1
vote
1answer
69 views

How did we manage to block connections to our VPS?

For the last week we've been struggling to get connected from inside our network to a VPS where we host some files for users of our product. It's up for everyone else, down for us and not blocked by ...
0
votes
1answer
180 views

HP MSR 30-10a Router - Route Traffic over Default Route

We have a brand new HP MSR 30-10a Router. We have a fairly simple routing situation - we have two IP blocks, one which has a route out. We need things on the first block to go through the router, and ...
0
votes
2answers
116 views

IP Routing with 2 Subnets

We currently have a Cisco ASA on a range with only two usable IP addresses. The Cisco has 217.67.255.31 and the BT NTE box (for the leased line) has 217.67.255.32. (on /32) Now we want to split this ...
0
votes
1answer
42 views

Site-To-Site VPN Failover

Conceptually, how does this work/ would be configured in a Cisco environment, I realise this is quite an open question so please let me narrow it down. Let's say we have two sites: SiteA and SiteB, ...
0
votes
1answer
483 views

MikroTik RouterOS 5.18 Does not connect to internet after restart

I am setting up a RouterOS on an x86 machine. The router is configure and is connected to internet via PPPoE internet connection. I am distributing it to 5 PCs and a Router via RouterOS PC. The setup ...
0
votes
3answers
420 views

Creating my own dial-up internet service

Our company has invested immensely on "machine-to-machine" modems, equipped in embedded machinery over the last decade. These work with old-school internet dial-up service. These machines need to ...
0
votes
1answer
2k views

Clients connected to Cisco router can't access to internet

I'm currently undergoing CCNa academy so I got a "job" from my boss to configure Cisco 871 router. Unfortunately we just finished first semester at academy so there are some things that I'm still ...
3
votes
1answer
438 views

BGP path prepended route not listed anywhere

We have a simple multi-homed setup with two routers that advertise our AS to two ISP. The second ISP (ISP B) is only used for backup when ISP A goes down, so we prepended our AS 3 times on this route. ...
0
votes
1answer
603 views

How to connect to hyperv guest machine by rdp through internet?

I installed hyperv and some client machines. Now i need to connect to any of client machine and host by using rdp through internet. This instruction tell me what i need to configure port forwarding on ...
2
votes
1answer
121 views

Load balancing multiple internet connections

I've got the following scenario: - one low speed and low latency DSL connection (cable) (250kb/s 25ms) - one high speed and high latency DSl connection (satellite) (1250kb/s ~1500ms) Is there a ...
10
votes
3answers
704 views

No internet after dhcp lease renews

Today we had a number of machines stop getting internet access. After a lot of troubleshooting, the common thread is that they all had their dhcp lease renewed today (we're on 8 day leases here). ...
2
votes
2answers
920 views

Using RRAS to bridge two networks

I have the following setup: Server A has two NIC's - one connected to each switch. Server B just has a NIC connected to the internal switch. Server A and Server B can both ping each other. But ...
1
vote
4answers
104 views

Help needed on internet routing

Looking for some good video lectures / book / articles which explains in a simple manner how exactly how packet moves in Internet. Searched the net, but couldnt find a GOOD one. Want to know how ...
0
votes
2answers
133 views

how to setup secure access to a host on internet?

we are planning to setup a source code repo + bug tracker for multiple users across the globe. Hence the network is internet - that is the host has public IP address provided by the ISP. since this ...
18
votes
6answers
770 views

Why do Facebook users sometimes end up on my site when they enter www.facebook.com in their browser?

Every few weeks I get an email (usually a very unpleasant one) or sometimes even a phone call from a Facebook user who believes that I am "hacking" their internet. They come to this conclusion after ...
4
votes
3answers
471 views

Is Internet routing (BGP) fully automated?

If all the routing tables on the Internet would be erased simultaneously, will the routers be able to rediscover them automatically? I'm having an argument with a colleague who says that the RIPE ...
2
votes
2answers
219 views

Route over the public interface or the VPN?

I have a site-to-site VPN between two offices. Office A hosts a web service that Office B wants to access. The web service is accesible from the public internet (http://www.example.com) and on the ...
2
votes
4answers
116 views

routing tables — dell powerswitch 2724

I was hoping to know if there is a way to direct all traffic to a specific url, to the server it corresponds to on our local network with out having to go out into the internet. It would be way more ...
5
votes
2answers
1k views

IP Routing - how does it work again?

Can someone explain how IP routing works to me? E.g. if i ping 123.123.123.123, how does each router know which way to go as shown in a trace route dump.
4
votes
1answer
169 views

Calculating and billing IP multicast usage on the Internet

I've been searching for the reasons why IP multicast isn't widely supported on the Public Internet, and a commonly-cited reason is the difficulty ISPs have in tracking Multicast usage for later ...
2
votes
3answers
366 views

Port forwarding over the Internet

I hope I'm on the right website as it is my first question here!! So here is my situation I have a small server hosted at home behind a DSL line for which I have a static IP. Now I would like to have ...
0
votes
1answer
94 views

New router messed up server 2003 setup

Hey, We were sent a new 2wire router today configured it as best we can to match the old bt voyager. We've also got X static IP's. We've manage to get our webserver on one of the new IP's public ...
0
votes
4answers
346 views

How can I force a computer to go through the internet to talk to another computer on the same network?

Here is the scenario. I have a server appliance that is distributed to my clients (I'll refer to this as the 'appliance'). The appliance talks to my server to get updates. This is a pretty standard ...
9
votes
14answers
31k views

How to securly join two networks together over the Internet?

Let's say there are two locations. Both locations have their own fast Internet connections. How do you join these two networks together such that every computer can see every other computer? Do you ...