ZioPRoTo (Saverio Proto)
2010-Dec-14 10:40 UTC
PMTUDiscovery and ClampMSS with mixed tincd versions
> Currently, i have nodes with PMTUDiscovery =yes and ClampMSS = yes.Hello, these features were introduced in 1.0.13 correct ?? I also understand that the two settings are by default "yes" if not explictly set to "no" in the config file. what may happen if I have a network with mixed versions from 1.0.11 and 1.0.13, where the older daemons do not implement that feature ?? it is better to explicitly disable the feature in that case ? (it is not very handy to upgrade all at once because some are embedded device and may require a complete firmware reflash). Saverio
On Tue, Dec 14, 2010 at 11:40:56AM +0100, ZioPRoTo (Saverio Proto) wrote:> > Currently, i have nodes with PMTUDiscovery =yes and ClampMSS = yes. > > these features were introduced in 1.0.13 correct ??No. PMTUDiscovery was introduced in 1.0.3, ClampMSS in 1.0.12. MSS clamping is not doing much in most cases, tinc's ICMP responses to large packets is usually enough, however there are a few cases (mostly involving firewalls that drop ICMP packets) where it helps.> what may happen if I have a network with mixed versions from 1.0.11 > and 1.0.13, where the older daemons do not implement that feature ??That's not a problem. -- Met vriendelijke groet / with kind regards, Guus Sliepen <guus at tinc-vpn.org> -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 198 bytes Desc: Digital signature URL: <http://www.tinc-vpn.org/pipermail/tinc/attachments/20101214/b685de10/attachment.pgp>
On Tue, Dec 14, 2010 at 4:40 AM, ZioPRoTo (Saverio Proto) <zioproto at gmail.com> wrote:> I also understand that the two settings are by default "yes" if not > explictly set to "no" in the config file.A nice feature would be able to have tincd dump all the configuration settings for the running process, its host file, and its ConnectTo host files. An enterprise nice feature would be to issue a command to the network and have every node dump all the above configuration parameters and send them to a central node.
Cédric Lemarchand
2010-Dec-16 19:34 UTC
PMTUDiscovery and ClampMSS with mixed tincd versions
Le 16/12/10 20:08, Rob Townley a ?crit :> A nice feature would be able to have tincd dump all the configuration > settings for the running process, its host file, and its ConnectTo > host files. > An enterprise nice feature would be to issue a command to the network > and have every node dump all the above configuration parameters and > send them to a central node.+1 C?dric