Virtual PC

Dame that’s SMALL

Today’s lab we had to use Microsoft’s virtual PC with DAMN Small Linux (DSL) to network to other class mates computers and at least ping. This OS is only 50Mb big!!!!!

First I had to open Virtual PC (Virtual PC is a free download from windows just use Google to find it) and use the set up wizard to create a new virtual machine (VM). Once your done setting up the defaults in the wizard “start” your new VM. Then you have to import an ISO file in this case it was dsl-4.4.10-initrd.iso. Once we got linux up and working we had to configure the internet address. Mine was 165.48.16.9 with a subnet mask of 255.255.254.0. To do the you go to DSL control Panel/ Netcard Config.
See photo below

Once we got this set up we had to ping our lab partner. This was a little bit harder to find. You have to go to DSL in the left bottom corner find Root shell then type ping just like we had to do for windows. It will keep pinging forever unless you stop it to do this hit esc.

See photo below for ping results

The Three little Access Points

The Three little Access Points

The first wireless AP I looked up was the ultra-light Linksys E1000 wireless N router AP. I did not know that Linksys was a Cisco product. This router has 4 RJ-45 type 10/100 and one RJ-45 “internet” port to hook up to your Internet service provider. These ports also have auto speed negotiating so it will know if your devices run at 10mbps or 100mbps. The wireless supports speed up to 300Mbs while using WPA2. It also has parental controls where you can block website and set what hours of the day you would like it to work. I found this Access point router for 55$ to 80$.

The next wireless access point I looked at was I looked at was the outdoor Cisco Aironet 1310 802.11 b/g. It can act as an access point, a bridge or a workgroup bridge it has two RP-TNC type connectors for extra antennas. It also has two F-type connecter with power injector to convert fro standard 10/100 cables to the Type F coaxal. Supports a 54Mbs data rate and 11Mbs at 20 miles. It support TKIP and AES encryption. I found this Access point router from 675$ to 900$.

The last wireless access point I looked at was I looked at was the outdoor Cisco Aironet 1142 802.11 a/b/g/n. Data Transfer Rate 300 Mbps. Internal integrated Antenna. Interfaces 1 x network / power - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45 1 x management - console - RJ-45. Features Auto-sensing per device, power over Ethernet (PoE), MIMO technology, Wi-Fi Multimedia (WMM) support. It support AES, TLS, PEAP, TTLS, TKIP, WPA, WPA2 encryption. Authentication Method MS-CHAP v.2, EAP-FAST .
Only a 90 day warranty!???
I found this Access point router from 900$ to 1200$.

CCC network tour

Today we took a tour of the network used here at Carteret Community College given by Ken Martin. The network at CCC is a mix of regular old copper networking cable (cat 5 and Cat 6) and fiber optics. The networking cable is used in the buildings to connect the computers in the class rooms to the switches in the networking closets then fiber optic is used to run between the buildings and the main server room.
Our first stop was the network closet on the same floor (3rd) as the class room we sit in the Wayne West building each floor has 2 of these room. The main back bone of the network is 10/100 Cisco 3548 with PoE (Power over Ethernet) to run the phones and security cameras. But new 100/100 Cisco’s are in the works to replace the ageing switches.
Each room had it’s own UPS (Uninterrupted power supply), this is different then other networks I’m seen those used a central huge UPS to power the entire network.

The server room seemed like a mess of wires and servers. This is where Blackboard and the emails servers are.

When we walked in the main server room they were in the process of going to virtualized desktops for the PC in the class rooms.

Wirless Lab

Wireless Lab

Today my lab partner, Jeremy, and I had to set up a D-link DIR wireless N router.

I decided to set up our router with using the sub-netting problem from our test today. So we ended up using 165.36.4.1 as the router IP address with 255.255.255.0 as the subnet mask. The D-link router automatically set the ranges from 165.36.4.100~165.36.4.199. We set our broadcast SSCI to Jeremy&Scott.

After we set up the Router (since his PC was down) we unplugged the RJ-45 cat 5 networking cable and “tried” to install the D-link USB G wireless adapter. The first time we went to install the drivers for this adapter we got an error. So we restarted the PC and tried getting an update for the adapter, but this only uninstalled the current bad drives. So we had to restart the PC again go back to the D-link website and download the diver once more. This time we were able to get the adapter to work, but this only lasted for a few mins before it stopped working again. So to get it to work I had to removed it form the USB port and insert it into another USB port After we did this we had no more trouble for the Adapter. We used WPA and Mac filtering for security. After we had all this set up we were able to ping across and shear a file between the two PCs.

Setting up a VPN Network

Setting up a VPN

This week we had to set up a simulated VPN using at least 4 Subnets using 140.20.0.0 (a class B) as our IP address.

For this lab our network used 3 Routers with cables that could simulate the speeds used by an ISP, as if the routers were located in deferent parts of the world. On each side of the router was a switch (So we used 2 switches)

The first thing we had to sort out is how many host bits we would need to get closest to the 4 SN we needed. In this case it was 3, (2³-2=6). That would made our subnet mask

111 00000.00000000 = 255.255.224.0 Subnet mask

128	64	32	16	8	4	2	1
1	1	1	0	0	0	0	0
128	64	32	16	8	4	2	1
0	0	0	0	0	0	0	0

The side of the class I was on was assigned the 4^th subnet, and I was assigned the 4^th IP address on that subnet.
011 00000.00000100 = 140.20.96.3 My IP address

128	64	32	16	8	4	2	1
0	1	1	0	0	0	0	0
128	64	32	16	8	4	2	1
0	0	0	0	0	0	1	1

Just like the switch lab we have to configure our computers with the proper IP address.

See image Setting up the IP

Next we watched as the instructor set up the routers using “putty”. It was really neat see all the commands used.

Please check out my video on how this was done.

Once we got everything setup we had to ping the other students. Just like in the switch lab other students were unable to ping me. This time I was able to fix it. I had to turn windows firewall ON then turn it off, then other students were able to ping me.

My ping(s) Screen shot.