Cisco посмотреть ip маршрутизатора

Часто используемые команды Cisco

Процент загрузки CPU процессами расчитывается по формуле:

Базовые команды конфигурации

mode	Команда	Описание
#	erase startup-config	очистка конфигурации (возврат к заводским настройкам)
(config)#	no service password-recovery	отключение механизма восстановления пароля
(config)#	service password-encryption	хеширует все пароли в конфиге (защищает только от того чтобы никто не подглядел их из-за плеча, если конфиг окажется у злоумышленника расшифровать пароль не составит труда)
(config-line)#	logging synchronous	возвращает каретку в начало следующей строки, после вывода сообщения лога, вы полняется из конфига линий (line vty 0 4 или line vty 5 15)
(config-line)#	transport input ssh	разрешает доступ только по ssh
#	write erase	Очищает стартовую конфигурацию (после перезагрузки устройство загрузится с параметрами по умолчанию)

Команды для работы с файлами и папками

mode	Команда	Описание
#	archive tar /create [имя_архива.tar] [путь к папке]	создать архив tar
#	dir	просмотр содержимого директории
#	show flash:	просмотр содержимого директории
#	cd	переход в директорию
#	mkdir	создание директории
#	copy	копирование файла
#	delete	удаление файла или папки
#	rm	удаление файла или папки
#	more	просмотр содержимого файла
#	verify	проверка контрольной суммы
#

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How To Find Cisco Router IP Address

Some people have gateways others have routers. I have a router which is great because I can access it from anywhere (I use Connectify) and even though I’m not at home [I know this is kinda pointless] I can use it to host web servers or webcams. But up until now I’ve never really thought about how to find Cisco router IP address or frankly any router IP address.

Nowadays Cisco router is one of the most demanding network services. This is widely used for IP Communication. Cisco router has a default IP Address. You can use this address for your router account log-in process. When you need to configure your Cisco router, you must know the IP address. You cannot access the Cisco router’s setup page without using this IP Address.

Finding the default IP Address of your Cisco router is not difficult. There are several methods of finding the Cisco Router default IP Address. I will help to learn those methods in this article.

Finding Cisco Router IP Address

These methods are most applicable for any Windows OS.

Using Web Browser

To find the IP Address using your default browser:

1. At first, have to make sure that your computer is connected to your cisco router’s network.
2. Go to your Web Browser. You can use the (Ctrl+ N) shortcut for launching the web browser.
3. Visit the given link.
4. Scroll down and click “Open” next to the “My Router IP Address” option.
5. If the above step is not working, click the “Click here to detect” option following the image below.
   
6. Find your Wi-Fi router’s IP address.
7. Open the link and input your router account’s “ID” (and “Password” if needed).
   

After finding your router’s IP address, you can configure your router.

Using Command-Line Solution

1. Go to the taskbar.
2. Search for “Command Prompt.”
   
3. Type and enter the “Ipconfig/all” command in the window of the “Command Prompt.”
4. Press the Enter Button.
5. Scroll down and go to the “Default Gateway” section of the command prompt window.
   
6. Note down the Local IP Address from that section.

And, you are done. You can use this same method for windows 7, 8, and 10.

Finding Cisco Router IP Address on Linux

1. Press and hold the Ctrl button along with alt and t to open the command prompt.
2. Write down the following command:
   route
3. Press the “Enter” button.

Now the cisco router IP address will be shown on the screen.

Finding Cisco Router IP Address on OSX

1. Go to the Finder.
2. Open the “Application.”
3. Navigate to Utilities> Terminal.
4. Now write down the following command on the terminal:
   netstat -nr
5. Press the “Enter” button.

Now, you will be able to see the default Cisco router’s IP address on the screen.

How to Find the IP Address of the Router on Mac?

1. Go to the Apple menu from the top-left corner of the screen.
2. Navigate to system preferences> network.
3. In the network tab, click on “Advanced,” located at the bottom of the screen.
4. Click on the “TCP/IP” option.

Here you can easily find the router’s IP Address.

How to Find the IP Address on iPhone/iPad for the router?

1. Navigate to Settings> Wi-Fi.
2. Now, tap on your Wi-Fi network’s name.
3. Go to the “IPV4 Address” section.
4. Note down the router IP Address located beside the “IP Address.”

Summary: Find Cisco Router IP Address

• Find the IP address of a Cisco router by going to the Settings tab and clicking on Management > IP Address.
• Log into the router by entering your username and password.
• Click on the Start button, find the search bar, and type CMD into it. Then press Enter on your keyboard.

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Cisco посмотреть ip маршрутизатора

To get a detailed listing of all the IP-related characteristics of an interface, use the show ip interface command. A common use for this command is to view any secondary addresses that have been assigned to an interface (they do not show up in the standard show interface output).

show ip interface [brief]

Example

Router# show ip interface

Ethernet0 is administratively down, line protocol is down Internet address is 10.10.46.10, subnet mask is 255.0.0.0 Broadcast address is 255.255.255.255 Address determined by setup command MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is enabled Multicast groups joined: 224.0.0.1 224.0.0.2 Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP fast switching on the same interface is disabled IP SSE switching is disabled Router Discovery is disabled IP accounting is disabled TCP/IP header compression is disabled Probe proxy name replies are disabled Gateway Discovery is disabled

Looking at the output section by section:

Ethernet0 is administratively down, line protocol is down

This line is same as the normal show interface output. It indicates the current status of the interface and configured protocol.

Internet address is 10.10.46.10, subnet mask is 255.0.0.0 Broadcast address is 255.255.255.255 Address determined by setup command

These lines give IP address, subnet mask, and broadcast address that the interface is listening for and how that information was attained.

This is the maximum size of a packet going through the interface.

Helper address is not set

This line indicates if an IP helper address has been configured. IP Helper addresses are used when the destination network address for an IP packet is not known, such as for a workstation using the BOOTP protocol.

Directed broadcast forwarding is enabled

This tells you that the interface will forward a broadcast intended for the subnet configured on the interface.

Multicast groups joined: 224.0.0.1 224.0.0.2

This line indicates that the interface has joined the specified multicast groups, the default.

Outgoing access list is not set Inbound access list is not set 

No access lists are being applied to either inbound or outbound datagrams while passing through this interface.

This output indicates that the router will respond to an ARP request not destined for its own MAC address if it knows the network that the ARP request is looking for.

Split horizon is enabled

The interface is following the standard split horizon rule. It will not forward a route it learned from this interface back out this interface.

ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent 

The interface will handle Internet Control Message Protocol (ICMP) messages in the stated manner.

IP fast switching is enabled IP fast switching on the same interface is disabled IP SSE switching is disabled 

These lines indicate how the router is switching packets. Of particular use is noting if fast switching is enabled or not. In some debuging modes, packets will not be able to be analyzed if they are being fast switched.

Router Discovery is disabled

The router discovery protocol Interdomain Policy Routing, or IDRP, is not enabled for this interface.

IP accounting is disabled

IP accounting is not enabled for this interface.

TCP/IP header compression is disabled

TCP/IP header compression is not enabled for the interface.

You can also use the show ip interface command with the optional argument brief to get a quick list of what primary IP addresses have been assigned to all the interfaces in the router, as well as the status of the interface.

Router# show ip interface brief

Interface IP-Address OK? Method Status Protocol Ethernet0 172.16.151.56 YES NVRAM up up Serial0 130.10.1.5 YES NVRAM administratively down down Serial1 unassigned YES unset administratively down down

In the sample output above, notice that two interfaces have assigned IP addresses, but only Ethernet 0 is up/up. Also indicated is the method for each interface getting its address, in this case, nonvolatile RAM (NVRAM) (that is, the configuration file).

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Артём Санников

Данная книга является руководством для начинающих специалистов в области анализа и обработки данных. В книге рассматривается язык SQL и его процедурное расширение PL/SQL от компании Oracle.

Команды для конфигурирования устройств Cisco

Вход/Выход/Перезагрузка

enable — вход в привилегированный режим EXEC

exit — команда для возвращения назад по дереву конфигурирования

Безопасность

enable password — безопасный доступ к привилегированному режиму

enable secret — зашифрованный пароль для доступа к привилегированному режиму

service password-encryption — шифрование паролей enable и console

line console 0 — безопасный доступ к консоли

Справочная информация

router ? — список поддерживаемых протоколов маршрутизатора

Тайм-ауты

exec-timeout — увеличение времени таймаута

SHOW

show — фильтрация выходных данных

show flash — проверка содержимого флеш-памяти

show running-config — Вывод текущей конфигурации коммутатора/маршрутизатора

show ip interface brief — сведения об IP-адресе, портах и интерфейсах устройства

show ip router — вывод таблицы маршрутизации

show vlan — вывод сведений о существующих VLAN.

IPv4

ip address — настройка параметров IPv4 на интерфейсе маршрутизатора

ip route — настройка статического маршрута IPv4

ip default-gateway — шлюз по умолчанию для коммутатора

IPv6

show ipv6 route static — проверка статических маршрутов IPv6

ipv6 route — настройка статического маршрута IPv6

ipv6 address — настройка параметров IPv6 на интерфейсе маршрутизатора

ipv6 unicast-routing — включение пересылки IPv6 пакетов на маршрутизаторе

LOOPBACK

interface loopback — настройка интерфейса loopback на маршрутизаторе

VLAN

vlan — объявление (создание) нового VLAN

name — присвоение имени для VLAN

interface vlan — настройка IP-адреса для интерфейса VLAN коммутатора

Работа с интерфейсами

int range — выбор интерфейсов в указанном диапазоне

Файлы конфигурации

erase startup-config — сброс настроек конфигурации startup-config

copy startup-config flash — сохранение файла загрузочной конфигурации во флеш-память

copy running-config startup-config — сохранение файлов конфигурации в NVRAM

Протокол DHCP

Настройка DHCP пула — Полная настройка DHCP пула на сетевом устройстве

ip dhcp poo l — Создание нового пула DHCP

network — Диапазон сети для пула DHCP

defaul-router — Шлюз по умолчанию для пула DHCP

dns-server — DNS-адрес сервера для пула DHCP

lease — Срок аренды IP-адреса для пула DHCP

domain-name — Адрес домена для пула DHCP

ip dhcp excluded-address — Исключение IP-адреса из пула DHCP

Port-Security

switchport port-security — Активация функции port-security

switchport port-security maximum — Количество MAC-адресов на порт устройства

switchport port-security mac-address sticky — Запись MAC-адреса в рабочую конфигурацию (липкие MAC-адреса)

switchport port-security violation — Запрет на передачу данных для MAC-адресов

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