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💡Duo Security Authentication Integration Guide
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💬 Your Firewall Story Could Earn You $35 Across Two Platforms!
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Secure Start with Zyxel x Tailscale 🎁 Get 6 Months of Tailscale VPN Free, Before Oct.!
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[Trade-Up Program] 🔄 Time to Trade Up: Say Goodbye to Legacy USG, Hello to Next-Level Securi…
Time to Trade Up: Upgrade Your Legacy USG and Unlock a Powerful New Experience.
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USG LITE 60AX ignoring explicit deny firewall rule when a nat rule is active
Please tell me i'm wrong. Just noticed that if i set up a nat rule, and leave "allow remote ip" to "any", it just open up that port for any source address despite "explicit deny" rule in packet filter firewall. Also, "allow remote ip" field in the NAT rule can't be anything but a single host. You can't even put a subnet in…
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VPN to Flex100H is driving me crazy
I used to use Zywall 110s (primarily) to connect my homes. 6 Locations. As Zywall 110s are no longer updated - it was time to move on. This summer I replaced a Zywall 110 with a Flex 100H. I did not do any further changes when I found out that the 100H Flex does not support forcing a specific VPN tunnel as next hop.…
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[Linux expoit] - CVE-2026-31431
Hello everyone, I recently came to know this new CVE: https://copy.fail Some of devices are affected by this? I have the USG Flex 200HP firewall and NWA130BE wireless. Are these devices affected by this bug by any chance? Thank you
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Tailscale Question?
Greetings! I was looking into a VPN solution and stumbled onto this: https://mysupport.zyxel.com/hc/en-us/articles/28559967649938-Zyxel-Firewall-H-Series-Tailscale-VPN Could I just install Tailscale on the server and client and achieve the same result? If so, how does the Firewall help? I apologize if this may be a dumb…
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Batch objects import/load
I'm looking for any viable way to insert a lot objects in one action; importing CSV/TXT, template file… any way possible. Both for ZLD 5.x and uOS.
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Qnap VPN behind a USG20W-VPN Firewall
Good morning,I have this problem: I use the Qbelt VPN on my QNAP NAS. The NAS's VPN server has an IP address of 10.10.10.1/24, the office network is 192.168.0.0/24, the firewall has an IP address of 192.168.0.1, and the NAS has an IP address of 192.168.0.250/24. When I connect with my home VPN, I ping the firewall…
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Can I restrict a single computer to a single website?
I need to block access to all websites except for one specific site, but this restriction is only needed on one computer. Can a Web Content Filter profile be applied to just one client?
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64 object limit for IP group
Hello to everyone, today I discovered that there's this limit of 64 entries for Address group, and it hit me in two ways. 1: the limit is present on ZLD 4.x device like USG40. 2: the limit is also present on a ZLD 5.x device, like USG Flex 50 (or as it was born… USG 20 VPN. 3: the limit is not present on a ZLD 5.x device…
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ETA for next ZLD 5.X firmware
If any… for the known and sharable information at this date.
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Flex 200 L2TP VPN server
Hello is it possible when using the authentication as Nebula Cloud authentication to have MFA enabled for the L2TP VPN Connection?
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Does FLEX 500 only have URL threat filter?
I was working on a FLEX 100 router and noticed under Configuration > Security Service > Reputation Filter it has IP threat filter, DNS threat filter and URL threat filter whereas on a FLEX 500 I only have URL threat filter. I renewed my security subscription. Shouldn't I have the other filters on my FLEX 500? I did…
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SecuReporter Notification - Security Summary Report
Hi, I'm noticing inconsistent behavior in the Smart Summary section of SecuReporter reports. Across different organizations, I see three scenarios: A "Security Summary Report" with finding and recommendations A "Security Summary Report" stating "No action required" No "Security Summary Report" section in the email When no…
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USG LITE60AX | Multiple LAN / port settings
Is the ability to have multiple LANs without setting up VLANs an implementation that will never be added?
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L2TP MacOS guides are up to date?
I've searched procedures/guides to configure L2TP connections between ZLD 5.x devices and MacOS computers. I found these… https://mysupport.zyxel.com/hc/en-us/articles/360005956720-Configure-L2TP-VPN-client-on-macOS which are two years old, and it's habit from Cupertino to release a new versions every year. Also… While…
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Bug Report / Feature Request — USG FLEX Web UI: 2FA verification field does not accept ENTER key
Summary Inconsistent keyboard behaviour between the login stage and the 2FA verification stage creates a daily usability and security friction point for administrators using standalone mode with 2FA enabled. Current behaviour Step 1 — Username/password screen: ENTER key submits the form correctly. Step 2 — 2FA verification…
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Any idea why we can't receive traffic from a few specific IP addresses
I am having an issue on my FLEX 500 (up to date on latest firmware and signatures). We have an SSTP VPN behind the router and 2 people out of all our users can't connect anymore. They had been able to connect for more than a year without issues. I have tried disabling security services and creating rules to allow them to…
