[collectd] collectd running over ipsec vpn

Thomas Stegbauer thomas at stegbauer.info
Mon Aug 6 01:38:28 CEST 2007

Florian Forster schrieb:
> Hi Thomas,
hi florian,
> I took the liberty to forward your mail to do mailinglist. Possibly
> someone there has an idea ;)
ok, i answered already to that, i don't know it is allowed to nonmebers? (ok i read now to the end:)

> On Sun, Aug 05, 2007 at 03:07:51PM +0200, Thomas Stegbauer wrote:
>> i am running collectd on some debian etch machine's (and already on
>> sarge before) it worked fine.  now i moved over several server to a
>> new location and created an ipsec vpn over there.
> Do you use unicast over that line or multicast? What is the MTU of that
> connection?
unicast, in the client-config i have the server + ip of that.

>> i modified the clients and dns.
> What do you mean by that?
modified the network-settings (one got upgraded from sarge to etch, a second one got reinstalled
from debian 4.0 i386 to debian 4.0 amd64

>> but the collectd graphs are pretty poor, with very big gaps between,
>> as i would loose data.
> That sounds as if it works occasionally.. Weird..

i can ping and transfer data over the link.

> collectd uses UDP.. Did you try FTP using UDP or FTP? AfaIk FTP can use
> either..

i used tcp, maybe it is a mtu problem. i will check that with tcpdump

>> any ideas?
> Not really, sorry :/ Try adding some debug messages (the entire message
> received, the length of the message, the number of fields/chunks that
> are found, ...) and tell us what you find out..

i not so good in programming in c, i check now first with tcpdump, if it isn't a mtu problem.

# Thomas Stegbauer
# https://keyserver1.pgp.com/vkd/DownloadKey.event?keyid=0x9A3F1866FC68E91D
# Key fingerprint = 5A2D FEDC 8A50 F1BB 25FB  967B 9A3F 1866 FC68 E91D

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