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Questions tagged [wan]

For questions about Wide Area Networks (WANs).

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wondering on performance of SCP over WAN

I'm using a scp to retrive log files from linux machine. On the way between the PC and the linux machine there is WAN simulator which can be configured to some latency and delay. Setting the latency ...
user1977050's user avatar
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1 answer
38 views

Designing a web-facing network for redundancy and QoS (in a small business)

Summary How does one configure the web-facing part of a small business network for redundancy and quality of service? I mean ... we can have the control over our internal infrastructure, but what ...
iDontKnow's user avatar
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2 answers
88 views

Forward traffic from one WAN port to the other WAN port on the same triple WAN port router

So here's the situation that I have at my workplace (local municipality): I have received from my ISP a static IP address with a provided gateway, which all works normally when I input it into my ...
NetworkAmateurEnthusiast33's user avatar
1 vote
1 answer
77 views

Are WAN same as autonomous systems(AS)?

I am currently studying network+. I came across this question that are autonomous systems(AS) same as the WAN ? or they are two things completely apart?
Mohammad's user avatar
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1 answer
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ASA 5555 loses internet connectivity every few days, problem resolves by re-enabling DHCP on wan interface

I'm having a weird problem with my ASA. Every few days the internet connectivity fails (f.e. cannot ping wan ip addresses from the ASA). Problem resolves by forcibly rebinding the DHCP by no ip ...
The amateur programmer's user avatar
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1 answer
50 views

2 Routers for PPPoE and NAT 5 Public IP [closed]

My ISP have provided me with 5 Public IPs. I tried to NAT these 5 IPs to our local server by using this setup. The primary router will be setup for the internet connection while the one-to-one NAT of ...
Renivle's user avatar
1 vote
1 answer
643 views

How to use 5 static ip addresses with virgin media broad band

I have installed virgin media business broadband and the package comes with 5 static ips. These IP are GRE tunnels from the HITRON router to virgin. the IP addresses are for example 66.66.66.65 - 66....
funkimunky's user avatar
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3 answers
258 views

Direct connection slower than via switch

My office ISP provides a 1 GBPS connection. When I connect my laptop directly to the router provided by the ISP, and connect to fast.com, I get a speed of approximately 100 mbps. Our office network is ...
ranban282's user avatar
1 vote
1 answer
127 views

Can multiple LANs be configured to work as one when connected together? [closed]

Let's say I have multiple standalone Ethernet networks in a classic NAT configuration. The LANs can be connected together resulting in one big network. What kind of router configuration would enable ...
Duvrai's user avatar
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2 answers
558 views

How Network layer routing actually works in the physical world

This is my first question here, It might be a vague or off topic, I apologise in advance, but I am happy to improve it Basically I have a somewhat decent theoretical understanding of the OSI model. ...
theMyth's user avatar
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2 answers
117 views

Can 2 modems connected to the same router interfere with each other if their web access interface are the same IP address?

Here is information about the network: I have 2 WAN connections to the same ISP which they provided 2 modems for and configured them to be in bridge mode. My MDF router (pfSense) connects both of ...
Dr_Xunil's user avatar
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2 answers
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Why does MPLS use labels to make forwarding decisions instead of destination IP addresses?

I am learning about MPLS at the moment. I know that routers in general make forwarding decisions based on the destination IP addresses and available routes in the routing table. However, with MPLS it'...
Mitrixsen's user avatar
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1 answer
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Layer 2 MPLS VPN versus Layer 3 MPLS VPN

A networking course that I follow briefly mentions Layer 2 and Layer 3 MPLS. I understand the difference between them. However, the question is, are L2/L3 MPLS like two different services that we can ...
Mitrixsen's user avatar
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5 votes
6 answers
1k views

Leased Lines vs MPLS

I am studying about WANs and there's been a mention of several WAN options/technologies. I know that Leased Lines are dedicated connections that are not shared by other customers while MPLS is a ...
Mitrixsen's user avatar
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5 votes
2 answers
754 views

Can a jumbogram (giant data packet) be used at a large scale (in WAN for example)?

There are many scientific paper for Jumbo frame, even more, some real implementations and deployments. But it is not the case for Jumbogram !! Jumbo frame (geant frame) for Layer 2; Jumbogram (geant ...
Lee's user avatar
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1 answer
374 views

Public IP / IP Transit / IP Peering / ASN / Internet Exchange

I am trying to understand the relationship between IP Transit / Peering and having our range of IP If i subscribed to an ISP internet service and the IP range is allocated by the ISP - it is consider ...
Noob's user avatar
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3 answers
537 views

Are WAN and "backbone" same?

As a non-network engineer, I came across the term "backbone". The situation only requires a casual understanding of it, or even fine without it, but I was interested to do a light research. ...
Hiro's user avatar
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1 vote
1 answer
141 views

How does providing IPv4 occur through mobile internet?

I've read that there are 2 types of IPv4 addresses: public ip-address and private ip-address. Public ip is used to connect devices to the internet (WAN). There's always an example about routers that ...
Ivan's user avatar
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2 answers
296 views

Connecting geographically distinct sites using a WAN

I am studying for my CCNA and my current topic is related to WANs, and I need some clarity on certain things. Here is a topology I've quickly built. (Don't mind the IP addressing, I've have purposely ...
Mitrixsen's user avatar
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3 answers
1k views

What is the difference between MPLS, MPLS VPN and IPsec VPN tunnel?

What is the difference between MPLS, MPLS VPN and IPsec VPN tunnel? I know that MPLS is a type of WAN. and IPsec VPN tunnel is an encrypted connection (private) over the internet. But what is MPLS VPN?...
Errefae's user avatar
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1 answer
44 views

What defines WI-FI?

I don’t quite understand what exactly WI-FI is (regarding to the computer network theory). There are many different definitions of this term. Somewhere it's written that it's a wireless LAN technology,...
Ivan's user avatar
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1 vote
1 answer
499 views

can't ping the WAN IP of a router

I learned to use cisco packet tracer and found something confusing but actually this is not about the cisco packet tracer . I'm curious if this apply in real network as well. So i tried building this ...
andio's user avatar
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1 answer
297 views

How can I set up two sub networks that can communicate by LAN but where only one has internet? [closed]

With only two routers, where one has a connection to the internet, is it possible to set up a second sub network that has no access to the internet, but where devices connected to either router can ...
Matt D's user avatar
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2 answers
1k views

How does one determine what the default gateway should be in a multi-router setup?

Trying to set up a network with multiple routers, very similar to what's depicted in this diagram from the FreeBSD handbook: In particular, regarding this specific diagram, what should the default ...
Del-on-stack's user avatar
1 vote
1 answer
74 views

What exactly defines a WAN?

I've found this question but it doesn't seem to answer my question. What is the "technical" definition of LAN and WAN I know that a Wan consists of more LAN's together and MAN's and it's ...
Allan's user avatar
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1 vote
0 answers
528 views

WAN ip address looks like private ip, but whatsmyip shows a public ip address [closed]

Let me preface this by saying that I'm not very good with internet networking, but I tried my best to gather information. So I've been meaning to do some port forwarding to open a server, but I got ...
Andrew's user avatar
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2 answers
275 views

Can two different LANs be part of the same private network? [duplicate]

If you had two geographically dispersed LANs with public IPs that are in a different subnet range to each other, (one is 154.30.24.x/24, and the other is 134.64.9.x/24) if they were physically or ...
Fergus's user avatar
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2 answers
5k views

Switch vs WAN switch

Is there any difference between the normal switch and the WAN Switch? because i read that the WAN switch operate at layer 2 of the OSI model, so what makes it different from the normal switch? is it ...
Colin Jack's user avatar
6 votes
2 answers
2k views

Is a point-to-point T1 line literally a line in real life?

In Packet Tracer this is how we draw a WAN link, or a T1 link: Does the "red line" here literally means there is a single cable connecting the two routers in real life? If no, then what are ...
Noob_Guy's user avatar
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1 answer
69 views

SD-WAN edge and physical high-end router

Are physical routers, who have different management interfaces (SNMP, NETCONF, and so on), able to speak to an SD-WAN controller? In other words, can I have an SD-WAN by establishing a specific SD-WAN ...
A.A's user avatar
  • 551
-1 votes
1 answer
132 views

Why is Cisco router PPPoE client configuration so complicated? [closed]

In some routers like Ubiquiti's UniFi Security Gateway, when you want to connect to internet via PPPoE, all you have to do is go to the web GUI or controller, go to WAN settings, hit the dropdown ...
Noob_Guy's user avatar
  • 491
0 votes
1 answer
227 views

Geographic or Physical Limitations of VLANs

Is it incorrect to have a layer-2 broadcast domain cross long distances or multiple sites?
Ronnie Royston's user avatar
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3 answers
208 views

How are MPLS routers connected to each other?

So MPLS is one of the many ways to connect two or more distant sites. In other words, it is some kind of a "WAN solution". But what is the "WAN solution" for MPLS? Take for example ...
Noob_Guy's user avatar
  • 491
1 vote
1 answer
102 views

Is this how ATM and SONET work?

This is how I visualize how SONET carry ATM, and how ATM carry IP: Is my visualization correct?
Noob_Guy's user avatar
  • 491
2 votes
2 answers
383 views

Why do we need ATM if SONET/SDH can carry IP directly?

If SONET/SDH can carry IP, and ATM rides on SONET/SDH, then why do we need to encapsulate IP inside ATM? That makes "IP over ATM over SONET/SDH". What's its benifit over "IP over SONET/...
Noob_Guy's user avatar
  • 491
0 votes
1 answer
154 views

Is ATM a Wide Area Network?

Is Asynchronous Transfer Mode a wide area network? Or is it just a framing protocol? What I mean by wide area network is that, if there is such a thing called "ATM provider", does it mean ...
Noob_Guy's user avatar
  • 491
0 votes
0 answers
49 views

WAN Frames vs. STS-1 and T1 Frames

I am having trouble understanding the need for WAN frames, such as PPP when using the SONET Protocol or T-Carrier System. Since SONET uses STS-1 frames and T-Carrier uses T1 frames, why is there a ...
Train's user avatar
  • 1
1 vote
2 answers
832 views

Using WAN IP for a host instead

I have a single static public IPv4 address from my ISP. So I understand that i can just forward all traffic using port forwarding to one of my private IPs, but still I am wondering if this is the ...
Tobias's user avatar
  • 113
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0 answers
803 views

Ping over WAN to LAN (and from server to hosts)

I have a network similar to the one shown at the picture below. The main aim is to get connectivity between antivirus server (10.100.10.9) and hosts placed behind their LAN-gateway (network 10.200.1....
Igor Beritsky's user avatar
0 votes
1 answer
371 views

Differences between BGP(routing protocols) and vpn mpls?

I am new to networking, so bear with me, 1-I wanted to clear my query: why do we need BGP or any routing protocols if we have vpn or wan technologies like mpls ? 2-Can't we just run bgp between two ...
user64956's user avatar
1 vote
0 answers
71 views

Why is SD-WAN a more suitable option than MPLS for cloud? [closed]

I keep coming across the statement that because of the growth in cloud computing, SD-WAN is a more suitable option than MPLS for connecting remote sites. Can anyone give me an explanation why?
s h a a n's user avatar
  • 113
2 votes
2 answers
150 views

Is the Internet essentially a network of routers?

Is the Internet nothing but a globally scattered interconnected routers, and that the connections between them could be via any of Leased Line, X.25, Frame Relay, ATM, MPLS, or Ethernet?
Noob_Guy's user avatar
  • 491
2 votes
3 answers
627 views

How are X.25/Frame Relay/ATM/MPLS related to PSTN?

Do X.25/Frame Relay/ATM/MPLS have their own isolated physical infrastructure? Or are they technologies invented to utilize the then existing infrastructure of the PSTN?
Noob_Guy's user avatar
  • 491
0 votes
1 answer
511 views

RV320 router between 2 access points and secondary VLAN [closed]

I have a Cisco RV320 that is sitting between 2 different routers/access points on my network. Essentially: My ISP's router/access point <-----> RV320 <-----> My other access point My ...
tyron's user avatar
  • 101
0 votes
2 answers
2k views

Switch to secondary firewall when WAN interface goes down

We are having two firewalls A and B. The model is FortiGate 60E. Both are running in HA where A is primary and B is secondary. The firewalls are running smoothly and traffic is flowing from the WAN ...
Rishi Agrawal's user avatar
0 votes
2 answers
298 views

Pros and cons of using VPLS instead of using MPLS alone

What are the pros and cons of using VPLS instead of MPLS alone? What are the typical cases where VPLS is used?
Rumesh Madhusanka's user avatar
1 vote
2 answers
115 views

Applying WAN Changes to Juniper Chassis Cluster

I have a Juniper SRX 340 in a chassis cluster state. I am looking to change the WAN IPs used by the firewalls as the ISPs will change. I have GE interfaces that have sub interfaces within them 1,2,20,...
Kevin's user avatar
  • 113
0 votes
1 answer
118 views

Problem Forwarding Port 22 for SSH [closed]

I'm trying to forward port 22 so I can SSH into my PC from a different network but it doesn't seem to be working. I can do ssh mihkel@my_public_ip from the network that the PC is on but it doesn't ...
Mihkel's user avatar
  • 101
0 votes
2 answers
1k views

What is a customer premise equipment when compared to DCE/DTE?

Usually, customer receive only a single device when they buy an Internet connection from an ISP. This device is connected to the ISP via fiber or a DSL line, has several Ethernet ports and provides ...
Nakrule's user avatar
  • 871
0 votes
2 answers
3k views

How to connect multiple devices with identical static IP into a wireless network

I've been searching StackExchange and the Internet for a while looking for a solution for my networking question. Some articles I found are here, here and here, but these don't need to deal with a ...
Marc's user avatar
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