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What do a network route and a host route look like in a routing table?

How does Linux handle 2 identical destinations in its routing table?Egress packets do not use non-default routing tableAssymetric routing problems in LINUXLinux Source Routing, Strong End System Model / Strong Host Model?how to setup network routing table for wireless networkRoute not matching correctly - network unreachableWhy is the main table involved, since I configured the routing to use a custom routing table?Route a specific host to different gatewayNetwork interface routing when using VPNLinux IPv6: Specifying policy routing table for default gateway learned from a router advertisement?

1

In the routing table output by route, What do a network route and a host route look like? From https://www.cyberciti.biz/faq/what-is-a-routing-table/

Network Route: A route (path) to a specific Network ID in the
internetwork.

Host Route : A route to a specific internetwork address (Network ID
and Host ID). Host routes allow intelligent routing decisions to be
made for each network address. Host routes are used to create custom
routes to control or optimize specific types of network traffic.

Are a network route and a host route related to flag:

• H (target is a host)




• G (use gateway)?

Are a network route and a host route related to whether the next hop is a gateway or a local network interface?

Thanks.

routing route

share|improve this question

asked yesterday

TimTim

28.2k78269490

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This is under the context of understanding the usage of route command. If this question is posted on networkingengineering.se, it will be closed as OS specific. They want nothing about OS, user programs, or application level.
  
  – Tim
  19 hours ago
  
  

  
  
  
  

add a comment | 

1

In the routing table output by route, What do a network route and a host route look like? From https://www.cyberciti.biz/faq/what-is-a-routing-table/

Network Route: A route (path) to a specific Network ID in the
internetwork.

Host Route : A route to a specific internetwork address (Network ID
and Host ID). Host routes allow intelligent routing decisions to be
made for each network address. Host routes are used to create custom
routes to control or optimize specific types of network traffic.

Are a network route and a host route related to flag:

• H (target is a host)




• G (use gateway)?

Are a network route and a host route related to whether the next hop is a gateway or a local network interface?

Thanks.

routing route

share|improve this question

asked yesterday

TimTim

28.2k78269490

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This is under the context of understanding the usage of route command. If this question is posted on networkingengineering.se, it will be closed as OS specific. They want nothing about OS, user programs, or application level.
  
  – Tim
  19 hours ago
  
  

  
  
  
  

add a comment | 

In the routing table output by route, What do a network route and a host route look like? From https://www.cyberciti.biz/faq/what-is-a-routing-table/

Network Route: A route (path) to a specific Network ID in the
internetwork.

Host Route : A route to a specific internetwork address (Network ID
and Host ID). Host routes allow intelligent routing decisions to be
made for each network address. Host routes are used to create custom
routes to control or optimize specific types of network traffic.

Are a network route and a host route related to flag:

• H (target is a host)




• G (use gateway)?

Are a network route and a host route related to whether the next hop is a gateway or a local network interface?

Thanks.

routing route

share|improve this question

asked yesterday

TimTim

28.2k78269490

share|improve this question

asked yesterday

TimTim

28.2k78269490

share|improve this question

asked yesterday

TimTim

28.2k78269490

asked yesterday

TimTim

28.2k78269490

asked yesterday

TimTim

28.2k78269490

1 Answer
1

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oldest

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1

A "host route" is route to a single host, a "network route" is route to a network of more than one host. The only difference is really the netmask of the target.
192.168.1.0/32 is only one address, so a route to it is a host route; but 192.168.1.0/24 is a block of 256 addresses, and a route to it is a network route.

That's completely orthogonal to if the next hop is a local network interface, or one reached by a gateway.

(Though any locally connected network would probably have more than one address, so you might as well have a route for the whole network. Point-to-point links might be an exception, of course.)

share|improve this answer

answered yesterday

ilkkachuilkkachu

62.8k10103180

add a comment | 

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1

A "host route" is route to a single host, a "network route" is route to a network of more than one host. The only difference is really the netmask of the target.
192.168.1.0/32 is only one address, so a route to it is a host route; but 192.168.1.0/24 is a block of 256 addresses, and a route to it is a network route.

That's completely orthogonal to if the next hop is a local network interface, or one reached by a gateway.

(Though any locally connected network would probably have more than one address, so you might as well have a route for the whole network. Point-to-point links might be an exception, of course.)

share|improve this answer

answered yesterday

ilkkachuilkkachu

62.8k10103180

add a comment | 

1

A "host route" is route to a single host, a "network route" is route to a network of more than one host. The only difference is really the netmask of the target.
192.168.1.0/32 is only one address, so a route to it is a host route; but 192.168.1.0/24 is a block of 256 addresses, and a route to it is a network route.

That's completely orthogonal to if the next hop is a local network interface, or one reached by a gateway.

(Though any locally connected network would probably have more than one address, so you might as well have a route for the whole network. Point-to-point links might be an exception, of course.)

share|improve this answer

answered yesterday

ilkkachuilkkachu

62.8k10103180

add a comment | 

A "host route" is route to a single host, a "network route" is route to a network of more than one host. The only difference is really the netmask of the target.
192.168.1.0/32 is only one address, so a route to it is a host route; but 192.168.1.0/24 is a block of 256 addresses, and a route to it is a network route.

That's completely orthogonal to if the next hop is a local network interface, or one reached by a gateway.

(Though any locally connected network would probably have more than one address, so you might as well have a route for the whole network. Point-to-point links might be an exception, of course.)

share|improve this answer

answered yesterday

ilkkachuilkkachu

62.8k10103180

share|improve this answer

answered yesterday

ilkkachuilkkachu

62.8k10103180

answered yesterday

ilkkachuilkkachu

62.8k10103180

answered yesterday

ilkkachuilkkachu

62.8k10103180