[Olsr-users] OLSR topology and VPN links

[ZioPRoTo (Saverio Proto)]

> If you run the etxff_eth metric and tag all VPN links locally as "mode ether"
> you can recognize VPN links because of their ETX cost 0.1.
>
> Only perfect (no packet loss) links tagged by both sides "mode ether" can have
> this cost.

sorry for very late answer.

At Ninux we have the very same issue, with the only difference that we
use tinc-vpn.

To avoid VPN links and use them only when necessary we use
LinkQualityMult. Here the view of the links from our central VPN
server.

svn ~ # wget -q http://127.0.0.1:2006/links -O -
Table: Links
Local IP        Remote IP       Hyst.   LQ      NLQ     Cost
10.0.1.1        10.0.1.50       0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.20       0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.11       0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.53       0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.30       0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.33       0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.77       0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.8        0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.177      0.00    0.195   0.172   29.557
10.0.1.1        10.0.1.120      0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.16       0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.155      0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.51       0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.52       0.00    0.195   0.195   26.010
10.0.1.1        10.0.1.13       0.00    0.195   0.195   26.010

Once all VPN links are ETX above 25, the code of the map server just
does not draw links with a ETX > 25

Saverio