Questions tagged [forwarding]
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151 questions
2
votes
1
answer
135
views
Nested VPN connection via Wireguard
I designed the following topology:
Client A -> Server B -> Server C
Server C: wireguard server that NATs packets from its clients (in this case just B) before sending them to the Internet. Its ...
- 151
0
votes
2
answers
147
views
ubuntu arp problem with who-has x.x.x.x tell y.y.y.y
i have a single server which two VM(ubuntu) configured as ubuntu-edge(with frr module for routing - wan side) and ubuntu-fw(for lan side), between these machines there is a virtual internal interface. ...
- 1
0
votes
0
answers
110
views
IP forwarding not working when enabled in RHEL 7.9?
I've enabled ip forwarding on a RHEL 7.9 machine, but it's not forwarding any icmp requests. I've set the ip_forward flag
cat /proc/sys/net/ipv4/ip_forward
1
/etc/sysctl.conf has been edited to ...
- 157
1
vote
1
answer
112
views
Why does the VPN client have access to all interfaces instead of being restricted by the subnet and the disable forwarding option?
Context
In my Debian Linux infrastructure, I manage several network interfaces with specific roles.
Interface
Role
Subnet
Description
eth0
Public connection
192.0.2.0/24
Used for external public ...
- 21
0
votes
0
answers
41
views
configuring internet access through other server
I have server A which has a 4-port Network Interface Card, and it is configured to reach the internet via its eth0 where DNS and a gateway and a proxy is specified.
I have an identical server B with ...
- 9,184
0
votes
0
answers
97
views
iptables udp packet forwarding
On my Linux machine, I have a UDP server listening on IP 192.168.1.5 port 44123 and an application that sends UDP packets to other devices on the same network, in particular to devices with IP 192.168....
0
votes
1
answer
347
views
Forward Traffic From LAN To Tailscale Subnet with Firewalld
I have a Raspberry Pi with an ethernet connection on the end0 interface to the 10.15.16.0/20 network. It has a static IP address on this network at 10.20.30.15.
The Pi is also connected to my ...
- 101
3
votes
1
answer
103
views
IP forwarding between two LANs without masquerading
I have two LANs connected with a VPN:
LAN1:192.168.0.0/24 <=> VPN:192.168.2.0/24 <=> LAN2:192.168.10.0/24
The two routers (one on each side of VPN) are running on Debian Linux and IPv4 ...
- 61
3
votes
1
answer
2k
views
How to make "Warning: remote port forwarding failed for listen port XXXXX" into error?
In most cases this is harmless message. In this case, this SSH connection exists solely to forward TCP ports (and it uses a dedicated key which is restricted to only be able to do this), and it should ...
- 1,779
0
votes
1
answer
445
views
igmpproxy not routing SSDP between interfaces
I have hostapd running on two wireless devices in isolated and bridged mode: wlp1s0 is behind the bridge wan, and wlp5s0 is behind the bridge iot. The exact configuration for each bridge is the one ...
- 25
0
votes
0
answers
1k
views
virt-manager network options or virtual network interfaces
I want to ask about network options on virt-manager. I used to have the options shown in the given picture https://i.sstatic.net/P4SYR.jpg
host device eth0 : macvtap
host device wlan0 : macvtap
and I ...
0
votes
1
answer
479
views
SSH reverse tunnel and port forward to a different machine on remote network
i am trying to do something , but i cant get it to work
After at least 4-5 hours of research and trying , its time for help
I want to connect to a second remote machine trough a primary remote machine
...
0
votes
2
answers
1k
views
Failing at SSH Agent Forwarding
I have a DigitalOcean droplet into which I'm attempting to clone a repo from Github.
This works fine on my local machine, and I've been following the guide from Github here:
https://docs.github.com/en/...
- 133
4
votes
3
answers
10k
views
X11 Forwarding request failed
I'm trying to use ssh -Y/X ManjaroHost from my Mac, but get "X11 Forwarding request failed". I've searched for the solution for two weeks, and have tried many methods suggested by similar ...
- 43
10
votes
2
answers
9k
views
Difference between net.ipv4.conf.all.forwarding and net.ipv4.ip_forward
According to https://www.kernel.org/doc/Documentation/networking/ip-sysctl.txt
conf/all/* is special, changes the settings for all interfaces
forwarding - BOOLEAN
Enable IP forwarding on this ...
- 101