Questions tagged [ip-routing]
The ip-routing tag has no usage guidance.
286
questions
0
votes
1
answer
284
views
Routing between two Cisco CSR1000v instances on AWS
I'm building a lab in AWS with Cisco CSR1000v virtual routers. I've tried both the below options.
In option 1, there's no way to force the traffic from linux1 or 2 to the respective CSR routers since ...
- 1
0
votes
1
answer
930
views
How to add a routing rule that only match "dport"?
In my OpenWrt box, I want to route only a specific protocol(tcp:1888) to a tun interface only for one PC(192.168.28.2), so I do as following:
ip rule add from 192.168.28.2 dport 1888 lookup 123
ip ...
- 179
0
votes
0
answers
46
views
route packets from specific hosts to virtual device
PIMv2 I think the issue is with multicast.
I want to create a GRE tunnel that supports multicast PIMv2. I am seeing the server sending PIMv2 Hello messages to my gre tunnel but my machine is not ...
- 1
1
vote
1
answer
668
views
Ubuntu UFW log shows public addresses sending traffic to my RFC1918 private address
This is really a routing question but here is the back ground:
I am running Ubuntu 20.04.3 LTS with UFW. My internal network is 10.126.1.0/24. No inbound translations at the Internet edge.
If I ...
- 11
-2
votes
1
answer
179
views
Connectivity issues with 127.x.x.x series [closed]
Asked this in network-engineering in stack exchange and was redirected here.
I have a couple of servers with the below config
server1:
eno1: 127.15.0.1/16 scope global
eno2: 5.0.0.1/24
server2:
lo: ...
- 9
1
vote
0
answers
125
views
IPv4 -> IPv6 -- IPv6 -> IPv4 routing
I hope the is the right place to ask this question. I'm just looking for the correct name of the type of network routing I'm attempting to implement so I can learn and implement it.
I'm using linux (...
- 11
1
vote
0
answers
189
views
IP Binding Issue in using GRE Tunnel
I have a issue with tunneling and am having a hard time finding a solution. I have two servers, A: Host-Server being a sever with a single IP, and B: Main-Server being the server handling all our ...
0
votes
1
answer
121
views
Decoupling IP address from hosting provider
We run a service that provides on demand websites to our users as part of our offering. In order for our users to use their own domain with our website feature, we have them create an A record to our ...
- 639
-1
votes
2
answers
804
views
Multi hop routing
I'm trying to communicate from the tx.py program to send packets (UDP) down to device 1 and device 2 shown in the picture. Currently we have OpenVPN clients running on 2 of our VMs and if I run tx.py ...
- 61
0
votes
1
answer
42
views
Super user limited to changing route table
Background: I am trying to implement dynamic routing for a system.
Is it possible to create a super user that is restricted to changing the routing table? Something like a restricted sudo that can ...
- 111
2
votes
1
answer
3k
views
proto static metric for overlapping prefixes
Can someone please clarify how the route metric is set by Centos 8 in the following situation.
I have two vlans on the system, each of which has a matching route prefix defined in /etc/sysconfig/...
- 363
0
votes
0
answers
1k
views
DHCPOFFER not crossing virtual bridge on Linux?
I have a physical host machine running Ubuntu 20.4LTS (fully patched) attached to my network, which retrieves it's IP address via DHCP. This works.
I have a VirtualBox VM on that host attached to a ...
- 123
1
vote
0
answers
1k
views
Port-Forwarding and Routing on Windows Server 2019
we run several virtualized servers (all Windows Server 2019) in a cloud environment.
There is one server used as router (with a public IP and a privte IP 192.168.100.10)
and two further servers have ...
0
votes
0
answers
211
views
IP forwarding with iptables
Im new with this scope. I need your help for this setup. I have 3 linux systems that may seems look like this.
System A System B System C
---------- ----> ------...
0
votes
0
answers
137
views
Linux router over VPN
I have a Linux (Ubuntu 18.04) device with 4 Ethernet ports and a LTE wwan card that I want to turn into a bridge and router. However, I don't want to enable NAT via the LTE connection, but route all ...
- 156