Re: Multiple Fibs and INET6

Hi everyone,
Did anyone had the chance to take a look?
For me it’s a bug but before filling the PR want to know what’s your view or if it’s a limitation or bug by design.
Br
Santi


> On 12 Jul 2024, at 19:06, Santiago Martinez <sm@codenetworks.net> wrote:
> 
> 
> Hi Everyone.
> 
> While adding -F ( fib as used in netstat ) to ping and ping6 I have found something that from my understanding is not correct.
> Please can you advise?
> I have the following setup :
> 
> -- two fibs (0 and 1) 
> -- two  loop-backs (lo0 and lo1).
> -- Lo1 has been assigned to fib1
> -- net.add_addr_allfibs = 0
> My interface output looks like this:
> 
> ifconfig lo0 | grep inet6
>        inet6 ::1 prefixlen 128
>        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
> 
> ifconfig lo1 | grep inet6
>        inet6 fe80::1%lo1 prefixlen 64 scopeid 0x3
> 
> 
> If I do a netstat -rn -6  -F0 I get the following which is was i expected.
> 
> Internet6:
> Destination                       Gateway                       Flags     Netif Expire
> ::/96                             link#2                        URS         lo0
> ::1                               link#2                        UHS         lo0
> ::ffff:0.0.0.0/96                 link#2                        URS         lo0
> fe80::%lo0/10                     link#2                        URS         lo0
> fe80::%lo0/64                     link#2                        U           lo0
> fe80::1%lo0                       link#2                        UHS         lo0
> ff02::/16                         link#2                        URS         lo0
> 
> 
> Now,  netstat -rn -6  -F1 shows  "fe80::1%lo0" which should not be there and "fe80::1%lo1" is missing which should be there.
> Internet6:
> Destination                       Gateway                       Flags     Netif Expire
> fe80::%lo1/64                     link#3                        U           lo1
> fe80::1%lo0                       link#2                        UHS         lo0
> 
> 
> What output I was expecting was:
> Internet6:
> Destination                       Gateway                       Flags     Netif Expire
> fe80::%lo1/64                     link#3                        U           lo1
> fe80::1%lo1                       link#3                        UHS         lo1
> 
> 
> 
> This makes the ping -6 -F0 fe80::1%lo0  to work but ping -6 -F1 fe80::1%l01 to fail which I wanted to use as test case.
> 
> Thanks in advance.
> 
> Santiago
>