Перфорация Could'nt через NAT (или NAT не на месте)

Я пытаюсь установить Ethereum для Ubuntu 14.04. Я следовал за упомянутым потоком. Это - описание ошибки, которое я получаю! Возможно, проблема с настройками обхода прокси. Если кто-то мог бы добавить некоторый свет по проблеме...

**Please enter your MASTER password: 
Ethereum (++) 0.9.41
  Code by Gav Wood et al, (c) 2013, 2014, 2015.
Transaction Signer: XE10203TGOLG20FX2X46KEOAQY0J7OND56 (06c45f10-757c-4ac4-1aba-f846def126d7 - 0079eeef)
Mining Beneficiary: XE10203TGOLG20FX2X46KEOAQY0J7OND56 (06c45f10-757c-4ac4-1aba-f846def126d7 - 0079eeef)
Foundation: XE55PXQKKK4B9BYPBGT1XCYW6R5ELFAT6EM (00000000-0000-0000-0000-000000000000 - de0b2956)
  ℹ  12:27:18|p2p  UPnP device: http://172.26.21.17:1990/WFADevice.xml [st: upnp:rootdevice ]

⧎ ✘  12:27:18|p2p  Couldn't punch through NAT (or no NAT in place).

Идентификатор узла:

enode://e31b85cc980158aa5cc5a6b8a8e35e97f29e1dff98592dbb30a4abceec7a90321ac8a3e6228189c00f5f13cca7e56511cfb90913f9e676bf4b8f5a6ac309f927@0.0.0.0:0
⧎ ✘  12:27:18|eth  Error resolving host address... poc-9.ethdev.com:30303 : Host not found (non-authoritative), try again later
⧎ ✘  12:27:18|eth  Error resolving host address... gav.ethdev.com:30300 : Host not found (non-authoritative), try again later

Это - результат для поиска способного кэша ethereum

 root@deadman-Inspiron-3558:/home/deadman# apt-cache search ethereum
console - Ethereum console.
ethereum - Meta-package to install geth (CLI) and other tools
libethereum - Support libraries for cpp-ethereum.
libethereum-dev - Development files for cpp-ethereum (CLI and GUI)
ethereum-gui - Ethereum Go client GUI
cpp-ethereum - The full stack of cpp-ethereum binaries and libraries.
cpp-ethereum-gui - Reference GUI (AlethZero)
libethereum-gui - Support libraries for the AlethZero, AlethOne GUIs and Mix IDE.
ethereum-cli - Ethereum CLI client.
mist - Mist browser, official Ethereum GUI client.
eth - Command line client (eth).
neth - NEthereum ncurses client.
rlp - Ethereum RLP.
testeth - Ethereum testing (testeth).
geth - Ethereum CLI client.
ethminer - Ethereum Miner.
ethkey - Ethereum Key Utility.
ethvm - Ethereum VM Utility.
bootnode - Ethereum bootnode.
evm - Ethereum evm tool.
disasm - Ethereum disasm tool.
rlpdump - Ethereum rlpdump tool.
ethtest - Ethereum ethtest tool.
alethone - AlethOne basic Ethereum GUI
flu - Experimental Ethereum client with Proof of Authority consensus.