[FROG] Link Scope IPs

Chris Malton (Delta V) chris at deltav-tech.co.uk
Fri Mar 29 16:38:28 EDT 2019


Thanks Donald,

Was trying to get all my config into FRR ahead of a datacenter move - 
looks like we'll have to carry on with /e/n/i for now.

Regards,

Chris

On 29/03/2019 20:32, Donald Sharp wrote:
> Chris -
>
> FRR currently sets RT_SCOPE_UNIVERSE to the routes it installs.  It
> would not be too hard to add the ability to change this, someone would
> just need to write it up.
>
> donald
>
> On Fri, Mar 29, 2019 at 4:22 PM Chris Malton (Delta V)
> <chris at deltav-tech.co.uk> wrote:
>> Hi all,
>>
>> I'm sure this must have been asked before, but is it possible to set
>> "scope link" on an IP address in FRR?  I use private link addresses
>> heavily because of the exhaustion of v4, and therefore everything is
>> using RFC1918 internally.
>>
>> While I'm deploying v6 and we don't have issues there, I don't want
>> RFC1918 addresses to show up (or, indeed, fail to show up) for v4
>> traceroutes.  All of my routers have loopback addresses, and I'd like
>> Linux to use them in preference to the RFC1918s on the interface.  The
>> normal way of me doing this is to set "scope link" on all of them.
>>
>> Alas, such an option doesn't seem to exist in FRR.
>>
>> Am I missing something?
>>
>> Regards,
>>
>> Chris Malton
>>
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>> Delta V Technologies Limited
>> 03333 402 406    www.deltav-tech.co.uk
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03333 402 406    www.deltav-tech.co.uk
Office: 17 Elm Close, Southampton, SO16 7DT
Company No. 11006104 Registered in England and Wales




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