mtu

  1. CVE-2025-68363: Linux BPF MTU Check Fix for skb Transport Header Safety

    A kernel-level bug in the Linux BPF helper bpf_skb_check_mtu recently received a formal CVE (CVE-2025-68363) after maintainers landed a targeted fix: the helper assumed skb->transport_header was always valid when the BPF_MTU_CHK_SEGS flag was used, but that field can be unset in some paths —...

  2. Packet loss occurs when MTU is below 576 and PMTU discovery is enabled in Windows

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    • News
    • Thread
    • configuration connectivity mtu network issues packet loss performance pmtu support troubleshooting windows
    • Replies: 0
    • Forum: Knowledge Base (KB)

  3. New VPN connections establish a session that has a smaller MTU value than expected in Windows Server

    Fixes an issue in which all new VPN connections establish a session that has a smaller MTU value than expected in Windows Server 2008 R2 or in Windows 7 Link Removed
    • News
    • Thread
    • connection fix issues mtu network sessions vpn windows 7 windows server
    • Replies: 0
    • Forum: Knowledge Base (KB)
  4. E

    Windows 7 intermittent problem with RDP over IPSEC Lan2LAN VPN

    Hello, I think somebody should have encountered this but somehow i can't find a relative thread or document regarding our problem. Let start with a network layout. In our company network we have 3 gateways. Default gateway is a ISA 2006 server. We don't use the isa client so we're all Secure...
    • evdzon
    • Thread
    • connection customer service disconnect gateway ipsec isa server mtu network rdp routing staff static routes technical issues troubleshooting tunneling vpn windows 7 zyxel
    • Replies: 1
    • Forum: Windows Networking

  5. Windows Vista A few technical options to try if you experience low throughput

    I don't know if I mentioned these here in the past, but I will list them so you guys can see if it makes a difference for you as well. These commands should be implemented in the Administrators Command Prompt (Terminal) as the Administrator. These commnands pertain to throughput between...
    • n9nu
    • Thread
    • bandwidth batch file command prompt configuration ctcp ecn file transfer internet latency mtu nagle algorithm network optimization p2p performance router settings tcp/ip throughput windows vista
    • Replies: 4
    • Forum: Windows Networking