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Questions tagged [routing]

the process by which data packets on communication networks are forwarded into the direction of their ultimate destination by routers.

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10 views

Rewrite frames on packet switching router

I have 3 computers connected in a network, as shown below connected over ethernet. +--------+ +--------+ +--------+ | comp-1 | | comp-2 | | comp-3 | | ...
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11 views

How do route through datapower, using datapower 7.7.1.3 docker image

I would like to route all data through a datapower docker image. HOWEVER I failed to see the steps how to do it in datapower itself. +-------+ +-----+ +-----+ | A | ...
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13 views

Applying access control list to a network environment [on hold]

I have a network that I need to apply an ACL to but I am not sure where to apply the list. The VLAN 99 are able to access anything on the network. VLAN 10 are not allowed to access the VLAN 99 subnet, ...
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5 views

Traceroute on a hop gives timeout [migrated]

I was just looking into traceroute and trying to understand it's behaviour. Theoretically I get how IP routing and how traceroute work, but this case baffles me. traceroute to google.com.ar (172.217....
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1answer
66 views

Running experiments for limited audience in AWS

My goal is to be able to route traffic from Route53 to my autoscaling group using relatively complex rules. Route 53 must provide DNS, and my EC2 instances must service the request, but I'm open to ...
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32 views

Complex request routing in AWS

My goal is to be able to route traffic from Route53 to my autoscaling group using relatively complex rules. Like: 1% of traffic with this value in the url path should be routed to ASG A 0.1% of ...
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1answer
28 views

Does OSPF routing protocol works in AWS?

I'm having troubles with finding the neighbors after the IPIP tunnels configurations where I have 4 VPCs and deployed there 4 CSR routers (for more details about the configuration, I posted yesterday ...
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12 views

Mikrotik routeros maximum number of filter rules

We need to deploy a service using Mikrotik routerboard CCR. We need to know how many filter/mangle rules a Mikrotik device can support: hundreds, thousands ? What about performance, cpu and memory ...
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13 views

Windows Server 2016 Hyper-v Host 3 websites in 3 VM with One Public IP

I have windows server 2016 Datacenter as Host (Base OS) in Xeon Blade Server. I have to host 3 Website in 3 Different VMs (Windows Server). I have I public IP 5.189.175.xxx assigned to Ethernet Port ...
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1answer
26 views

Simple router with two ethernet interface no static route needed?

Normaly, for two subnets connected with one router, i always used to create two routes per example: subnet 1: 192.168.1.0/24 subnet 2: 192.168.2.0/24 router interface 1: 192.168.1.99 router ...
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28 views

Bridging together MSM460 AP clients over static mesh link with MSM560 Ethernet port

My objective is to make clients connected to the HP MSM460's AP to be able to connect to the LAN connected to the HP MSM560. Like this: Client #1 <-> MSM460's AP <-> MSM406's mesh link ...
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1answer
65 views

How to do routing between the instances in AWS using Route Table?

I have built the following model below. There are 4 instances which have CSR 1000v router deployed in 4 created subnets (green CIDR) that have 28 as a mask. I have created other subnets in order to ...
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1answer
34 views

route traffic from VPN server LAN (cloud) peer to VPN client

I have set up a Google Cloud deployment roughly configured as such: node B, which is at address 10.0.0.6 and default route is through 10.0.0.1 node V, which is a VPN server, on same subnet at 10.0.1....
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1answer
24 views

Linux route policy based on tos returning wrong gateway

I have a simulated ad-hoc network running on Docker, using Ubuntu 16.04 as a base. I have a number of routing tables. The table in question, table 102, appears as: root@b22e0eafe06d:~# ip route show ...
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1answer
36 views

Forwarding and routing issues using linux bridge

I have two containers running (A and B) inside a Virtual Machine (Ubuntu 18.04). For network simulation purposes I am routing packets from A to B (this part works). What I want to do is to allow A and ...
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0answers
20 views

why traceroute shows only one direct connection instead of 2?

I have got 4 CSR Cisco 1000v deployed in VMs on AWS. I could ping the Primary network interface of each VM from any instance in the network, but when I try traceroute it is not successful. The VMs ...
2
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1answer
55 views

How to Virtual static routing in CSR 1000v on AWS?

I'm trying to do static routing for 2 Cisco CSR 1000v routers which are deployed on 3 VMs in AWS, but it didn't work. I configured correctly 2 interfaces of both routers, but when I tried to ping the ...
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1answer
15 views

WatchGuard Firebox own Internet connectivity fails after adding BovpnVif route to 0.0.0.0/0

Environment: A company network has a Firebox M-series appliance with Total Security Suite at headquarters. Every branch office has a smaller T-series Firebox without subscription services. For this ...
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0answers
20 views

Can you clarify linux RPDB routing using 'from' vs 'oif'?

I'm trying to figure out load balancing/failover over multiple WAN interfaces on a routing server. I've obviously not fully understood what's going on and it's driving me nuts. I'd really appreciate ...
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1answer
48 views

Linux routing on same interface?

I'm looking for a solution to have the "main" NAT/firewall gateway of the network route packets to a specific VPN gateway when their destination is the LAN behind the VPN gateway. Here a small ...
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0answers
23 views

How can I advertise routes in BIRD?

I am trying to advertise some routes from my bird server to my Cisco router, I already have a neighbor relationship with my Cisco router, but I am not learning the advertisement networks from bird. My ...
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0answers
26 views

iproute2 routing through multiple networks with rt_tables

This question is similar to many others I've consulted while seeking an answer, both on ServerFault and elsewhere, but I'm stuck because as far as I can see I've set this up correctly but I'm have no ...
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2answers
83 views

Why do I need an external address to make an internal connection between GCE instances?

I have a VPC (10.11.0.0/20) with 3 VMs. VM2 and VM3 are the same except that VM2 has an external IP address (ephemeral) and VM3 does not. They're both running a Docker image with a web server exposing ...
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0answers
17 views

Some devices cannot communicate through switch

I have several mini-computers behind a TrendNet TEG 2248WS (48-port web managed switch). I have no problems with a good portion of my devices. However every OrangePi device does not communicate ...
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1answer
60 views

How can access a server (SSH access) situated under 2 layer of private network from a PC having public IP?

I need to access (SSH) my client's server (Ubuntu Server 18.04) to provide support. But the server in client location is situated in private network. I could have connected with port forwarding in ...
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1answer
34 views

Route internet traffic through one nic and local traffic through a second nic

I am trying to route traffic through a specific interface based on its destination. OS is CentOS 7. I am setting up a mini MPI farm where I have 2 slave workers and one master. The master and slaves ...
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2answers
50 views

Basic QoS bandwidth for all devices/clients

I have an IP network that has about 500+ clients on the network at any given time. The network uses a Cisco 1941 router as it's gateway, and has 5 different subnets. The network also has 2 DCs, a ...
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1answer
36 views

Port 80 mixed up among clients using DNAT

I'm trying to set up a network like this: ...but I'm facing an issue. Here's the point: If I try to reach (e.g.) mywebsite1.com from external it works like a charm and it's shown my wonderful ...
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0answers
16 views

How do I assign a specific interface or IP for squid to use for outbound external authentication (ldap)

Background: I have a few pfSense servers that run a squid proxy, each one is configured with a central LDAP backend available over a VPN tunnel, is most cases this is OpenVPN but in one case we are ...
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1answer
34 views

Assigning ipv6 addresses for multiple ipv6 only proxies

I'm a bit new to IPV6, so please correct me if I have some horrible misunderstanding somewhere. I have a situation where I want to run multiple ipv6 only proxies on Linux (Ubuntu 18.04 and proxies ...
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1answer
34 views

Configuring Juniper EX2200 Ethernet-Switching

Recently I started configuring an Juniper EX2200 to be used with an fibre optic connection in it's SFP module. The switch itself is online and can ping remote hosts without an issue after setting the ...
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1answer
25 views

IPsec: Can ping hosts of other network with the firewall but not with hosts behind the firewall

I have a endian firewall and a established IPsec tunnel. The firewall is in the network 192.168.100.0/24 and has the address 192.168.100.1. The hosts that I try to ping are in the network 10.4.0.0/32 ...
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47 views

OpenVPN Clients cannot see subnet behind client, but server can?

So, I have a rather unusual network setup, in which: I have a server (Let's call it 150.1.1.1 for example) This server runs a OpenVPN server (IP 10.10.4.1 with the DHCP Range 10.10.4.0/24) I have an ...
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1answer
44 views

How do I route traffic from VPN gateway to distant network?

The situation in my environment is as follows: There is a network (213.213.213.128/26) with a VPN gateway (213.213.213.155). There is a distant network (10.42.0.16/28) on AWS which is connected with ...
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1answer
32 views

netstat vs nmap to find IPs in a local network

I'm in a local network : IPv4 shared address space (100.x.x.x). Connected to a wifi hotspot. Ip ranges : 100.76.164.0/23 When I run : nmap 100.76.164.0/23 : It says all the hosts are down netstat -...
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0answers
21 views

Reaching any server on a separate network with proxy+ssh

I have server A sitting in network A. Server A is able to connect to a bastion host in network B via ssh. This bastion host is able to reach any port on any server in network B. From any server in ...
3
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1answer
727 views

Does 0.0.0.0/7 represent the same range as 1.0.0.0/8?

The range of 0.0.0.0/7 is 0.0.0.0 - 1.255.255.255. The range of 1.0.0.0/8 is 1.0.0.0 - 1.255.255.255. AFAIK, 0.0.0.0/8 (0.0.0.0 - 0.255.255.255) is not usable. So, do these represent the same range ...
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0answers
46 views

SSH Session with Active OpenVPN Client Dilemma

Since this morning, my ssh session was getting freezed when I run .ovpn file. The problem is that the default gateway gets changed by OpenVPN, and that breaks my current SSH connection unless I set ...
0
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2answers
63 views

GCP to AWS VPN connectivity one way ping

I have VPC under AWS connected to VPC under GCP via VPN (Google VPN and AWS native). AWS Region A (10.10.0.0/16) <-> AWS VPN <-> internet <-> Google VPN <-> Google Region B (...
2
votes
1answer
89 views

OpenVPN: Addressing remote LANs

I've been trying to solve this problem for a while now, but to no avail. We basically have an OpenVPN server to which our end devices need to connect. Some of those devices can directly connect to the ...
1
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1answer
33 views

Centos7 dual NICs: DMZ & Management

We have recently started to add to our DMZ servers a second NIC to be used in a management network. The server is supposed to do everything via the DMZ NIC (eth0, natted and on 10.x.x.x) unless trying ...
0
votes
1answer
12 views

ERSPAN to IP on Centos host with multi interfaces on the same subnet

I have an interesting configuration and would like some help getting it to work. On a hardware network monitoring probe, i have 2 physical interfaces. mgmt is the management interface and mon1 is a ...
0
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0answers
17 views

Packets not routed via IPSec tunnels

I'm running Brocade vRouter 5600 based on Vyatta. I've got 2 gateways running in high availability, and they've run in a couple of years working fine. I'm trying to setup a VPN/IPSec on one of my ...
0
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0answers
36 views

OpenVPN + OpenWrt: server doesn't see devices in the client's network

I have an OpenVPN server. I'd like to get the access from there to the resources available on the client's network. The client network is managed by an OpenWrt-based router; it serves as an OpenVPN ...
2
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1answer
106 views

Seperate network connection on server with 2 NICs

This is the setup we are aiming for in the picture. As you can see, the supervisor server (CentOS 7.5) has two physical nics (eth0, eth1). One of the design goals would be, to have eth0 allowed to ...
0
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1answer
27 views

Routing from LAN into OpenVPN

I need to set up a route from our local network into our VPN. That is, anybody from inside the LAN should be able to communicate with machines in the VPN, without being a VPN client itself. Problem is,...
0
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1answer
41 views

Configuring Data and Voice VLAN Cisco SG300

I have a Cisco SG300 managed switch I am attempting to configure to handle two VLANs one for data (VLAN1) and another for voice (VLAN20). Ports 1 and 52 are configured to trunk to the router/...
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1answer
99 views

Cisco Switch Port Routing

There's a Cisco 3560-24PS-S, and I need to configure it. I'm not a certified network expert, but I have some basic understanding of how the switches and routers work. The plan is to connect a BMS ...
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0answers
44 views

Squid and dynamic ip network adapter

I am struggling with setting squid proxy server to work with dynamic (3G/4G) USB modem adapter. I know that I should set tcp_outgoing_address directive to the IP of the adapter, but that is an issue ...
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0answers
60 views

OpenVPN/OpenWRT/TP-Link TLWR1043ND: How to configure OpenVPN on this router to get access to connected devices only over the WAN interface?

I have the following problem: There are two networks, network X and network Y. In network X is an OpenVPN server. A TP-Link router (see the model in the topic) should be connected to network Y only ...