Re: MTU settings.
- From: Sten Daniel Soersdal <netslists@xxxxxxxxx>
- Date: Fri, 30 Mar 2007 09:07:15 -0400
eternityos@xxxxxxx wrote:
Hi everyone :)
Recently, we changed our internet connection to a ppp based (2Mbps).
So naturaly, I thought about changing the MTU of my interfaces on the FreeBSD
NAT router.
So I set it to 576 instead of the default, 1500 on the two interfaces, LAN and
WAN.
In what I have seen, 576 is the natural mtu for a ppp connection.
1500 is the natural mtu for ppp (lesser mtu sizes are the exception).
You also contract a wide range of hard to diagnose problems, if you are
not familiar with diagnosing mtu problems.
Right away after this change, the internet connection blocked. I only got it
back setting the mtu back at 1500.
Why did this block ?
Between the modem and the NAT router, we have a cisco router, I didn't change
it's mtu yet, would it be the cause ?
It has to be negotiated during connection. ppp is a protocol which
preferres the same settings on both ends of the ppp connection. Or
atleast compatible ones.
--
Sten Daniel Soersdal
_______________________________________________
freebsd-isp@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-isp
To unsubscribe, send any mail to "freebsd-isp-unsubscribe@xxxxxxxxxxx"
- References:
- MTU settings.
- From: eternityos
- MTU settings.
- Prev by Date: MTU settings.
- Next by Date: Re: Multiple certificates with only one ip and multiple ports or multiple ip's and same port
- Previous by thread: MTU settings.
- Index(es):
Relevant Pages
|
|
