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adelossantos_16's avatar
adelossantos_16
Icon for Nimbostratus rankNimbostratus
Dec 02, 2011

route to a vlan ???

Can some one explain this to me ?

 

 

Checking a customer configuration i found this on the bigip.conf file.

 

 

route 192.168.10.100 {

 

vlan grp1

 

}

 

 

Where "grp1" consist of a vlan tag with 3 interfaces 1.2,1.3,1.4

 

 

It makes me wonder:

 

 

- when the big-ip goes to 192.168.10.100 the packet will be sent to what interface ?

 

- and to what destination ? i mean, there is no "next hop"

 

 

Thanks guys.

 

config
design

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  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Dec 03, 2011
    With a VLAN as the destination of a route, LTM will do an ARP broadcast for 192.168.10.100 on the VLAN. The selection of which interface depends on the trunk protocol. Regardless of which interface is selected, the LTM behavior is the same though.

     

     

    This isn't a very typical use for a route. Generally, you'd specify a gateway router address or a gateway pool of router addresses.

     

     

    Aaron
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Dec 04, 2011
    additionally, i have come across this known issue.

     

     

    sol11659: The BIG-IP system sends ARP requests containing a loopback address when a VLAN route is defined on the system

     

    http://support.f5.com/kb/en-us/solutions/public/11000/600/sol11659.html