Hello guys, i have identified a situation at my work place and i would like some advice in how to understand the situation.
All The PCs and Servers have as Gateway: 220.127.116.11 (The routers address).
Now as you can see both servers have a classfull Subnet mask, whereas the PCs cluster is subnetted, but all the PCs can ping the Servers and Vice-Versa, now I understand why this happens, what im trying to find out is, why is this implemented at my work place?
We dont have network technicians and im almost done taking my CCNA, what I wanted to know is:
Is this implemented to serve a specific purpose?
Or is this just plain bad network design and if this is the case what problems can this bring to the network?
From my understanding the servers should both be connected to a separate Router that per turn connects to the main router.
I imagine the servers are in a separate VLAN hence they have their own broadcast domain, and perhaps they're part of a remote branch office?
That might be correct, yes, we do have offices abroad, and VPN enabled on this branch.
So would you say this is the best approach and everything is correct with this network design?
I suppose it's correct then. You may not have in-house network technicians, but the comany may be contracting with a network company.
Btw, is that the outside global unique address?
From looking at the picture, your assigned network is 18.104.22.168/19 with a range of IP address from 22.214.171.124 to 126.96.36.199. All of the configured IP addresses (router, servers and PCs) fall within this range.
However, it appears to me that whoever configured the servers IP address forgot to input the "correct" mask and left the default mask. When you configure the IP address of 188.8.131.52 on a windows PC or server the "default" mask entered is 255.255.0.0. Why? Because it is a "Class B" address.
Clearly this is incorrect and should in my opinion be fixed to 255.255.224.0 on the servers.
Just my 2-cents
But is there a problem with the servers? Are they redundant? Because if nobody is complaining then they must be serving a purpose. Would be interesting to ask someone at your workplace and find out.
Well the network is somewhat unstable and unreliable, sometime very slow, sometime there is packet losses, high latency, and sometime it takes 2 or 3 minutes for a skype message to someone on the internal network where i can skype some of my friends ( outside the network unrelated to work) instantly.
That still doesn't explain what's the purpose of the servers, I doubt they cause packet loss.
Skype issues are not related to your network, Skype has this problem of messages arriving late, even sometimes never arriving at all, everyone I know is reporting to have this issue. I even had friends miss out on job interviews over Skype because neither side was receiving the messages. Microsoft messenger works better, now that Microsoft has acquired Skype I hope they sort it out.
You may have connectivity with the servers, but there can be problems with some applications traffic. Since you mention packet loss and slow responses. Are the branch offices use ip address in same range as configured in the picture? By the way those are public ips and you should mask them when you post.