firewall

  1. W

    NAS security help.

    Hi all. I'm new here, so apologies if this is posted in the wrong place. I recently added a Synology NAS to my home network. It has a dedicated IP that is entirely detached from all my other network hardware. The NAS is used as a backup server for an identical unit at my business address and...
  2. D

    Firewall "Network Services Filter" Is Bypassed When OpenVPN Client is Enabled 384.19

    I have an Amazon Fire tablet that by default appends 8.8.8.8 to any DNS settings. The 8.8.8.8 address is the first DNS server contacted by default, bypassing the router DNS setting provided by DHCP unless 8.8.8.8 is blocked. The only way I have found to block this is to 1. Add a network...
  3. Scobie

    Is there any way to block certain URLs for certain MAC addresses? (YES - solved)

    I just got a new Asus router and I installed Merlin and Diversion and so far it's looking amazing, big props to the developers. Anyway, stock Asus only has firewall blocking for every device, and parental controls blocks too many sites. How do I block URLs for certain MAC addresses? In practice...
  4. S

    DNS redirect to local DNS server

    Hi! Some of my devices use an hard-coded DNS server, i.e. 8.8.8.8. I like to re-direct this DNS traffic to my local unbound DNS server by using the firewall script of my AC86 router. I use the following IPTABLES commands. The rule is added correctly to iptables. Are these rules correct and how...
  5. L

    Asus RT-AC87U & Apple iCloud Blocked

    Good Morning: Is it possible that Build 3.84.13_10 is blocking iCloud on both Wired and Wireless Connections. My wife's iPhone can access her photos while on Cellular Data. However, put the phone on Wifi and it will not access anything in Photos (or iCloud for that matter). Even the computer...
  6. Shaunobi

    Help with my "Pandemic Family Firewall" solution

    Hi all! I have a medium-sophisticated router setup that helps my kids stay "motivated" to do their schoolwork. (I'm running an AC5300 + Merlin, Diversion, SkyNet, some custom scripts I wrote, etc.) However, I need help setting up our friends with an easier solution to manage their kids' network...
  7. elrengo

    Open Ports

    Hi! I've a AC-3100 with Asuswrt-merlin. I have installed Entware and ruTorrent. I open some ports in the firewalls: [email protected]:/jffs/scripts# pwd /jffs/scripts [email protected]:/jffs/scripts# ls -l -rwxr-xr-x 1 elrengo root 25889 Feb 8 17:19 amtm -rwxrwxrwx 1 elrengo...
  8. solstyce

    how to debug an iptable problem?

    I'm an iptables savage - I know just enough to know how thoroughly I could ruin my network configuration, and could use some help. I've tried to wrap my head around iptables several times over the years, and each time stagger away with a headache. I've run into a problem where my AC68U drops...
  9. N

    spooked by frequent notify_rc restart_firewall events

    I'm trying to work out why today the syslog has many rc_service entries such as this: May 6 09:35:01 rc_service: amas_lib 368:notify_rc restart_firewall May 6 09:35:02 nat: apply nat rules (/tmp/nat_rules_eth0_eth0) May 6 10:19:37 rc_service: amas_lib 12463:notify_rc restart_firewall May 6...
  10. amplatfus

    [SOLVED] Firewalling Samba for one manually assigned IP

    Hi all, I am trying to restrict access to router external USB storage with SAMBA active. I tried using below rules in firewall, but nothing worked Could you please provide some things to try? iptables -A FORWARD -s 172.16.0.242 -d 172.16.0.1 -p tcp --sport 137:139 -j DROP iptables -A FORWARD...
  11. K

    OpenVPN server, no Internet at Connect

    #Update2 Problem: Outside and inside I can connect to the clients on the OpenVPN server running on the Asus router. But I can't get a usable internet connection. This will only change if I deactivate the internal firewall of the Asus router. Now the internet works on all devices without...
  12. HELLO_wORLD

    [R7800, R9000 & probably others] Blocklist based Firewall addon

    DEPRECATED Now use aegis: https://www.snbforums.com/threads/aegis-a-firewall-blocklist.64128/ I made a blocklist based firewall addon for myself, and I improved it to share it here as it can interest others. Firewall Blocklist Firewall blocklist script for Netgear R7800 and R9000 Routers...
  13. R

    Unsure best direction for better logging and securing IoT devices

    I'm into IoT and home automation, but I'm embarrassed to admit I've rather ignored the security aspects of my home network so far. I'd be really grateful for some guidance on the best direction to address this, especially if anyone thinks I might be wasting my time looking into building a NG...
  14. Skeptical.me

    Should I be concerned about this? Merlin/Skynet Security

    My home network has mostly had this set up ... ISP Modem/Router > ASUS RT-AX88U > Devices I've just put the ISP Router in Bridge mode and set up the OpenVPN Server, and I am using it. However, I'm concerned about security now the ASUS is directly exposed to the Internet. I have Skynet...
  15. cdysthe

    Syncing computer with Insync stalles my Netgear Orbi RBK50/RBS50 based network.

    Hi, I was going to sync my whole Google Drive to a new laptop using Insync. After the sync starts and runs for a minute or so the whole network slows down and then halts. In the router logs I see this: "[DoS Attack: ARP Attack] from source: 10.0.0.4, Monday, December 09, 2019 16:33:05"...
  16. L

    Recommendations for OPNsense box?

    So I need a firewall for my home lab and settled on OPNsense. I got a Dell recoverpoint box from work. 4 NICS, 12GB of RAM, 2x Six Core E5-2620, 2x 300GB HDD. I had planned on using this as the OPNsense box...but...I feel like it's overkill. I also feel like it's going jack my electric bill...
  17. Mathieu

    firewall-start - tentative script

    Hi everyone I am the proud owner of 2 cheap ipcams, made in China and notorious for causing all sort of security issues. I also intend to save in the cloud whatever those would capture, using a paid-for cloud service. I understand there is a need to open ports on my firewall, and the cloud...
  18. S

    TP-Link home routers: any support for IPv6 firewall?

    Do any TP-Link home wifi routers have support for an IPv6 firewall (meaning the ability to block unsolicited inbound IPv6 traffic, except for stuff that is required by IPv6 itself, e.g. ICMPv6, etc)? I know the Archer C7 doesn't (via my own testing). How about the Archer A20? I've asked...
  19. E

    IPv6 firewall fails to function.

    RT-AC56R 384.6 (latest for this model at time of posting) IPv6 firewall on/off switch seems to generate a complete blockage in the "on" position and had none of the rules entered in the GUI. In the "off" position it drops bad packets, but otherwise allows nearly everything through. Anyone have...
  20. B

    (VPN) What does redirect internet traffic: All do?

    Hi, I had a quick question. I usually set up the VPN on my Asus Router using Redirect Internet Traffic: Policy Rules Strict and then select Block routed clients if tunnel goes down, but it's a long winded process having to do that each time I connect a device to the router. I want every device...
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