source address
Смотреть что такое «source address» в других словарях:
source address — The address portion of a packet or datagram that identifies the sender. See also destination address … Dictionary of networking
Source-specific multicast — (SSM) is a method of delivering multicast packets in which the only packets that are delivered to a receiver are those originating from a specific source address requested by the receiver. By so limiting the source, SSM reduces demands on the… … Wikipedia
Source routing — In computer networking, source routing allows a sender of a packet to specify the route the packet takes through the network.With source routing the entire path to the destination is known to the sender and is included when sending data. Source… … Wikipedia
Address resolution protocol — Pour les articles homonymes, voir ARP. Pile de protocoles 7 • Application 6 • … Wikipédia en Français
Address Point — is a mapping/GIS data product supplied by Great Britain s national mapping agency, Ordnance Survey. It is based on the UK’s postal mail organisation, the Royal Mail, list of postal addresses, Postcode Address File (PAF). The most significant… … Wikipedia
Address — may refer to:*A memory address, a unique identifier for a memory location at which a computer can store a piece of data for later retrieval *A network address, the coded representation of the source or destination of a message (e.g. MAC addresses … Wikipedia
Address Resolution Protocol — Pour les articles homonymes, voir ARP. Pile de protocoles 7. Application 6. … Wikipédia en Français
Address Resolution Protocol — In computer networking, the Address Resolution Protocol (ARP) is the method for finding a host s hardware address when only its Network Layer address is known. ARP is defined in RFC 826. [RFC 826 Address Resolution Protocol, a.k.a. STD 37] It is… … Wikipedia
Source port — This article is about software ported by the associated fan community. For software ported by the original developer, see porting. The term source port can also refer to the port from which a packet is sent, e.g. a TCP port. A source port is a… … Wikipedia
Source reduction — According to the EPA, source reduction refers to any change in the design, manufacture, purchase, or use of materials or products (including packaging) to reduce their amount or toxicity before they become municipal solid waste.The Federal Trade… … Wikipedia
address — [14] Address originally meant ‘straighten’. William Caxton, for example, here uses it for ‘stand up straight’: ‘The first day that he was washed and bathed he addressed him[self] right up in the basin’ Golden Legend 1483. This gives a clue to its … The Hutchinson dictionary of word origins
source address
Смотреть что такое «source address» в других словарях:
source address — The address portion of a packet or datagram that identifies the sender. See also destination address … Dictionary of networking
Source-specific multicast — (SSM) is a method of delivering multicast packets in which the only packets that are delivered to a receiver are those originating from a specific source address requested by the receiver. By so limiting the source, SSM reduces demands on the… … Wikipedia
Source routing — In computer networking, source routing allows a sender of a packet to specify the route the packet takes through the network.With source routing the entire path to the destination is known to the sender and is included when sending data. Source… … Wikipedia
Address resolution protocol — Pour les articles homonymes, voir ARP. Pile de protocoles 7 • Application 6 • … Wikipédia en Français
Address Point — is a mapping/GIS data product supplied by Great Britain s national mapping agency, Ordnance Survey. It is based on the UK’s postal mail organisation, the Royal Mail, list of postal addresses, Postcode Address File (PAF). The most significant… … Wikipedia
Address — may refer to:*A memory address, a unique identifier for a memory location at which a computer can store a piece of data for later retrieval *A network address, the coded representation of the source or destination of a message (e.g. MAC addresses … Wikipedia
Address Resolution Protocol — Pour les articles homonymes, voir ARP. Pile de protocoles 7. Application 6. … Wikipédia en Français
Address Resolution Protocol — In computer networking, the Address Resolution Protocol (ARP) is the method for finding a host s hardware address when only its Network Layer address is known. ARP is defined in RFC 826. [RFC 826 Address Resolution Protocol, a.k.a. STD 37] It is… … Wikipedia
Source port — This article is about software ported by the associated fan community. For software ported by the original developer, see porting. The term source port can also refer to the port from which a packet is sent, e.g. a TCP port. A source port is a… … Wikipedia
Source reduction — According to the EPA, source reduction refers to any change in the design, manufacture, purchase, or use of materials or products (including packaging) to reduce their amount or toxicity before they become municipal solid waste.The Federal Trade… … Wikipedia
address — [14] Address originally meant ‘straighten’. William Caxton, for example, here uses it for ‘stand up straight’: ‘The first day that he was washed and bathed he addressed him[self] right up in the basin’ Golden Legend 1483. This gives a clue to its … The Hutchinson dictionary of word origins
source address
Тематики
адрес источника (данных)
—
[Е.С.Алексеев, А.А.Мячев. Англо-русский толковый словарь по системотехнике ЭВМ. Москва 1993]
Тематики
адрес операнда
адрес ячейки памяти
—
[Е.С.Алексеев, А.А.Мячев. Англо-русский толковый словарь по системотехнике ЭВМ. Москва 1993]
Тематики
Синонимы
адрес отправителя
Адрес, из которого получено сообщение или данные.
[http://www.lexikon.ru/dict/net/index.html]
Тематики
Смотреть что такое «source address» в других словарях:
source address — The address portion of a packet or datagram that identifies the sender. See also destination address … Dictionary of networking
Source-specific multicast — (SSM) is a method of delivering multicast packets in which the only packets that are delivered to a receiver are those originating from a specific source address requested by the receiver. By so limiting the source, SSM reduces demands on the… … Wikipedia
Source routing — In computer networking, source routing allows a sender of a packet to specify the route the packet takes through the network.With source routing the entire path to the destination is known to the sender and is included when sending data. Source… … Wikipedia
Address resolution protocol — Pour les articles homonymes, voir ARP. Pile de protocoles 7 • Application 6 • … Wikipédia en Français
Address Point — is a mapping/GIS data product supplied by Great Britain s national mapping agency, Ordnance Survey. It is based on the UK’s postal mail organisation, the Royal Mail, list of postal addresses, Postcode Address File (PAF). The most significant… … Wikipedia
Address — may refer to:*A memory address, a unique identifier for a memory location at which a computer can store a piece of data for later retrieval *A network address, the coded representation of the source or destination of a message (e.g. MAC addresses … Wikipedia
Address Resolution Protocol — Pour les articles homonymes, voir ARP. Pile de protocoles 7. Application 6. … Wikipédia en Français
Address Resolution Protocol — In computer networking, the Address Resolution Protocol (ARP) is the method for finding a host s hardware address when only its Network Layer address is known. ARP is defined in RFC 826. [RFC 826 Address Resolution Protocol, a.k.a. STD 37] It is… … Wikipedia
Source port — This article is about software ported by the associated fan community. For software ported by the original developer, see porting. The term source port can also refer to the port from which a packet is sent, e.g. a TCP port. A source port is a… … Wikipedia
Source reduction — According to the EPA, source reduction refers to any change in the design, manufacture, purchase, or use of materials or products (including packaging) to reduce their amount or toxicity before they become municipal solid waste.The Federal Trade… … Wikipedia
address — [14] Address originally meant ‘straighten’. William Caxton, for example, here uses it for ‘stand up straight’: ‘The first day that he was washed and bathed he addressed him[self] right up in the basin’ Golden Legend 1483. This gives a clue to its … The Hutchinson dictionary of word origins
Source адрес что это
Функция IP Filtering позволяет фильтровать проходящий через маршрутизатор трафик по IP-адресам и портам. Рассмотрим некоторые примеры.
Пример 1
Задача. В локальной сети (см. рис.1) три компьютера, необходимо запретить доступ в Интернет одному из них (PC1).
Рис. 1. Использование Outgoing Filter. Схема сети.
Решение.
1. Зайдите в раздел «Advanced Setup->Security->IP Filtering», выберите пункт «Outgoing» и нажмите на кнопку «Add» для создания нового правила.
Примечание!
Если раздел Security в меню отсутствует, проверьте настройки WAN-интерфейса и убедитесь в том, что модем настроен на работу в режиме маршрутизатора.
Для данного примера необходимо запретить доступ только для PC1, поэтому правило будет таким:
Filter Name: myrule
Protocol: ALL
Source IP address: 192.168.1.2
Source Subnet Mask (or end ip address): оставляем поле пустым
Source Port Type: оставляем поле пустым
Destination IP address: оставляем поле пустым
Destination Subnet Mask (or end ip address): оставляем поле пустым
Destination Port: оставляем поле пустым
После заполнения всех полей нажмите кнопку «Save/Apply».
3. Правило создано, теперь остается сохранить настройки и перезагрузить маршрутизатор. «Management > Save/Reboot > Save/Reboot».
Пример 2
Задача. В локальной сети (см. рис.1) три компьютера, необходимо запретить доступ в Интернет всем компьютерам, кроме одного (PC1).
Решение. Зайдите в раздел «Advanced Setup->Security->IP Filtering», выберите пункт «Outgoing». Создайте правило:
Filter Name: myrule
Protocol: ALL
Source IP address: 192.168.1.3
Source Subnet Mask (or end ip address): 192.168.1.254
Source Port Type: оставьте поле пустым
Destination IP address: оставьте поле пустым
Destination Subnet Mask (or end ip address): оставьте поле пустым
Destination Port: оставьте поле пустым
Поскольку, IP- адрес компьютера PC1 не входит в диапазон адресов 192.168.1.3 — 192.168.1.254, Интернет будет доступен только компьютеру PC1.
Пример 3
Задача. В локальной сети (см. рис.2) три компьютера. В Интернете находится сервер с IP-адресом 84.25.40.25. Необходимо всем компьютерам запретить к нему доступ.
Рис. 2. Использование Outgoing Filter. Схема сети.
Решение. Зайдите в раздел «Advanced Setup->Security->IP Filtering», выберите пункт «Outgoing». Создайте правило:
Filter Name: myrule
Protocol: ALL
Source IP address: оставьте поле пустым
Source Subnet Mask (or end ip address): оставьте поле пустым
Source Port Type: оставьте поле пустым
Destination IP address: 84.25.40.25
Destination Subnet Mask (or end ip address): оставьте поле пустым
Destination Port: оставьте поле пустым
Пример 4
Задача. В локальной сети (см. рис.2) три компьютера. Необходимо всем компьютерам запретить получение почты через POP3 протокол.
Решение. Для этого запретите соединения на 110 порт. Зайдите в раздел «Advanced Setup->Security->IP Filtering», выберите пункт «Outgoing». Здесь создайте правило:
Filter Name: myrule
Protocol: ALL
Source IP address: оставьте поле пустым
Source Subnet Mask (or end ip address): оставьте поле пустым
Source Port Type: оставьте поле пустым
Destination IP address: оставьте поле пустым
Destination Subnet Mask (or end ip address): оставьте поле пустым
Destination Port: 110
Пример 5
Задача. В локальной сети (см. рис.2) три компьютера. В Интернете находится сервер с IP-адресом 84.25.40.25. Необходимо заблокировать Интернет на всех компьютерах, но при этом разрешить доступ только на этот сервер.
Решение. Для этого правила измените глобальную политику с разрешения (Accept) на запрет (Block).
Зайдите в раздел «Advanced Setup->Security->IP Filtering», выбирите пункт «Outgoing».
Нажмите на «change default policy».
В окне видно, что глобальная политика сменилась на «Block»:
Создайте правило:
Filter Name: myrule
Protocol: ALL
Source IP address: оставьте поле пустым
Source Subnet Mask (or end ip address): оставьте поле пустым
Source Port Type: оставьте поле пустым
Destination IP address: 84.25.40.25
Destination Subnet Mask (or end ip address): оставьте поле пустым
Destination Port: оставьте поле пустым
Пример 6. Использование «Incoming Filter»
Задача. Схема сети представлена на рис. 3. Необходимо для компьютера PC4 разрешить доступ к компьютеру PC2. На PC4 для этого заведомо прописан статический маршрут в подсеть 192.168.1.0/24 через шлюз 192.168.100.254.
Рис.3. Использование «Incoming Filter». Схема сети.
Решение. По умолчанию все соединения со стороны WAN блокируются. С помощью правил «Incoming Filter можно разрешать проходящий через роутер трафик в LAN со стороны WAN по IP-адресам и портам.
1. Зайдите в раздел «Advanced Setup->Security->IP Filtering», выберите пункт «Incoming» и нажмите на кнопку «Add» для создания нового правила.
2. Создайте правило.
Filter Name: myrule
Protocol: ALL
Source IP address: 192.168.100.88
Source Subnet Mask (or end ip address): оставьте поле пустым
Source Port Type: оставьте поле пустым
Destination IP address: 192.168.1.3
Destination Subnet Mask (or end ip address): оставьте поле пустым
Destination Port: оставьте поле пустым
Ниже следует выбрать WAN-интерфейс, для которого будет выполняться правило. Установленная галочка «Select All» указывает на то, что правило будет выполняться на всех созданных WAN-интерфейсах. Далее нажмите кнопку «Save/Apply».
3. Готово. Теперь остается сохранить настройки и перезагрузить маршрутизатор. «Management > Save/Reboot > Save/Reboot».
Для проверки работоспособности правила отправьте ping с компьютера PC4 на компьютер PC2.
$ ping 192.168.1.3
PING 192.168.1.3 (192.168.1.3) 56(84) bytes of data.
64 bytes from 192.168.1.3: icmp_seq=1 ttl=64 time=0.229 ms
64 bytes from 192.168.1.3: icmp_seq=2 ttl=64 time=0.226 ms
64 bytes from 192.168.1.3: icmp_seq=3 ttl=64 time=0.224 ms
64 bytes from 192.168.1.3: icmp_seq=4 ttl=64 time=0.223 ms
source address
1 source address
Тематики
адрес источника (данных)
—
[Е.С.Алексеев, А.А.Мячев. Англо-русский толковый словарь по системотехнике ЭВМ. Москва 1993]
Тематики
адрес операнда
адрес ячейки памяти
—
[Е.С.Алексеев, А.А.Мячев. Англо-русский толковый словарь по системотехнике ЭВМ. Москва 1993]
Тематики
Синонимы
Тематики
2 source address
3 source address
address bus — шина адреса; адресная шина
4 source address
5 source address
6 source address
7 source address
8 source address
9 source address
10 source address
11 source MAC address
12 адрес источника
13 адрес источника данных
14 адрес источника данных
15 исходный адрес
См. также в других словарях:
source address — The address portion of a packet or datagram that identifies the sender. See also destination address … Dictionary of networking
Source-specific multicast — (SSM) is a method of delivering multicast packets in which the only packets that are delivered to a receiver are those originating from a specific source address requested by the receiver. By so limiting the source, SSM reduces demands on the… … Wikipedia
Source routing — In computer networking, source routing allows a sender of a packet to specify the route the packet takes through the network.With source routing the entire path to the destination is known to the sender and is included when sending data. Source… … Wikipedia
Address resolution protocol — Pour les articles homonymes, voir ARP. Pile de protocoles 7 • Application 6 • … Wikipédia en Français
Address Point — is a mapping/GIS data product supplied by Great Britain s national mapping agency, Ordnance Survey. It is based on the UK’s postal mail organisation, the Royal Mail, list of postal addresses, Postcode Address File (PAF). The most significant… … Wikipedia
Address — may refer to:*A memory address, a unique identifier for a memory location at which a computer can store a piece of data for later retrieval *A network address, the coded representation of the source or destination of a message (e.g. MAC addresses … Wikipedia
Address Resolution Protocol — Pour les articles homonymes, voir ARP. Pile de protocoles 7. Application 6. … Wikipédia en Français
Address Resolution Protocol — In computer networking, the Address Resolution Protocol (ARP) is the method for finding a host s hardware address when only its Network Layer address is known. ARP is defined in RFC 826. [RFC 826 Address Resolution Protocol, a.k.a. STD 37] It is… … Wikipedia
Source port — This article is about software ported by the associated fan community. For software ported by the original developer, see porting. The term source port can also refer to the port from which a packet is sent, e.g. a TCP port. A source port is a… … Wikipedia
Source reduction — According to the EPA, source reduction refers to any change in the design, manufacture, purchase, or use of materials or products (including packaging) to reduce their amount or toxicity before they become municipal solid waste.The Federal Trade… … Wikipedia
address — [14] Address originally meant ‘straighten’. William Caxton, for example, here uses it for ‘stand up straight’: ‘The first day that he was washed and bathed he addressed him[self] right up in the basin’ Golden Legend 1483. This gives a clue to its … The Hutchinson dictionary of word origins
