly due to core 0 hung and RML interrupt handling
9.7Defect ID: CSCvf76274
Cisco APs can no longer join the WLC; CAPWAP-3-DTLS_DB_ERR

Ready to prevent the next vendor outage?

Links

Original Vendor Announcement

Cisco Integration

Learn more about where this data comes from

Cisco Integration

BugZero Plan

Streamline upgrades with automated vendor bug scrubs

BugZero Plan

BugZero Prevent

Wish you caught this bug sooner? Get proactive today.

BugZero Prevent