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Contributor
Posts: 115
Registered: ‎05-21-2016
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How to confirm route 10.0.08/32 go through fxp0 in MX960?

Hi a router is located at network. It has the below configuration. My question is how to confirm route 10.0.08/32 go through fxp0?

Thank you

 

set interfaces fxp0 unit 0 family inet address 10.0.1.15/26 master-only

set interfaces lo0 unit 10 family inet address 10.0.0.8/32

Trusted Expert
Posts: 493
Registered: ‎08-23-2015
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Re: How to confirm route 10.0.08/32 go through fxp0 in MX960?

Hello,

 

If the IP is configured on lo0, you would see that route as connected?

Why do not want it to see that route through fxp0?

 

Regards,

 

Rushi

Contributor
Posts: 115
Registered: ‎05-21-2016
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Re: How to confirm route 10.0.08/32 go through fxp0 in MX960?

Thanks for your reply. 

 

here are answers to your questions:

 

If the IP is configured on lo0, you would see that route as connected? Yes, i see it. but i need to know which physical interface the traffic goes through. 

 

Why do not want it to see that route through fxp0? we need to shutdown all interfaces except the management interfaces. lo0 is management virtual interface. if fxp0 also is interface that management traffic goes through, we just keep fxp0 active during process. 

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Trusted Expert
Posts: 493
Registered: ‎08-23-2015
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Re: How to confirm route 10.0.08/32 go through fxp0 in MX960?

Hello,

 

FXP0 is used for out of band management purposes. Now mixing out of band management traffic with production is not a good idea.

 

Besides it depends upon the source from which you are trying to access lo0 that will decide what route needs to be configured so that it is reachable over fxp0, if at all that is possible.

 

Regards,

 

Rushi

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Posts: 4,698
Registered: ‎03-30-2009
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Re: How to confirm route 10.0.08/32 go through fxp0 in MX960?

fxp0 is not able to pass any traffic to any other interface on the router including loopback.  This only allows destinations to itself it is a no transit interface.

 

this is confusing because the outbound traffic for this interface does use the root routing instance table inet.0 for route selection.

 

Starting in Junos 17.1 you can move the fxp0 to a special routing instance to isolate the routing table for this.

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