[Olsr-dev] Committed Patches

[Hannes Gredler]

On Sun, Sep 23, 2007 at 05:59:08PM +0200, Juliusz Chroboczek wrote:
| > 3.  the local router automatically builds up an
| >     unnumbered GRE tunnel to all the gws in its list if
| 
| Why GRE?  Plain IPIP is simpler and has less overhead.
| 

for three reasons:

1. GRE is more generic (can carry V6 and many other protocols)

2. any auto-tunneling protocols in the IETF (see l3vpn WG
   for a few examples) for reasons meantion in [1]
   are based on GRE

3. overhead does not matter -
   what matters is simplicity and code-reusability.

   i want to reuse the same infrastructure for both
   default-gw stickyness and V6 tunneling.

/hannes