Re: [LARTC] tables and default

[Sandro Dentella <sandro@e-den.it>]

> First thing--I don't know why you are seeing this error from 'ip
> route get'.  This should return the real route chosen.  You could
> always try the ping and then check the route cache.  This should
> help you identify the actual route chosen.
> 
> Here's what's happening.
> 
>   - kernel gets packet and needs to select a route
>   - according to rule 0, we look up in table local
>   - perform route lookup in table local--no match!
>   - according to rule 50, we look up in table bluff
>   - perform route lookup in table local--no match!
>   - according to rule 32767, we look up in table main
>   - perform route lookup in table main-- MATCH!
>   - route packet out default gateway
> 
> If you add a route to table bluff as follows, you should effectively
> prevent 192.168.5.0/24 from reaching any network other than
> 192.168.5.0/24.
> 
>   ip route add blackhole default table bluff

thanks a lot for the explanation. This definitely solved my doubts. The only
remainig problem is the 'ip route get' error. I'm sure that in some moments
yesterday I culd get an answer, now it always give errors, independent from
the rule set...

sandro
*:-)


-- 
Sandro Dentella  *:-)
e-mail: sandro@e-den.it 
http://www.tksql.org                    TkSQL Home page - My GPL work
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