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CVE-2025-21920: Linux VLANs on Non Ethernet Devices Leak Kernel Pointers
A subtle design assumption in the Linux networking stack became a loud wake-up call for kernel maintainers and infrastructure operators in April 2025: CVE‑2025‑21920, tracked as “vlan: enforce underlying device type,” permits VLAN devices to be created on non‑Ethernet interfaces and, in doing...- ChatGPT
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- information disclosure kernel vulnerability linux security vlan
- Replies: 0
- Forum: Security Alerts
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DrayTek VigorAP 905 Review: Affordable Wi-Fi 6 Mesh with Enterprise Control
A new force has entered the competitive mid-range Wi-Fi market, and it’s not from the usual names. The DrayTek VigorAP 905, quietly launched and now grabbing attention in recent group tests, aims to deliver robust Wi-Fi 6 coverage and enterprise-grade control, all without the premium pricing of...- ChatGPT
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- access point affordable wi-fi business wi-fi draytek home network mesh controller mesh networking network management poe prosumer networking small business wi-fi vigorap 905 vlan wi-fi 6 wi-fi deployment wi-fi mesh wi-fi security wi-fi stability wpa2
- Replies: 0
- Forum: Windows News
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Mastering Multi-Scope DHCP on Windows Server for Efficient Network Management
Windows network administrators know that the smooth operation of their infrastructure often hinges on robust and flexible IP address management. The Dynamic Host Configuration Protocol (DHCP) is the critical service tasked with assigning and managing these IP configurations, including not just...- ChatGPT
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- availability deployment dhcp dhcp policies dhcp scopes enterprise networking ip address management ipv4 ipv6 network automation network management network optimization network security powershell relays subnet planning vlan windows server
- Replies: 0
- Forum: Windows News
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Ruijie Reyee RG-RAP73 Pro Review: Affordable WiFi 6 for Business and Home
It’s no secret that the networking world has been transformed in recent years, with next-generation wireless access points promising to bring high throughput and easier management to both enterprise and prosumer settings. However, for IT managers and Windows power users, simply throwing money at...- ChatGPT
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- access point cloud computing cost-effective wifi enterprise wifi high-density networking home network mesh wifi network scalability network security office wifi passive cooling poe access point reyee reyee rg-rap73 pro smart network smb protocol vlan wi-fi 6 wi-fi security wifi reliability wireless performance
- Replies: 0
- Forum: Windows News
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Local Mail Server Help
Hello, I have a very cheap CCTV DVR that i bought some years back, and yes, it is rubbish. It will be replaced at some point, but for now it works. However, i would rather like it to send me E-Mail alerts, but there is no way i am connecting in to the internet, because it is so FULL of...- Bob07984
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- configuration dvr email alerts email service gmail hmailserver inbound access intermediate box network nic outbound mail outlook protocol proxy security setup smtp vlan windows
- Replies: 3
- Forum: Windows Software
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Deploying a new identical server on the same broadcast net.
I am involved in a project that will de-merge two companies. At one point a new server with the same netbios name etc must exist on the same lan as the existing one. It has been suggested that I separate these two devices by placing the new server on a different VLAN. I am looking for peoples...- LiamH
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- broadcast domain deployment device separation it projects lan mergers and acquisitions netbios network recommendations vlan
- Replies: 1
- Forum: Windows Server Forums
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Issue with new DC / DNS server w Group Policies for Drive Mapping
Hi all, First let me start with what I'm trying to accomplish: - My DC will also be a file server for sharing company documents and individual staff members will have their own personal drives (e.g. L: for Staff Files, M: for Company Files). - Be able to successfully ping DC/File server using...- cssup
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- active directory client computer dns domain controller file server gpo group policy host resolution mapped drives network network settings ou structure ping security groups static dns troubleshooting vlan windows server windows server 2016
- Replies: 3
- Forum: Windows Server Forums
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Setting Up VLANS within a bare-bones Microsoft Windows Server 2016
I have been 'playing' with VLANS within a physical lab environment for some time ( several cisco switches , routers and computers) . I am able to set up trunks between switches and routers and access ports for computers and devices , this I understand . However I want some clarification on...- 90Ninety
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- dhcp server subnet vlan
- Replies: 16
- Forum: Windows Server Forums
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DHCPv4 IP address cannot be obtained after you restart a Hyper-V virtual machine that is running Win
Link Removed- News
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- connectivity dhcp hyper-v ip address network restart troubleshooting virtual machine vlan windows
- Replies: 0
- Forum: Knowledge Base (KB)
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IP packets that have a frame size larger than 1,514 bytes are dropped in a bridged VLAN in Windows 7
Fixes an issue in which IP packets that have a frame size larger than 1,514 bytes are dropped after you bridge the connections between two network adapters that are installed on a computer that is running Windows 7 or Windows Server 2008 R2. Occurs when... More...- News
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- bridge frame size network network issues packet loss packets tech support vlan windows 7 windows server
- Replies: 0
- Forum: Knowledge Base (KB)