5 votes
Accepted

Why is 172.16/12 contiguous?

Only 172.16 (10101100.00010000) is masked by that range. All oclets 17-31 are not protected by the mask. No, that's not true. All octets from 16 to 31 are covered by the mask equally, because they ...
u1686_grawity's user avatar
3 votes
Accepted

Does total network traffic being higher than the bit rate of a device's ethernet controller affect the controller?

My question, due to almost total ignorance about computer networking: do the packets that are on the network that are not being sent to or received by the ip address of a device still contribute to ...
u1686_grawity's user avatar
2 votes
Accepted

How are third-party providers (e.g. Huawei) supposed to unintentionally take over control of their products?

So how is supposedly malicious software supposed to be able to cause damage here if you can regulate exactly which data traffic is routed where and thus, for example, only allow connections from the ...
u1686_grawity's user avatar
2 votes
Accepted

Second router after ISP router for privacy

Yes, this will work. A router creates a new network and everything at the WAN side is shielded off unless you do port forwarding. Do note, currently, your ISP will not be able to connect to your ...
LPChip's user avatar
  • 61.1k
1 vote

Fast switch on a slow / older router possible?

Your router is going to only really come into play for assigning IPs, and when traffic leaves your subnet. Within the same subnet, traffic is going to go from switch to switch as needed and not the ...
Journeyman Geek's user avatar
  • 129k
1 vote

Block with firewall a dns request containing a certain query

iptables does not understand DNS natively, but it should be possible using string match: -p udp --dport 53 -m string --algo kmp --hex-string "|0A|wetransfer|03|com|00|" --icase Note that ...
u1686_grawity's user avatar
1 vote

Something is interfering with my WiFi connection on my laptop. Is it the dedicated GPU?

From your description, it seems the power plan settings need to be changed: Plugged in, GPU not heavily laden, WiFi works well, ping = 16 ms Heavier GPU work ping jumps up to 1 second Charger ...
DrMoishe Pippik's user avatar
1 vote

Why is 172.16/12 contiguous?

Per this patient answer by u1686_grawity, the mask does not cover possible numbers, but unchangable numbers! 11111111.11110000 Protects the first twelve spaces: 10101100.0001xxx allowing that range ...
Jesse's user avatar
  • 165
1 vote
Accepted

Connect to a device on another subnet using 3rd device as a proxy

I am unable to get an ethernet cable to the where the device lives, it is however able to receive WiFi. There are many products that can connect to a Wi-Fi network and provide access via Ethernet, ...
u1686_grawity's user avatar
1 vote
Accepted

How does firewalld "ingress" and "egress" work compared to the 'classic' way of masquerading IPs?

You've probably found an answer one way or another so this is for posterity: the external zone comes with masquerading on by default. List the zone rather than the policy and you'll see it. user@...
Neal's user avatar
  • 26

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