Whether every router in a AS must have its RouterID?

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I know if a AS want to use BGP, the routers in the AS must have its own RouterID.

whether a AS want to use router protocol, the routers must have a RouetrID?

edited 2 days ago

Ron Maupin♦

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asked 2 days ago

three-blocks

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up vote
4
down vote

favorite

Whether every router in a AS must have its RouterID?

I know if a AS want to use BGP, the routers in the AS must have its own RouterID.

whether a AS want to use router protocol, the routers must have a RouetrID?

edited 2 days ago

Ron Maupin♦

60.1k1058109

asked 2 days ago

three-blocks

1946

add a comment |

up vote
4
down vote

favorite

Whether every router in a AS must have its RouterID?

I know if a AS want to use BGP, the routers in the AS must have its own RouterID.

whether a AS want to use router protocol, the routers must have a RouetrID?

edited 2 days ago

Ron Maupin♦

60.1k1058109

asked 2 days ago

three-blocks

1946

Whether every router in a AS must have its RouterID?

I know if a AS want to use BGP, the routers in the AS must have its own RouterID.

whether a AS want to use router protocol, the routers must have a RouetrID?

routing router

edited 2 days ago

Ron Maupin♦

60.1k1058109

asked 2 days ago

three-blocks

1946

edited 2 days ago

Ron Maupin♦

60.1k1058109

asked 2 days ago

three-blocks

1946

edited 2 days ago

Ron Maupin♦

60.1k1058109

edited 2 days ago

Ron Maupin♦

60.1k1058109

edited 2 days ago

Ron Maupin♦

60.1k1058109

asked 2 days ago

three-blocks

1946

asked 2 days ago

three-blocks

1946

asked 2 days ago

three-blocks

1946

add a comment |

1 Answer
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That depends on the routing protocol. For example, every OSPF router will have a router ID, but RIP doesn't use router IDs, it uses the interface address of the directly connected interface.

Routers that do not use a routing protocol (statically configured, or only route between directly connected networks) to exchange routes will not have a router ID.

answered 2 days ago

Ron Maupin♦

60.1k1058109

how about EIGRP and IS-IS?
– three-blocks
yesterday

I was referring to the commonly used open standard routing protocols. IS-IS uses something else (Network Entity Title). EIGRP uses a router ID.
– Ron Maupin♦
yesterday

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

up vote
5
down vote

accepted

That depends on the routing protocol. For example, every OSPF router will have a router ID, but RIP doesn't use router IDs, it uses the interface address of the directly connected interface.

Routers that do not use a routing protocol (statically configured, or only route between directly connected networks) to exchange routes will not have a router ID.

answered 2 days ago

Ron Maupin♦

60.1k1058109

how about EIGRP and IS-IS?
– three-blocks
yesterday

I was referring to the commonly used open standard routing protocols. IS-IS uses something else (Network Entity Title). EIGRP uses a router ID.
– Ron Maupin♦
yesterday

add a comment |

up vote
5
down vote

accepted

That depends on the routing protocol. For example, every OSPF router will have a router ID, but RIP doesn't use router IDs, it uses the interface address of the directly connected interface.

Routers that do not use a routing protocol (statically configured, or only route between directly connected networks) to exchange routes will not have a router ID.

answered 2 days ago

Ron Maupin♦

60.1k1058109

how about EIGRP and IS-IS?
– three-blocks
yesterday

I was referring to the commonly used open standard routing protocols. IS-IS uses something else (Network Entity Title). EIGRP uses a router ID.
– Ron Maupin♦
yesterday

add a comment |

up vote
5
down vote

accepted

That depends on the routing protocol. For example, every OSPF router will have a router ID, but RIP doesn't use router IDs, it uses the interface address of the directly connected interface.

Routers that do not use a routing protocol (statically configured, or only route between directly connected networks) to exchange routes will not have a router ID.

answered 2 days ago

Ron Maupin♦

60.1k1058109

That depends on the routing protocol. For example, every OSPF router will have a router ID, but RIP doesn't use router IDs, it uses the interface address of the directly connected interface.

Routers that do not use a routing protocol (statically configured, or only route between directly connected networks) to exchange routes will not have a router ID.

answered 2 days ago

Ron Maupin♦

60.1k1058109

answered 2 days ago

Ron Maupin♦

60.1k1058109

answered 2 days ago

Ron Maupin♦

60.1k1058109

answered 2 days ago

Ron Maupin♦

60.1k1058109

how about EIGRP and IS-IS?
– three-blocks
yesterday

I was referring to the commonly used open standard routing protocols. IS-IS uses something else (Network Entity Title). EIGRP uses a router ID.
– Ron Maupin♦
yesterday

add a comment |

how about EIGRP and IS-IS?
– three-blocks
yesterday

I was referring to the commonly used open standard routing protocols. IS-IS uses something else (Network Entity Title). EIGRP uses a router ID.
– Ron Maupin♦
yesterday

how about EIGRP and IS-IS?
– three-blocks
yesterday

I was referring to the commonly used open standard routing protocols. IS-IS uses something else (Network Entity Title). EIGRP uses a router ID.
– Ron Maupin♦
yesterday

add a comment |

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