Self2wan ICMP type b detected will be the focus of this write-up. The best networking devices and communication equipment currently in the market are produced by Netgear.
Their products are known worldwide because of their performance, laudable security, and stability.
Netgear has an error log across all their newly produced modems and routers. With this feature, every user will be allowed to identify any errors, which has been a hindrance to enjoying a good networking experience.
Its important to always check the error log to make sure there is no issue with the router or network.
Over time, some users have complained about an error they noticed ‘Self2wan ICMP type b detected’, which resembles a virus warning.
Read on to understand more what this implies.
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Self2wan ICMP type b detected explained
If you’re currently getting this error, well it isn’t a serious issue to worry about. The message means that your firewall as it supposes to by preventing any potential ICMP threat from passing your router.
The good thing is that you’re shielded from any threat that wants to affect your privacy.
The message also indicates that there has been an attempt from a third party to access your data and router traffic.
By implication, you need to take measures to ensure it won’t reoccur again.
To rectify this issue, these are the steps you need to take;
Take a look at your remote access
For those making use of remote access, ensure it’s only troubleshooting, official purposes, and other cogent reasons.
Using this can initiate this error in your router. Hence, it’s important to confirm your time matches when you used remote access.
If it matches, then you don’t have to be worried if your data or router traffic has been compromised.
Update the Firmware of your router
If you’ve not recently used your remote access, the first thing is to check the firmware of your router.
There is every tendency for outdated firmware to develop errors over time. After updating your router’s firmware, proceed and check for error logs to confirm if it will reoccur again.
Check antivirus and firewall settings
Outdated antivirus and firmware on the device you’re using can trigger this error log on your router.
Hence, it’s important to always ensure your antivirus is updated and configured properly including your firewalls.
With this, the error will be eliminated. If the error still reoccurs, then you need to reset the router.
Reset your router
In some cases, the settings of your router in a combination of some of the hardware component tends to trigger this error.
In a situation like this, you need to reset your router back to its default to resolve the problem. For reset, locate the reset button at your router’s back beneath the power button.
Hold it for at least 10 seconds or just hold it until you notice a light blinks. Then the reset has been completed.
Let it be known that resetting wipes off every setting you’ve on your router. Meaning you’ll have to reconfigure the settings again according to the requirement and preference.
Reach out to a network admin
If you’ve tried all the suggested solutions listed above and none worked for you, you need to reach out to any network admin who will take time and examine your network.
With this, he/she will be able to perform some diagnoses that will erase the error. This shouldn’t be a big deal, but it should be your last option though.
In Conclusion
Apart from the solutions listed above, you can as well change your public IP address. This is easier done if it’s a cable service.
Here, the MAC Address of the router will either be changed to ‘Use Computer MAC Address’ or ‘Default’. After this, reboot the modem so the new MAC Address will be registered.
On the other hand, if it’s a DSL connection, the IP is frequently likely to change but alternatively, you can as well reach out to your ISP and request that your Public IP should be changed.
Frequently Asked Questions
What interpretation does Self2WAN ICMP type b detected signify?
If you start getting this error, you don’t need to worry about or be scared. The meaning of this code is that the firewall of your router is functioning effectively by protecting your router against any potential ICMP threat.
Why did I receive Self2WAN ICMP type b Detected?
You received this error message because the router noticed an ICMP packet using its IP address as the source address which is being sent through the internet.
Normally, the router won’t carry out this function on its own when logged in. Regrettably, the log message is not helpful when it comes to pinpointing the exact source.
But apparently, it’s among your devices.
What does the ICMP Flood DDoS attack imply?
ICMP flood DDoS attack which is also known as Ping flood attack is a normal Denial-of-Service (DoS) attack.
This is a situation where the attacker tries to overcome a targeted device using ICMP echo-pings or requests. It does this by flooding the targeted network with request packets.
The network won’t have any option rather than to respond using an equal quantity of packet replies. With this, the target will become unapproachable to any normal traffic.
What is a DOS attack: smurf?
The Smurf attack refers to a distributed denial-of-service attack by which the quantity of internet control message protocol packets together with the projected target’s spoofed IP source is broadcasted to a computer’s network with the help of a broadcast address.
