4
votes
Accepted
What is my Switch IP?
There is not really any common "trace" mechanism for Ethernet. (Some such mechanisms kind of exist, like 802.1ag OAM trace, but they're really rare in practice – and more importantly, they ...
- 436k
2
votes
Accepted
IPtables dropping packets I can't see with tcpdump and I don't know why?
You probably need the following rule:
-A INPUT -i lo -j ACCEPT
This is likely because you have the systemd-resolved local DNS stub listener listed as the (only) nameserver in your /etc/resolv.conf.
...
- 9,548
2
votes
DHCP and accessing local subnet
Customer rules don’t give me the opportunity to configure devices addresses, but I need the controller address to be static
That's something you really need to work out with your customer first. At ...
- 436k
2
votes
Accepted
block RFC1918 networks in pFsense for LAN seems not to work
To let the PC connect to the internet after such manipulations, I've had to manually set the gateway, the DNS server, and IP of the client PC, and again it works, but this time it's a surprise for me, ...
- 436k
1
vote
Dynamic vs Static NAT? How to tell which and when one or the other is in use?
To directly answer your question as asked, a standard consumer grade internet access router provides staticly-mapped , asymetric, source NAT, when it is allowing its LAN hosts to share a single public ...
- 35.4k
1
vote
Disable writing to macOS DNS cache
macOS doesn't cache DNS to the filesystem - it's in memory only and clears on shutdown. It doesn't log DNS queries by default either.
The only way to truly disable DNS caching is by stopping the ...
- 6,055
1
vote
Ethernet connection won't reach wall sockets - ( Router -> Switch -> Laptops)
There is a finite number of reasons for what's happening here, you should double- or triple-check these to find the actual culprit.
You are mistaken and the cables are not actually terminated using ...
- 2,774
1
vote
Accepted
Network shares not available in Windows scheduled task
It turned out to be a stored credentials problem. I used Windows Credential Manager to check and I found that Windows had stored the credentials for the NAS share, but had not stored the credentials ...
- 11
1
vote
Port forwarding on a Jio router
As others have mentioned, the router's IPv4 is behind CGNAT in Jio Fiber so port forwarding won't work, but each client (device connected) has a static IPv6 address which you can check via ipconfig ...
Only top scored, non community-wiki answers of a minimum length are eligible