Dump (former) route cache (i.e. PMTU info)

I see that linux-net list is no more, therefore I’m posting here.

I’m aware that the route cache has been removed as of 2012 
(http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=89aef8921bfbac22f00e04f8450f6e447db13e42)

Before that - I was able to do ‘ip route show table cache’ and see all 
cached PMTU info.

The closest thing I can find now is to pull info on a single entry with 
‘ip route get x.x.x.x’

Is there a way currently to get the old behavior and display all entries 
at once ?

Thanks.

--
Brandon Applegate - CCIE 10273
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