What does “link#1” mean?

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netstat -rn

Routing tables

Internet:

Destination        Gateway            Flags    Refs      Use    Mtu  Interface

default            75.126.68.49       UGS         7     1203      -   pcn0

1.2.3.3/29    link#1             UC          1        0      -   pcn0

...

My question: What does "link#1" mean? The OS is OpenBSD.

asked Jan 23 '14 at 19:27

newuser999

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up vote
3
down vote

favorite

netstat -rn

Routing tables

Internet:

Destination        Gateway            Flags    Refs      Use    Mtu  Interface

default            75.126.68.49       UGS         7     1203      -   pcn0

1.2.3.3/29    link#1             UC          1        0      -   pcn0

...

My question: What does "link#1" mean? The OS is OpenBSD.

asked Jan 23 '14 at 19:27

newuser999

2481312

add a comment |

up vote
3
down vote

favorite

netstat -rn

Routing tables

Internet:

Destination        Gateway            Flags    Refs      Use    Mtu  Interface

default            75.126.68.49       UGS         7     1203      -   pcn0

1.2.3.3/29    link#1             UC          1        0      -   pcn0

...

My question: What does "link#1" mean? The OS is OpenBSD.

asked Jan 23 '14 at 19:27

newuser999

2481312

netstat -rn

Routing tables

Internet:

Destination        Gateway            Flags    Refs      Use    Mtu  Interface

default            75.126.68.49       UGS         7     1203      -   pcn0

1.2.3.3/29    link#1             UC          1        0      -   pcn0

...

My question: What does "link#1" mean? The OS is OpenBSD.

openbsd

asked Jan 23 '14 at 19:27

newuser999

2481312

asked Jan 23 '14 at 19:27

newuser999

2481312

asked Jan 23 '14 at 19:27

newuser999

2481312

asked Jan 23 '14 at 19:27

newuser999

2481312

asked Jan 23 '14 at 19:27

newuser999

2481312

add a comment |

2 Answers
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https://www.freebsd.org/doc/handbook/network-routing.html

The designation link#1 refers to the first Ethernet card in the
machine.

But there is still the question: what does the "first Ethernet card" mean? How to determine which one is it when we have multiple ethernet cards with different chipsets? :)

answered Jan 10 '15 at 10:57

whoisthesomeone

10626

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There is some good info over at this question, for OSX (which is basically FreeBSD): https://superuser.com/questions/1067732/whats-the-meaning-of-link4-in-macs-route-table

The essence of it is that link#N entries indicate no real routing is done. Those addresses are on the local network segment, and don't need to be routed — they are just connected by ethernet.

There is still a somewhat open question regarding the ordering of link#1, link#2, ...
I don't have a certain answer, but they seem to refer to your interfaces in the same order that ifconfig outputs them.

How exactly this ordering is determined I'm less sure, though.

edited Nov 26 at 5:36

answered Nov 25 at 22:44

jwd

61847

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2 Answers
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2 Answers
2

active

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https://www.freebsd.org/doc/handbook/network-routing.html

The designation link#1 refers to the first Ethernet card in the
machine.

But there is still the question: what does the "first Ethernet card" mean? How to determine which one is it when we have multiple ethernet cards with different chipsets? :)

answered Jan 10 '15 at 10:57

whoisthesomeone

10626

add a comment |

up vote
0
down vote

https://www.freebsd.org/doc/handbook/network-routing.html

The designation link#1 refers to the first Ethernet card in the
machine.

But there is still the question: what does the "first Ethernet card" mean? How to determine which one is it when we have multiple ethernet cards with different chipsets? :)

answered Jan 10 '15 at 10:57

whoisthesomeone

10626

add a comment |

up vote
0
down vote

https://www.freebsd.org/doc/handbook/network-routing.html

The designation link#1 refers to the first Ethernet card in the
machine.

But there is still the question: what does the "first Ethernet card" mean? How to determine which one is it when we have multiple ethernet cards with different chipsets? :)

answered Jan 10 '15 at 10:57

whoisthesomeone

10626

https://www.freebsd.org/doc/handbook/network-routing.html

The designation link#1 refers to the first Ethernet card in the
machine.

But there is still the question: what does the "first Ethernet card" mean? How to determine which one is it when we have multiple ethernet cards with different chipsets? :)

answered Jan 10 '15 at 10:57

whoisthesomeone

10626

answered Jan 10 '15 at 10:57

whoisthesomeone

10626

answered Jan 10 '15 at 10:57

whoisthesomeone

10626

answered Jan 10 '15 at 10:57

whoisthesomeone

10626

add a comment |

up vote
0
down vote

There is some good info over at this question, for OSX (which is basically FreeBSD): https://superuser.com/questions/1067732/whats-the-meaning-of-link4-in-macs-route-table

The essence of it is that link#N entries indicate no real routing is done. Those addresses are on the local network segment, and don't need to be routed — they are just connected by ethernet.

How exactly this ordering is determined I'm less sure, though.

edited Nov 26 at 5:36

answered Nov 25 at 22:44

jwd

61847

add a comment |

up vote
0
down vote

There is some good info over at this question, for OSX (which is basically FreeBSD): https://superuser.com/questions/1067732/whats-the-meaning-of-link4-in-macs-route-table

The essence of it is that link#N entries indicate no real routing is done. Those addresses are on the local network segment, and don't need to be routed — they are just connected by ethernet.

How exactly this ordering is determined I'm less sure, though.

edited Nov 26 at 5:36

answered Nov 25 at 22:44

jwd

61847

add a comment |

up vote
0
down vote

There is some good info over at this question, for OSX (which is basically FreeBSD): https://superuser.com/questions/1067732/whats-the-meaning-of-link4-in-macs-route-table

The essence of it is that link#N entries indicate no real routing is done. Those addresses are on the local network segment, and don't need to be routed — they are just connected by ethernet.

How exactly this ordering is determined I'm less sure, though.

edited Nov 26 at 5:36

answered Nov 25 at 22:44

jwd

61847

There is some good info over at this question, for OSX (which is basically FreeBSD): https://superuser.com/questions/1067732/whats-the-meaning-of-link4-in-macs-route-table

The essence of it is that link#N entries indicate no real routing is done. Those addresses are on the local network segment, and don't need to be routed — they are just connected by ethernet.

How exactly this ordering is determined I'm less sure, though.

edited Nov 26 at 5:36

answered Nov 25 at 22:44

jwd

61847

edited Nov 26 at 5:36

answered Nov 25 at 22:44

jwd

61847

answered Nov 25 at 22:44

jwd

61847

answered Nov 25 at 22:44

jwd

61847

add a comment |

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