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Questions tagged [router]

A device that connects two or more networks and is capable of forwarding data packets to a destination based on information contained within a packet and internal routing tables.

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all of my router's ports are open? [on hold]

Something very strange happened 4 days ago.... I have been remotely connecting to my workstation using ssh. I use public authentication and my router has been set up to port forward all connections ...
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Cisco: Routing between routers with subinterfaces does not work [on hold]

I'm just learning to create Cisco networks, I'm using the Packet Tracer simulator, I have a problem that I can not understand why it happens, I hope you can explain me why it does not work and how ...
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can ping server but can't ping or join domain (DNS issue ?)

Like you can see in the title, I have a server with a LAN domain (+ DHCP/DNS, AD, FileServer). After a blackout, we had to reset our routeur and APs and since then, I can't access the domain with the ...
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16 views

If an echo from tunnel interface IP is successful but an echo from the tunnel interface source fails, is that an outage with ISP?

Trying to track down an outage. Our Cisco ASR has a tunnel configured as IP: 100.64.#.# Source: 192.#.#.# (Amazon DX block, this address is also configured as a loopback on another interface) ...
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1answer
22 views

Route traffic to the internet through router and Mikrotik firewall

I would like to request your help to understand whether my diagram is correct, at least conceptually. Im trying to set a network environment from almost scratch. We have a fixed IP provided by ISP. ...
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20 views

Establish VPN connection from a client behind a Debian router

EDIT : My searches leaded me to GRE packets : they seem to be exchanged on IP port (not TCP one) 47. It seems to be quite painful to handle it with iptables. So question become : how can I transmit ...
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2answers
40 views

Router's Parental Controls Really Block All Internet Traffics?

I am using Asus 4G-AC53U router. When I turn ON "Parental Controls" to block a client's Internet access, does the router really block ALL kinds of Internet traffics including system's service (such as ...
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13 views

Certificate Chain Issues in Draytek Vigor Router 2862

I have a Draytek Vigor 2862 that I am trying to configure SSL on. I have imported the Comodo Cert in as a Local Certificate, added the intermediate certificates as trusted certificates and then ...
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1answer
20 views

How do I run internet to my hardwired ethernet lines without putting the wireless router in a bad location?

I have a situation where a building was pre-wired for Ethernet (Cat-6, I believe). After some research, I believe if I wanted to run internet to all the cables that run to the rooms in the building, I ...
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28 views

What's the `---(backing up)---` meaning of Juniper Router configuration?

When I show the Juniper router MX480's configurations: } xe-4/0/3 { ...
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5 views

port 80 closed after port forward and firewall settings [migrated]

Currently I'm having an issue that only somehow started to appear within the last day or so and nothing about my network setup changed that would cause these issues. I'm running a development ...
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1answer
48 views

How can I make an ACL list work within a LAN? [closed]

I added an ACL list to Router A and permission is working fine if the packet comes from another LAN. The problem is, when a Packet is sent within the LAN that is connected to Router A, the packet is ...
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There have the route in router, but I can not ping it

the network is 142.0.143.0/24, I can not from my Router to ping it. and I found there is a route of 142.0.0.0/20 which AS path is 1299 13576 I, I can not found the more detail network such as 142.0....
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30 views

Multiple routes from router advertisements

Consider the following simplified setup: All devices are IPv6 enabled. Interfaces are configured in a way that we have 3 networks as shown. Router advertisments are enabled on both routers R1 & ...
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1answer
56 views

Can not create sub-interface in Cisco CGR 1240

I follow a tutorial, there shows the method of create sub-interface: but in my actual situation, I can not do this: Router(config)#interface gigabitEthernet 2/1.100 ...
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21 views

Can't access my router web interface when RRAS running

I have a router and a RRAS server. IP Addresses Router: 192.168.0.1 (tplinklogin.net) RRAS IPv4 static pool(1): 192.168.0.0 - 192.168.0.10 RRAS IPv4 static pool(2): 192.168.10.0 - 192.168.10.10 So ...
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1answer
47 views

Unable to redirect HTTP traffic to transparent proxy (Squid)

I'm trying to create a transparent proxy to cache and blacklist traffic on my self-made Linux router. Problem is that all clients are getting timed-out when trying to reach any HTTP sites (HTTPS works)...
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21 views

Can a wrong configuration affect other devices in a WLAN?

Recently we had a problem regarding the installation of our IOT devices over the WLAN. Actually the problem is, among the ~30 device connected over DHCP only 3-4 of them are actually able to connect ...
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1answer
15 views

What's the meaning of `user-interface vty 0 4`?

In the Quidway AR 2220 router. What's the meaning of user-interface vty 0 4 and user-interface vty 16 20? [R4-ui-console0]display this [V200R003C00] # user-interface con 0 authentication-mode ...
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Is there an command for re-acquire Direct Protocol type routes?

How can I refresh the Direct protocol type Routes? I deleted one Direct Protocol type route from Quidway route-table. Is there an command for re-acquire Direct Protocol type routes? Destination/...
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2answers
59 views

Are there any types of switches that allow you to set custom network speed on their ports? [closed]

I know there are managed switches out there that allow you to hardcode the speed of their ports to 10/100/1000 Mb per second. But what if I want to set the speed to only 1 Mb per second or perhaps ...
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55 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 ...
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1answer
47 views

Can a router route local traffic through the WAN side to an AP bridge via VLANS on a switch?

I've been researching VLANs and advanced network setups, and I'm wondering if this could work. WAN | Switch (VLAN and QoS for ISP) | \ Gateway router Router(AP bridge mode) | ...
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63 views

Connect to VPN without port forwarding on both mobile and laptop

I want to connect to my internal network from outside. No access to the CE Router. Teamviewer is able to go through but i need something like teamviewer only difference is i need it as a vpn like ...
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2answers
61 views

Do I need routers in a LAN with 2-firewall DMZ solution? [closed]

I have a LAN that will host an EXTRANET site with 5 servers, and 2 exchange edge servers. The LAN will service an office in a 5 story building with about 100-200 users on each floor. Each floor will ...
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3answers
168 views

How can I duplicate incoming DNS packets and send them to a different nameserver with iptables?

EDIT: the tldr: I want to use TEE and NAT to clone UDP traffic. I'm not worried about handling responses. I ideally don't want to install new software. I am using TEE to send to local segment (127.0.0....
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57 views

Why is my firewall rule not being applied?

I'm having difficulty getting the firewall on a Draytek Vigor 3220 to pass incoming connections to port 25. I've set a rule to pass TCP packets from WAN to LAN from any source IP address and port to ...
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15 views

Why is my firewall rule being ignored?

I'm having difficulty getting the firewall on a Draytek Vigor 3220 to pass incoming connections to port 25. I've set a rule to pass TCP packets from WAN to LAN from any source IP address and port to ...
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41 views

Any performance benefits of dedicated WAN-side router?

In our office we have an VDSL modem/router connected via WAN port to a second larger router which handles the internal LAN. Everything here is cloud based so we don't have any external facing servers ...
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51 views

Wireless to wireless (wireless server) terrible network performance

I have a server on a totally wireless network. PCs frequently disconnect and access to the server such as SQL query's and file transfers are painfully slow. Wireless to Wireless PCs <-wireless-&...
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Distribute a network in subnetworks [duplicate]

I am new to subnetting and still in learning phase, so I want to create 6 subnetworks from the following IP range 192.168.10.0/24 I have created the following subnetworks (since i need 6 so i ...
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Iptables rule for repeater

I'm trying to set up a network with Squid as proxy server. Unfortunately it seems that Squid is too slow for audio streaming purposes; in my case WLAN-radios. So my approach was simply creating some ...
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Routing/NAT with Network Protocol Transformation

I'm looking for a way to accept multiple TCP based protocols on any port, then transform and redirect them all to HTTPS and send them over the internet to a server. (The "Server 1" is mine with ...
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2answers
30 views

Is there URL filter like protocol in TCP/IP stack?

I find many type routers have their self-existent URL filter settings. Tenda: Nexxt: So, is there a URL filter protocol in TCP/IP stack? and if is, is there any software for controlling every ...
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25 views

Cisco 2901 copy running config timed out error

I am trying to copy the running configuration from a Cisco 2901 onto my PC to have a backup copy in a text file. I am connecting to the 2901 using PuTTY. Using the command copy tftp run I try to ...
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1answer
34 views

Multi router network and IPv6 DHCP/RA issues - How to assign default routers?

I've again got problems with our LAN. There are 4 WAN gateways all on the same subnet, all with 100M uplink. On IPv4 I advertise default routers using a ISC DHCP Server. On IPv6 there doesn't seem to ...
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78 views

what is a reverse nat and why would i need it?

Though I could find some definitions of reverse NAT (like from here), I couldn't really understand why it is needed. I'd really appreciate some examples.
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35 views

Accessing Routers used as an Access Point (or AP-Mode enabled)

UPDATED-STATEMENT: 20180827@115000 Post created UPDATED-STATEMENT: 20180809@212400 A suggestion was made that said no DHCP on downstream then it'll get it from the next DHCP upstream router. I'm ...
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Software router - failover static route

To understand my question here is a brief explanation of the network setup: Two buildings 5.6KM appart. MS Server 2008 R2 at site 1. Other site has several PCs that need to RDP to the server. ...
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22 views

Pointers to debugging mid sized office wifi set-up

We have a mid-sized office network (45 employees, 6 rooms, 8 indoor and outdoor wifi aps and several network switches) which has a problem in its wifi setup. Wifi connections become 'stale' every 5-10 ...
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1answer
40 views

Pull DNS entries from Dnsmasq to other DNS server

Background My department has a development network that is based on the idea of bringing up lots of local LANs for testing equipment in various configurations. The bridging development network ...
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0answers
25 views

Communicate between two Subnets through a LoadBalancer

Network Configuration: I have a network with the following topology : SubNet1 : Lan1 192.168.10.1, WAN1 : external_ip_1 SubNet2 : Lan2 192.168.1.1, WAN2 : external_ip_2 LoadBalancer (TL-R470T+) : ...
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0answers
25 views

USB broadband 3G connecting to a wireless router

In my workplace, the ADSL / internet line (which is connected to a TP-Link router) is down, so I need to use a USB 3G broadband modem to give other computers internet access. I was wondering if there'...
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1answer
315 views

Setting up pfSense to bridge LAN NICs and connect WAN

I have a machine with four NICs (physical ethernet ports) and I'd like to set up a fully updated pfSense on it. So far it looks like this: A few things I've done so far: I've set up the bridge ("...
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1answer
171 views

How does DNSMasq integrate with my router?

Context I've successfully installed DNSMasq on a Debian machine and everything seems to be working. Here's what I did: install DNSMasq with sudo apt-get install dnsmasq update file /etc/dnsmasq.d/...
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51 views

VPN IPSec between Google Cloud and Local Network - Arris Modem

I'm trying to establish a VPN IPSec between my local network and my virtual PCs under Google Cloud Platform. On Google Platform: Private Network: OK External static IP: OK Firewall rules: TCP, UDP, ...
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2answers
74 views

How to access host in LAN using alternate IP address?

I have a server in LAN (192.168.1.0/24) with static IP address 192.168.1.100, now I would like all service on this server to be accessible using 192.168.100.100 for hosts in the same LAN(192.168.1.0/...
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52 views

How to configure a management IP address on a router on a stick?

I'm setting up a simple Router on a stick following this tutorial (https://www.youtube.com/watch?v=2_xpsk-uRug&t=338s) The actual routing part works fine, however, I'm struggling to assign the ...
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1answer
557 views

RouterOS push static route for IPSec IKEv2 VPN

Can't find a solution how actually I can push a static routes to VPN clients, when they connect via VPN. Configuration from here RouterOS, IPSec, IKEv2. Clients mainly macOS users via standard soft. ...
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51 views

dnsmasq allow a specific domain to resolve IP

DNSMasq is being used to resolved all domains to resolve to local domains, which is working perfectly fine with below line of code address=/#/192.168.10.10 So type - o.com/abcd.com/googl.com and it ...