I'm trying to connect with ethernet cable two computers - desktop and laptop. What I want to do is transfer a lot of data from one to another. The problem is that I'm doing everything from:

How to network two Ubuntu computers using ethernet (without a router)?

But after that, ping always gives me "Destination host unreachable".

I was searching a while but couldn't figure out what is a reason it doesn't work, maybe it's something about my devices or maybe someone will have another idea.

Ethernet cable I got with my router. There is a text printed on it:

Aurit Data Cable Cat.5 UTP 26AWG 4PAIR AWM PUC 75°C EIA/TIA 568B

It's connecting now my desktop to router, so I can send this question.

My desktop:

System: Ubuntu 12.04

Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 03)

"ethtool -i eth0" output:

driver: r8169

version: 2.3LK-NAPI

firmware-version: rtl_nic/rtl8168d-1.fw

bus-info: 0000:01:00.0

supports-statistics: yes

supports-test: no

supports-eeprom-access: no

supports-register-dump: yes

My laptop:

System: Ubuntu 14.04

Ethernet controller: Qualcomm Atheros AR8162 Fast Ethernet (rev 08)

"ethtool -i eth0" output:

driver: alx

version: 

firmware-version: 

bus-info: 0000:01:00.0

supports-statistics: no

supports-test: no

supports-eeprom-access: no

supports-register-dump: no

supports-priv-flags: no

My iptables are accepting everything.

Any ideas why I cannot reach other computer?

Added #1:

Output of "ifconfig eth0" for my desktop:

eth0      Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:XX  

          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0

          inet6 addr: fe80::225:22ff:fe55:825b/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:1039975 errors:0 dropped:0 overruns:0 frame:0

          TX packets:590190 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:1377007362 (1.3 GB)  TX bytes:54584349 (54.5 MB)

          Interrupt:43 Base address:0xa000

Output of "ifconfig eth0" for my laptop:

eth0      Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:XX  

          inet addr:192.168.2.1  Bcast:192.168.2.255  Mask:255.255.255.0

          inet6 addr: fe80::de0e:a1ff:fef3:676/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

          Interrupt:16