borneo.antonio at gmail
Oct 31, 2009, 9:22 AM
Post #1 of 1
commit 448 adds Nortel's proprietary UDP NATT to vpnc.
The advantages of NATT:
- should finally make vpnc-nortel working on MAC (that does not
support ESP in same way of Linux)
- makes vpnc-nortel working when connected through providers that drop
- allows more vpnc-nortel behind a single NAT ADSL to connect to same server
- I have noticed network speed is higher with ESP than with UDP. Maybe
this is specific of route between home (China) and server (USA).
To enable UDP NATT, you have to use either command line flag
"--natt-mode nortel-udp", or following text
NAT Traversal Mode nortel-udp
in the config file.
Your Nortel server could be configured to ignore UDP, and only use ESP (or AH).
In such case, you are not required to change config file or command
line. vpnc-nortel will simply ignore your UDP NATT request, dropping
to normal working mode.
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