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How to communicate across network segments?

I have two hosts, A and B, which are connected to the same router via Ethernet. A's IP address is 192.168.3.100, but I don't know B's IP address. I want to scan B's IP address through A, but B's ...
朽木不可雕也's user avatar
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0 answers
13 views

WANem Emulator and two VM hosts configuration

enter image description here The below are the configurations I made , ` WANEM IP - 192.168.1.111 255.255.255.0 Client Windows IP - 192.168.1.10 255.255.255.0 Default gateway - 192.168.1.111 It is a ...
user26427295's user avatar
1 vote
1 answer
79 views

What is the default tunnel 'mode' when creating with `ip`

I'm trying to convert this ip tunnel creation process: sudo ip tuntap add tun0 mode tun sudo ip addr add 192.168.7.2/25 dev tun0 sudo ip link set dev tun0 up sudo ip addr show tun0 to a netplan ...
tarabyte's user avatar
  • 2,395
1 vote
0 answers
43 views

strange routing table entries

My Linux network device cannot be access outside my local network. I checked the routing table, and found the following: netstat -rn Kernel IP routing table Destination Gateway Genmask ...
talk 2ipad's user avatar
0 votes
2 answers
87 views

Why a host with interfaces for networks A and B reply pings to interface A coming from a host at B?

I have a Linux host X with two network interfaces: eth0 is at 10.0.1.0/24 with IP address 10.0.1.1 eth1 is at 10.0.2.0/24 with IP address 10.0.2.1 I have another Linux host Y at 10.0.1.0/24 network, ...
Lady Idiot's user avatar
1 vote
0 answers
57 views

SSDP Discovery not working for IP address other than WSL's instance IP

I am trying to port a process from Windows to WSL/Linux. Earlier, two Windows process were communicating through TCP connection after successful SSDP discovery. Now, I want similar communication to ...
Piyush Kumar Gupta's user avatar
2 votes
1 answer
150 views

On Linux I cannot bind to wireguard network interface via IP, but can with interface name

I have a WireGuard connection on my computer that I wish to only bind certain programs to. Programs that bind via the interface name (wg0 in my case) bind correctly, but programs that bind via ...
Rib's user avatar
  • 23
1 vote
1 answer
180 views

Two ULA addresses on one interface

I have a raspberry connected to an OpenWrt IPv4/IPv6 router. As you can see below, on the eth1 interface I get two ULA addresses: fd00::1f0/128 and fd00::27d5:6387:c8e5:3b1a/64 On the router, the fd00:...
NickG's user avatar
  • 121
0 votes
0 answers
156 views

Netplan - add secondary IP address and assign a label

I saw the same question here, but I can't find it anymore. How can I add secondary IP address and assign a label to it via netplan? I have this netplan config: # This is the network config written by '...
Semyon Bayandin's user avatar
0 votes
1 answer
155 views

Cannot IP Forward From a Physical Linux Server to a Docker Container Running on Another Physical Server and Vice Versa

TLDR; I have three servers, Server A, B, and C. Server A and B are physical servers on the same subnet. Server C is a virtual server, a basic WireGuard Docker Compose container running on server B, ...
SepSol's user avatar
  • 61
1 vote
2 answers
168 views

Is there any way to query a router about the IPs it has already assigned?

I have a WiFi device which connects to my Android phone's hotspot. My Android phone acts as a router. From my Ubuntu I connect to the same network. Is there any way to query the router (in this case, ...
Martel's user avatar
  • 111
1 vote
0 answers
212 views

SSH connection between Ubuntu Server VM

I'm trying to make SSH connection from my Windows 10 host to the Ubuntu Server VM. At the beginning I built the VM from scratch on VMware and chose the Bridged Adapter configuration. It gave me IP of ...
Caveira's user avatar
  • 11
2 votes
1 answer
420 views

Why is my public IPv6 address different from the one listed in linux

Going to [whatismyip.com][1] on different devices inside my home network provides expected results, the same IPv4 address and different IPv6 addresses on each device. However, upon looking at the ...
Ethan Raque's user avatar
1 vote
1 answer
279 views

IPIP tunnel packets are not send

I have a VPS with an external IP say 40.40.40.40 and trying to create IPIP tunnel to it. Here is what I tried: #create interface megatun0 to tunnel traffic through the host 40.40.40.40. sudo ip tunnel ...
Some Name's user avatar
  • 133
2 votes
0 answers
192 views

Mark only the udp traffic above a certain rate using iptables commands

I'm trying to achieve the following scenario: Using the iptables command, mark UDP traffic with destination port 1234 that passes through a Linux router with the recommended DSCP value for Expedited ...
Andres Pasca's user avatar

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