We see none is answering.
We already asked also for V2 informations, and none answered the same.
Is there any other list where to put advanced questions?
Tonino
Il 07/03/2011 13:57, Tonix (Antonio Nati) ha scritto:
We are facing a problem related to MTU, and we do not understand how
to solve it.
We have a configuration with pfsense facing Internet WAN, a LAN, and a
DMZ interface where there is another network protected by a monowall fw.
If we make a "ping -s 1500 www.google.com" from the pfsense LAN, we
have 0% success.
If we make the same command from the WEB console, we have 100% success.
If we make the same command from PPTP (landing inside pfsense LAN), we
have 100% success.
If we try to "ping -s 1500 www.google.com" from monowall networks
(passing trought pfsense), we have 0% success.
If we make the same command (from pfsense) to the monowall WAN, or any
internal host on monowall, we have 100% success.
If we "ping -s 1500" the pfsense wan, we have 100% success.
It looks like large packets traversing pfsense, and coming from
ethernet interfaces are not fragmented, while large packets coming
from within pfsense (or from PPTP interface) are fragmented.
Unique option we see related to fragmentation (advanced setup) is
"clear DF bit" on advanced page. We tried it, without any different
result.
We are using Intel or HP gigabit server adapters, default MTU on all
interfaces, so we don't see problems on adapters.
PFsense version 1.2.3-release.
Any suggestion?
Tonino
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