Questions tagged [wan]

For questions about Wide Area Networks (WANs).

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13 views

how to use multiple static ip addresses to my devices over wan useable ip address provided from ISP? [closed]

I have LAN IP pool and WAN IP pool with 1 usable wan IP . in LAN IP pool i have 5 usable IPs. I am using my wan usable IP to my router its working. But I want to use my 5 LAN pool static addressees ...
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3answers
60 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 ...
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2answers
426 views

WAN lines types - understanding leased line/circuit

Studying the WAN lines types, am I right regarding the statements below, or if not, could you correct me please: A real leased line, could be performed with TDM on a line with for example SDH, TDH or ...
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1answer
24 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?
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1answer
67 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/...
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1answer
42 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 ...
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3answers
2k views

Cisco 1921 private LAN can't access internet on WAN interface

I have a Cisco 1921 Router with an private LAN interface, and a public WAN interface. I also have two VPN tunnels configured, one to another colo location and one to AWS. From the LAN side of this ...
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0answers
14 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 ...
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4answers
3k views

How can multiple devices share an IP across the internet?

I do realize that most LANs sit behind a device running NAT, which translates the users private IP address to a public IP address. My question is still if you are trying to connect to a private device,...
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2answers
16k views

pfSense 2.3 How to setup each Lan traffic goes only over specific gateway

I am running a pfSense 2.3 box with 4 NICs. Now i have 2 different ISPs (one Cable & one DSL). How Can i configure, that all traffic from LAN1 goes ONLY over WAN1, and all traffic from LAN2 goes ...
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4answers
15k views

What is a “routable” IP? [closed]

Short bg: I wanted to host a website on my laptop (192.168.0.102) via apache server. I set up port 8080 and forwarded the port that I was able to access it via 192.168.0.102:8080. Then there was a ...
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2answers
59 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 ...
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1answer
375 views

Frame relay, PVC and DLCI

Regarding the frame relay technology, could you confirm to me that traffic using permanent virtual circuit use the same ISP routers in the path for all packets sent ? I'm a little bit confused. Frame ...
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2answers
174 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 ...
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2answers
1k views

Difference between WAN and VPN(tunnels)

I got my CCENT and working on ICND2 to get my CCNA. I am stuck on this topic and am unable to grasp the context. WAN and VPN and how they differentiate. My understanding is we need WAN for "Physical" ...
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2answers
10k views

Can't ping a router's interface which is in a WAN directly connected to my router- (Packet tracer)

Here s a pic from packet tracer What I'm trying to do is to ping Router3's Se2/0 interface from PC0.(Or Router2's Se2/0 interface from PC1) However the ping message gets only as far as the Router2's ...
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0answers
47 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....
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1answer
44 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 ...
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0answers
50 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?
2
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2answers
116 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?
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2answers
198 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?
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1answer
169 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 ...
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2answers
64 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,...
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2answers
150 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?
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1answer
872 views

Load-balancing one VPN-connection over multiple WANs

My internet connection will be provided by 4 different WANs (each 250 Mbit down, 100 Mbit up), which should be load-balanced to one 1 Gbit connection (full duplex, most likely ethernet (should be ...
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1answer
48 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 ...
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2answers
475 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 ...
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2answers
1k 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 ...
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1answer
242 views

How can I accomplish VPN across Dual Wan connections?

How can I accomplish VPN across Dual Wan connections in a optimal way? Idea is to make: Site to site VPN. Make single connection inside the VPN to use full bandwidth of both wan connections using (...
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2answers
58 views

Why do all leaf nodes in an E-Tree service belong in the same subnet?

I'm studying the CCNA R&S at the moment and I'm a bit confused about why E-Tree services require all leaf nodes to belong in the same subnet, despite the leaves only being able to send layer 2 ...
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3answers
4k views

How WANs work and why it is it bad to run DNS and DHCP on a router?

I have some networking questions about isolating networks and why it's bad to run DHCP and DNS on a router and should be run on a server. Question 1: What is the purpose of the WAN interface and how ...
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2answers
190 views

Addressing for a WAN, LAN and DMZ

I was wondering about the addressing for certain types of networking areas... I use 192.168.0.0 for a LAN network, 10.0.0.0 for a WAN and 172.16.0.0 for a DMZ. But I've been confused why a 10.0.0.0 ...
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1answer
58 views

Map of WAN cables in general [closed]

Whenever i search for the physical location and path of WAN connectivity, i only find submarine cables, and a site that seems like a paid service. Is there no free map where i can e.g. show the route ...
4
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4answers
324 views

WAN encapsulation

I am having some trouble understanding why does a WAN link need encapsulation, such as MPLS or frame relay? Is it merely to encrypt the info from one LAN to another LAN across the internet?
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5answers
36k views

How can 2 computers in different network communicate?

Suppose my friend and I are connected to the Internet via some local ISP (not necessarily same), which means we are on different networks, hence our computers have different private IP addresses. Is ...
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2answers
216 views

Creating bandwidth with multiple WAN and LAN ports

I have a network with roughly 50 machines all on one LAN, consisting of Linux, Windows, and server machines. I have an untangled u150 firewall/router. I have the ability to add an additional WAN &...
3
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1answer
128 views

Public and Private IPs

I wondered if someone could explain this to me. At work we have a firewall that connects to the Internet and has an external IP configured on it via DHCP. The firewall's WAN port connects to an ...
16
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12answers
36k views

What would cause high latency anytime there is traffic on WAN?

I have a network that has been experiencing slow internet speeds. After a great deal of troubleshooting, I have determined that any streaming content/downloads will cause the latency of WAN traffic to ...
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1answer
2k views

FortiGate 100A with VLAN on WAN port

I am trying to set up my old FortiGate 100A as a simple router for a small office network. My ISP's incoming PPPoE connection runs on VLAN 100 and I can't seem to get it going on a WAN port of the ...
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1answer
51 views

CSU/DSU's and DSL modems

I read a few times that DSL modem isexample of CSU/DSU. To my understanding CSU/DSU connect digital communication method to digital while DSL modulate digital communication to analog. If so, how can ...
2
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1answer
1k views

packet-switching, circuit-switching, PVC and SVC

I am studying by this book: West, Jill. Network+ Guide to Networks.. [VitalSource]. What I understand from what is explained there is that there are two kind of virtual circuit technologies PVC and ...
2
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1answer
105 views

Wireless Controller 5520 Creating a dynamic interface

I'm hoping to determine the least intrusive way to configuring my WLC. I am working through the GUI interface and have created a new dynamic interface [Controller-> Interfaces] When I went to ...
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1answer
1k views

Access to a server behind the SonicWall from the LAN using Public IP addresses

We have a SonicWall TZ 400 with a Comcast Modem in Bridge Mode. Everything works fine, except the fact that the exposed services on the LAN couldn´t be reached using the public IP of the WAN from the ...
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4answers
10k views

Are ping-times directly related to location/distance?

Suppose I want to determine if an IP is located in my country, without a third-party servvice. Could I estimate that to a certain degree by measuring ping times? Or is it better to look at the number ...
3
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1answer
112 views

WAN failover when links stay up/up

If I have 2 possible outbound paths, 1 primary, 1 secondary, and I obviously need the secondary to come up if the primary fails. The problem I am foreseeing though, if the RF signal fails, the links ...
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1answer
251 views

WAN/Campus network design - Learning purposes

I am trying to build a WAN connecting various LAN's via frame-relay for learning purposes, i do not have that much experience with frame-relay or network design (mainly creating LAN's and connecting ...
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1answer
39 views

Super-noob asked to build a WAN [closed]

Worst case scenario here - software/sysadmin IT guy being asked to build a future proof WAN for 5-6 large sites over 50 mile radius. Must be end-to-end secure as will include personal and medical data....
2
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2answers
1k views

vyos, wan load balancing with one static and one pppoe connection

I have two ISPs, one static and one PPPoE. I use VyOS. I did the configuration with two static IP providers but when it comes to PPPoE I don't know what to write as the next hop for the interface ...
6
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2answers
4k views

Fortigate 100D internet on VLAN wan port

I am fairly new towards Fortigate firewalls and I am trying to set up one FortiGate 100D running firmware v5.0 as a router for a hotel network. I have 2 ISPs using PPPoE connection that runs on VLAN ...
0
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1answer
196 views

Cisco 892 Low WAN Speeds [closed]

I'm getting really not-gigabit-close speeds on my Cisco 892 Router. LAN speeds are fine (750-800Mbps) but WAN speeds are awful. I have a PPPoE connection, and when doing a speedtest I get an average-...