Putty connection timed out

[tadejkkk]

At the moment i don't have a screen and a kayboard at home, i only have my laptop. I have to set up my RPi, and used the remote access via SHH. The network setting are fine i guess because when i ping my RPi i get a lot of response. But when i try connecting via Putty the connection times out. What is the problem?

[lmarmisa]

Maybe the problem is related to the Windows firewall.

Disable it for testing if this is the cause of your problem. If so, enable it again and add a exception to the firewall for putty.

[oliv93]

What command line do you use to ping your Rpi without knowing your IP adress?

[DougieLawson]

I like Fing
http://www.overlooksoft.com/getfing4win

I also like ARP Monitor
http://binaryplant.com/

You can do the sledgehammer ping

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FOR /L %i IN (1,1,254) DO ping -n 1 10.1.1.%i | FIND /i "Reply" | FIND /i /v "unreachable" >> %temp%\ip_addrs.txt
type %temp%\ip_addrs.txt

If you are a complete masochist you could try installing nmap on Windows.

[tadejkkk]

I turned the firewall off and made an exception and it still timmes out. I know the IP adress because i set it up in cmdline in raspbian boot. I set it up at 192.168.1.3 and ping it using cmd and get response. I don't know why it doesn't want to connect. I also got the same IP using ARP monitor.

[RaTTuS]

what is your laptop IP
and what is your router IP

[tadejkkk]

I turn the wifi off, my IPv4 adress is 169.254.102.250. I put my SD card into the reader and i added the line ip=169.254.0.2 into cmdline.txt as instructed. Now when i ping the adress 169.254.0.2 in cmd i don't get any response.

[lmarmisa]

The IP address 169.254.102.250 is not a private address. This is a public IP address.

Therefore your laptop is not connected to your LAN but directly to the Internet.

Please, give us some information about your network architecture (router, RPi network interface, laptop network interface, internet connection type).

[DougieLawson]

The IP address 169.254.102.250 is not a private address. This is a public IP address.

Er, no it's not. It's the IPv4LL network. http://tools.ietf.org/rfc/rfc6890.txt

[tadejkkk]

Laptop IP: 192.168.1.2, Router IP: 192.168.1.1, Local IP: 169.254.102.250

[RaTTuS]

Laptop IP: 192.168.1.2, Router IP: 192.168.1.1, Local IP: 169.254.102.250

ok 169 and 192 are not on the same network
if your RPi is connected to your router and not direct to your PC then you need an address like 192.168.1.3 [or 3 - 254]

if you are doing something else can you say how your network is wired up
wired ? wireless ?

[tadejkkk]

I tried both 169... and 192... I'm on a laptop with a wifi connection and have my RPi directly connected to the computer.

[RaTTuS]

ok look at
http://www.raspberrypi.org/forums/viewt ... 31&t=59398

[tadejkkk]

I already did, i used the instructions linked in that topic.

[RaTTuS]

are you using internet connection sharing ?

[tadejkkk]

No.

[lmarmisa]

You are connecting your laptop and your RPi directly by means of an Ethernet cable.

The main LAN is the subnet 192.168.1.0/24 (wifi). You have added a second subnet that connects your laptop and RPi.

You should assign a different subnet number to this Ethernet subnet. For example, 192.168.2.0/24 (Ethernet).

You have to configure manually the IP addresses of both sides (laptop and RPi) on the Ethernet subnet.

Configure manually the Ethernet interface (do not change the windows wifi interface!!! modify only the config of the Ethernet interface!!!) with a static IP address following these instructions: http://kb.mit.edu/confluence/display/is ... IP+Address

Use these parameters:

IP address: 192.168.2.1
Subnet mask: 255.255.255.0
Default gateway: none
DNS: 8.8.8.8

If you have a Linux system and a SD card reader, you will be able to edit the file /etc/network/interfaces located in the SD card of RPi. The content should be:

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auto lo

iface lo inet loopback
iface eth0 inet static

address 192.168.2.2
netmask 255.255.255.0
network 192.168.2.0
broadcast 192.168.2.255
gateway 192.168.2.1

allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp

If you are unable to edit such file because you have no Linux system available, edit the file cmdline.txt and append this text to the end of the line:

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ip=192.168.2.2::192.168.2.1:255.255.255.0:rpi:eth0:off

Finally you should enable the IP routing feature on your laptop:

http://www.wikihow.com/Enable-IP-Routing

[tadejkkk]

I did as instructed. When i check ipconfig/all the routing is enabled, wifi network IP: 192.168.1.2, Ethernet IP: 192.168.2.1 and i add the command ip=192.168.2.2 in the cmdline.txt on the RPi SD card. But when i ping 192.168.2.2 i get "destination host unreachable".

[lmarmisa]

I edited the cmdline.txt line on my last post adding more parameters according to this link:

http://www.raspberrypi.org/forums/viewt ... 50#p229450

Please, try to include this additional info in cmdline.txt.

Do you see LED activity on your RPi while your laptop pings?

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ping -t 192.168.2.2

EDIT: Please, run this command on your laptop and send the output:

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route print

[tadejkkk]

LNK, and ACT are blinking the others are turned on.

===========================================================================
Interface List
14...08 ed b9 b8 57 bd ......Atheros AR9485WB-EG Wireless Network Adapter
13...30 f9 ed b1 ac 0f ......Realtek PCIe GBE Family Controller
12...08 ed b9 b8 57 be ......Bluetooth Device (Personal Area Network)
1...........................Software Loopback Interface 1
20...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
19...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
18...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3
15...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.4 25
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.1.0 255.255.255.0 On-link 192.168.1.4 281
192.168.1.4 255.255.255.255 On-link 192.168.1.4 281
192.168.1.255 255.255.255.255 On-link 192.168.1.4 281
192.168.2.0 255.255.255.0 On-link 192.168.2.1 276
192.168.2.1 255.255.255.255 On-link 192.168.2.1 276
192.168.2.255 255.255.255.255 On-link 192.168.2.1 276
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.2.1 276
224.0.0.0 240.0.0.0 On-link 192.168.1.4 281
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.2.1 276
255.255.255.255 255.255.255.255 On-link 192.168.1.4 281
===========================================================================
Persistent Routes:
None

IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
15 58 ::/0 On-link
1 306 ::1/128 On-link
15 58 2001::/32 On-link
15 306 2001:0:9d38:6ab8:2c9e:1434:a671:1c33/128
On-link
13 276 fe80::/64 On-link
14 281 fe80::/64 On-link
15 306 fe80::/64 On-link
14 281 fe80::10cc:3833:356b:c1ff/128
On-link
15 306 fe80::2c9e:1434:a671:1c33/128
On-link
13 276 fe80::b9c1:50ca:c59:66fa/128
On-link
1 306 ff00::/8 On-link
15 306 ff00::/8 On-link
13 276 ff00::/8 On-link
14 281 ff00::/8 On-link
===========================================================================
Persistent Routes:
None

[lmarmisa]

I see a problem related to metrics.

The default route has assigned a metric 25 (interface 192.168.1.4):

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0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.4 25

The specific route for subnet 192.168.2.0/24 has a higher metric 276 (interface 192.168.2.1):

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192.168.2.0 255.255.255.0 On-link 192.168.2.1 276

If more than one rule are matched, the system will select the route with the lowest metric, in your case, the default route.

This is the reason because the traffic is not correctly routed to your RPi by your laptop. Assign a lower metric to the specific rule 192.168.2.0 (24 or less) and the routing will work as expected.

[tadejkkk]

How do i assign the metric?

[lmarmisa]

Select Local Area Connection (Ethernet interface) -> Properties -> IPv4 -> Properties -> Advanced. Then untick automatic metric and set the value of interface metric to, for example, 1.

Type again the command

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route print

and verify that metrics are correct.

You will see a line similar to this:

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192.168.2.0 255.255.255.0 On-link 192.168.2.1 1

[tadejkkk]

I brought home a hdmi monitor and set the ip in raspbian and it works fine. What do i have to do now to start using my internet connection of my laptop wifi on SSH?

[HansB]

Hello,

I'm a starting RPI user and have bought it together with a Z-Wave USB stick.
In the Putty terminal with SSH mode I get the following message:
"Putty Fatal error [Network error: Connection timed out]"

Network lay-out:
IP address router: 192.168.1.25
IP address RPI: 192.168.1.19

I can ping to the RPI and get 4 received out of 4 messages.
And when I enter the IP address of the RPI in internet explorer added wit :8080, like 192.168.1.19:8080 I get the screen with Domoticz, so I get into contact with the RP. But the screen is empty. I don't get the message that there is no hardwware conected yet and I don't get the possibility to add hardware in the hardware configuration.

Also the telnet command in the cmd dos box, gives: Could not open connection to the host, on port 22: Connection failed.

So as a starter I'm out of possible solutions.

Can anybody assist and propose a solution to this communication issue.

Thanks in advance,

Hans