Network Troubles

2015-08-30 Thread smac0031
I have been having trouble with my network. It runs really slow.
I have the wep enabled on my router which it a Netgear WNDR 3700v4.

I know mostly nothing about this. I did find the network logs and noticed 
my system is routinely under land attack, whatever that is.

Considering I have Charter as my ISP and it is supposed to be the fastest
internet in these parts according to their ads. They have a network tool
that runs flash and I have a DA G4 which won't run flash I have no network
tool.

This is my log from today.

[DHCP IP: 192.168.1.4] to MAC address 68:ae:20:16:ab:e7, Sunday, August 30, 
2015 12:46:03
[DHCP IP: 192.168.1.4] to MAC address 68:ae:20:16:ab:e7, Sunday, August 30, 
2015 12:43:27
[Access Control] Device MARKS-IPHONE with MAC address 68:AE:20:16:AB:E7 is 
allowed to access the network, Sunday, August 30, 201
[DoS Attack: ACK Scan] from source: 208.73.181.192, port 5223, Sunday, 
August 30, 2015 12:43:02
[UPnP set event: add_nat_rule] from source 192.168.1.9, Sunday, August 30, 
2015 12:42:38
[DoS Attack: Land Attack] from source: 255.255.255.255, port 67, Sunday, 
August 30, 2015 12:42:14
[admin login] from source 192.168.1.5, Sunday, August 30, 2015 12:41:58
[DoS Attack: ACK Scan] from source: 208.73.181.192, port 5223, Sunday, 
August 30, 2015 12:41:58
[Access Control] Device Unknown with MAC address 00:03:93:48:04:B2 is 
allowed to access the network, Sunday, August 30, 2015 12:
[Time synchronized with NTP server] Sunday, August 30, 2015 12:41:43
[WLAN access rejected: incorrect security] from MAC address 
68:ae:20:16:ab:e7, Sunday, August 30, 2015 12:41:38
[Access Control] Device TIVO-746000190A8E3FC with MAC address 
00:11:D9:3F:1F:F7 is allowed to access the network, Sunday, August
[Access Control] Device TIVO-240E063F81E with MAC address 
00:05:1B:00:77:E0 is allowed to access the network, Sunday, August
[Access Control] Device GOFLEX with MAC address 00:10:75:2A:51:87 is 
allowed to access the network, Sunday, August 30, 2015 12:4
[Initialized, firmware version: V1.0.2.78] Sunday, August 30, 2015 12:40:56


I have an iPhone, I have 2 TIVOs I also have a NAS drive. I have a G5 on my 
system, which I don't use.

I saw a C/Net video some time ago interviewing some network smart guy who 
suggested the best protection
for it would be WEP something or other. I can't specifically say what it is 
because it has been a year or
two but when I saw this I activated WEP standard this guy talked about.
I made sure of that. I don't know what is going on. I use the latest 
TenFourFox for a browser.

It is usually hopelessly slow.
Does anybody have any ideas. This would be greatly appreciated.

Thankyou,
Mark

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Re: Network Troubles

2015-08-30 Thread Bruce Johnson

 On Aug 30, 2015, at 2:21 PM, smac0031 m.smurph...@gmail.com wrote:
 
 I have been having trouble with my network. It runs really slow.
 I have the wep enabled on my router which it a Netgear WNDR 3700v4.
 

WEP is a very poor protocol to use nowadays, it can be cracked quite simply; 
you should instead use WPA, which all your devices should handle. WEP/WPA also 
only applies to devices connecting to the router manually, and really won’t 
affect the speed of the internet.

 I know mostly nothing about this. I did find the network logs and noticed 
 my system is routinely under land attack, whatever that is.
 

Pretty much anything with an outward-facing IP address is hit all the time, and 
unless there’s an enormous number of them in the log (as in nothing but ‘land 
attack’ entries for hundreds and hundreds of entries, coinciding with your 
network slowness) they’re nothing to be worried about.

 Considering I have Charter as my ISP and it is supposed to be the fastest
 internet in these parts according to their ads.

Yeah, welcome to the wonderful world of lying, I mean advertising.

 They have a network tool
 that runs flash and I have a DA G4 which won't run flash I have no network
 tool.

Try DSLReports.com they have tools that do not require flash.

 
 This is my log from today.
 
 [DHCP IP: 192.168.1.4] to MAC address 68:ae:20:16:ab:e7, Sunday, August 30, 
 2015 12:46:03
 [DHCP IP: 192.168.1.4] to MAC address 68:ae:20:16:ab:e7, Sunday, August 30, 
 2015 12:43:27
 [Access Control] Device MARKS-IPHONE with MAC address 68:AE:20:16:AB:E7 is 
 allowed to access the network, Sunday, August 30, 201
 [DoS Attack: ACK Scan] from source: 208.73.181.192, port 5223, Sunday, August 
 30, 2015 12:43:02
 [UPnP set event: add_nat_rule] from source 192.168.1.9, Sunday, August 30, 
 2015 12:42:38
 [DoS Attack: Land Attack] from source: 255.255.255.255, port 67, Sunday, 
 August 30, 2015 12:42:14
 [admin login] from source 192.168.1.5, Sunday, August 30, 2015 12:41:58
 [DoS Attack: ACK Scan] from source: 208.73.181.192, port 5223, Sunday, August 
 30, 2015 12:41:58
 [Access Control] Device Unknown with MAC address 00:03:93:48:04:B2 is allowed 
 to access the network, Sunday, August 30, 2015 12:

Does the MAC address here correspond to any of your devices? If not, someone’s 
gotten on, likely via cracking WEP.

I would connect a computer to a wired port on the router, turn off the wifi, 
reset the security to WPA and set a new password. To be doubly sure (and this 
is only a non-annoying option if you only have a handful of devices) is to 
specifically allow only your devices to connect to the wifi via MAC Address 
restrictions. 

To be absoluetly sure, I would consult the documentation for the router and 
reset it entirely to factory settings; then disable WEP, enable WPA, with a 
strong password, and restrict local network access by MAC address.

You can see a bunch of your devices identified in the logs so they’ll be easy 
to add. 

 
 It is usually hopelessly slow.

All websites, some websites? Between devices on your local network? Computer to 
computer? Computer to NAS?

 Does anybody have any ideas. This would be greatly appreciated.

Ok, the first thing to do is to identify your bottleneck.

The VERY first thing I’d do is restart both your cable modem and your router 
(if they’re separate devices.) Consumer level routers are generally poor 
performers over long periods of time. If a reset speeds up your internet, it’s 
probably time to start looking for a new router.

Shut off everything but one device (either your iPhone or the Mac, either the 
G4 or the G5.Personlly I’d use the G5 to eliminate system performance issues.

Then go to http://www.dslreports.com or http://speedof.me to test your speed 
without using Flash. This will tell you if your slowness is your network.

If those tests tell you your network speed is ok, then the issue is your 
browsers/systems or the sites your visiting, most likely.

-- 
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs

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