showing esp tunnels in routing table
Eric W. Bates
ericx_lists at vineyard.net
Wed Sep 6 07:58:21 PDT 2006
Phil Regnauld wrote:
> Eric W. Bates (ericx_lists) writes:
>> When you establish an esp tunnel, the subnets on the remote end of the
>> tunnel do not seem to appear in either "netstat -nr" or 'route get
>> xxx.xxx.xxx.xxx'
>>
>> Is there a way to display those routes other than using setkey to dump
>> the SPD's?
>
> No, because there are no routes. The IPSec layer "hijacks" the packets
> and they are encapsulated before the routing table gets a chance
> to see them.
>
> You would have to setup transport ESP + gif/gre tunnels to see routing
> entries.
Apparently, openbsd's implementation of netstat allows one to view ESP
'flows' (I believe that is how they refer to them) by examining the
family 'encap'
netstat -rnf encap
We have no such equivalent?
> Phil
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