Questions tagged [wan]

For questions about Wide Area Networks (WANs).

Filter by
Sorted by
Tagged with
3
votes
1answer
144 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
votes
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 ...
0
votes
1answer
3k 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 ...
0
votes
1answer
74 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
votes
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
votes
1answer
157 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 ...
1
vote
1answer
2k 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 ...
4
votes
4answers
13k 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
votes
1answer
115 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 ...
0
votes
1answer
350 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 ...
-2
votes
1answer
41 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
votes
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
votes
2answers
5k 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
votes
1answer
260 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-...
1
vote
2answers
277 views

How does WAN work?

I understand the basics. WAN is a network that connects multiple LANs together. Usually the router is the connection between the LAN and WAN. But I have some questions books and the internet could not ...
3
votes
8answers
4k views

What is the "technical" definition of LAN and WAN

Most of explanations on internet contend by saying "lan" is over smaller distance, while "Wan" covers wider geography. To make question more clear ? If two computers are on the same "LAN" what is it ...
1
vote
3answers
990 views

Dual WAN with Cisco RV320/325 and openbsd

In our office we have Verizon (ISP) and an OpenBSD. Now We want to add a second ISP (Comcast) using a Cisco RV320/325 Dual Wan Router. So, my question is regarding the communication between Cisco Dual ...
3
votes
2answers
1k views

load balancing with multiple ISP, one router and asa 5520

I connected different two ISPs to the RV340 with dual WAN support. I want to connect the ISP - Router - ASA in the normal way, and connect the L2 Switch after the ASA. I need to know how to do DHCP ...
2
votes
1answer
1k views

Dell SonicWALL - TZ series Dual Wan

Can you use dual-WAN with Active/Passive failover on any of the TZ SonicWALL models?
2
votes
1answer
1k views

Same subnet on two firewalls

I came across a network setup in this way: Cisco device provided by the ISP serving as a bridge between the fibre line and the LAN. Cable coming out from port eth0 of the Cisco above going to a ...
2
votes
1answer
2k views

About BEST and MAX MTU with PPPOE + PPTP

About BEST and MAX MTU with PPPOE + PPTP in the router. I have Has been setup WAN to PPPOE and MTU is 1492, because 1464 is maxed on my ISP. and I have connected PPTP on the same router, and MTU is ...
1
vote
2answers
1k views

Sonicwall NSA 5600 Dual Wan / HA + Dual Switches how to setup fault tolerance and VLANs

I have a client that has purchased two SonicWall NSA 5600s and they would like to run two WAN connections from separate providers into two SonicWalls into two Cisco switches so that they can achieve ...
4
votes
3answers
2k views

Error Detection across OSI layers confusion

Confusion: How does the transmitter know that his information( bits in physical layer, frames in data link layer, packet in network layer ) was transmitted correctly to the receiver? I know that in ...
4
votes
1answer
406 views

Latency in P2P Circuit

I have one P2P Circuit from our HQ to a secondary office. the distance between them is approx 2kms. Earlier when the Circuit was delivered at that time we were having an RTT of 3-4ms. It is a 10Mbps ...
1
vote
3answers
2k views

spanning tree at layer 3

we want to prevent loops in the network be it LAN or WAN. However for layer 2 LAN networks STP is used to prevent looping switches. However at layer 3 TTL field is used. why not use STP for layer 3 ...
3
votes
1answer
1k views

Connecting an SRX chassis cluster to redundant upstream WAN links

I've been tasked with migrating some Juniper SSG 140's in an active/passive cluster to an SRX 340 cluster. I'm very familiar with ScreenOS, but am still learning JunOS. Currently, we're connected to ...
2
votes
1answer
888 views

Multiple Wan Nat with IP SLA

I am trying to setup IP SLA for my WAN interface and want the NAT to be setup to when the link goes down the NAT will switch over. Here is the config: version 15.5 track 1 ip sla 10 reachability ...
1
vote
1answer
288 views

Using an ASE(MPLS) line to route datacenter WAN traffic to office

im trying to route the Internet from our Datacenter to our Office over an AT&T ASE line (similar to an MPLS). At first I was going to just add the office subnets to the router in the datacenter ...
1
vote
1answer
222 views

HSRP - 2 separate Virtual Router for Distribution and WAN?

I've got 2 Core-Multilayer-Switches connected with each other with two cables (trunks). They are also connected with the distribution-switches (and each switch is connected with both core-switches). ...
1
vote
4answers
7k views

MikroTik - same static DHCP lease with one IP address for LAN and WAN [closed]

MY QUESTION IS: Is it possible to use static DHCP leases for same IP addres and two MAC addresses - LAN and WAN - that the host would be able to receive all the time the same IP address (192.168.1....
1
vote
1answer
463 views

SONET/T-Carrier differences - MPLS/VPLS bandwidth

Could someone explain to me simply what is the difference between SONET and T-Carrier? I know that the ISP generally uses SONET on their infrastructure (Ciscopress 2017, 1.2.1.2 section, http://www....
1
vote
1answer
1k views

What problem does Frame Relay or ATM solve that Ethernet does not?

Frame Relay is a technology that exists from 1988 (more or less). Ethernet is older (mid 70's). Why we classify as a WAN technology Frame Relay if Ethernet can do the same (and even better!)? As far ...
1
vote
1answer
83 views

Carrier Ethernet

On my courses slide there is a chapter about this concept. I thought it was some sort of idea about replacing legacy and non-flexible technologies as SONET and so on in favor of Ethernet family ...
1
vote
1answer
327 views

diff btw PTSN and DSL?

I have seen DSL compared to PTSN (public switched phone network). What are some of the major differences? Is there anything about this answer to a similar question [https://www.quora.com/What-is-...
0
votes
2answers
484 views

Set up Failover WAN with Double NAT (SonicWall)

I am trying to set up failover WAN on a SonicWall TZ300. My primary cable connection comes in via static IP (modem is bridged) to interface X1. My cellular backup is also a static IP to interface X2 (...
-2
votes
1answer
636 views

what is POOl in lease line i got 30 wan [duplicate]

Please help me Proposed IP Pool WAN/30 & LAN/29 what is the meaning how computers usable for this connection.this lease line connection optical fiber
1
vote
4answers
3k views

Identifying WAN or LAN side IP addresses on cisco routers

I have a requirement to regularly produce spreadsheet showing Cisco router interface information, in particular bandwidths of each interface and IP addresses. I have access to a network management ...
1
vote
1answer
895 views

Unable to reach public IPs of servers behind ASA 5512

We replaced a Meraki MX with a Cisco ASA, and I'm unable to reach the public IPs of servers behind our firewall now. The server has working Internet access. All packet tracer runs show successful ...
1
vote
1answer
406 views

Unable to properly configure ASA 5512 with WAN IP

I have a /28 block of public IPs from Comcast. I'm trying to put a public IP directly on the ASA outside interface, but when I do I cannot ping 8.8.8.8 or the Comcast modem. Internal communication is ...
1
vote
1answer
213 views

How is inverse ARP configured in frame relay?

I've tried to find an explanation online that just simply tells me how inverse ARP is configured, and I can't seem to find a straight answer for it. Let's use the below diagram as an example. As you ...
1
vote
2answers
2k views

In a 3g/4g private APN network, I can't ping all the address's on the network?

I'm tasked to monitor the connectivity -Health- of a Private APN network, our setup is like this: We have SIM cards , each has a static IP address, we are using a 4G Gateway at each remote site. ...
1
vote
1answer
226 views

WAN project requirements increasing

Okay so I was contracted to provide to design a new WAN topology for quite a large company in my country and designed them a fairly standard IPSec over DMVPN type design. So you can see the above ...
0
votes
1answer
148 views

Pass traffic to ASA from Spokes via Hub

Good afternoon, The network will be MPLS in the future and I am thinking about new design for it. We will have hub router with ASA behind and couple spokes without the need for IPsec (at least for ...
1
vote
2answers
2k views

How to fix this messed up routing scenario with two IP's from same subnet on distinct WAN's?

Today we are managing two big departments of our University and after a political decision, both departments are joining forces on the IT services. Due to this we are trying to unify our Core Network, ...
2
votes
2answers
698 views

Routing between branches

I have always used eBGP (with private AS numbers) to route between branches and headquarter sites. However, after reading the Cisco CCNP ROUTE Foundation Learning Guide, it states that best practice ...
1
vote
1answer
887 views

vSRX : several public addresses on loopback interface

I have an issue when I try to configure several ip addresses on the loopback interface on a vSRX cluster. Here is my setup (in gns3) : vSRX-1 and 2 are in cluster mode. VyOS-1 and 2 are BGP routers ...
3
votes
1answer
279 views

Redundancy with Frame Relay

I wanted to understand how redundancy works when we implement Frame Relay to connect between different office locations. Consider the topology here I have two sites A and B each has a pair of Routers (...
2
votes
2answers
3k views

pfSense - High Availibility Cluster

I'm setting up a High Availability Cluster with two pfSense SG-4860 routers. I have a question about setting up the network. Here is the diagram they provide: I have a question about the WAN part. ...
1
vote
0answers
117 views

Configuring Cisco ISR router as dial-up server

I am working on replacing Cisco AS5350 with Cisco ISR 2900 series , on the old setup I have only one profile to apply for the incoming calls and one IP Pool, but with the new setup I have new ...
1
vote
2answers
288 views

Running office WAN via MPLS connected Datacenter's WAN connection. Thoughts?

Some folks at my work are thinking about getting rid of our office (HQ) WAN line from ATT, increasing the speed of our Datacenter connection and then running the office WAN(Internet) through an MPLS ...