|
|
|
|
|
|
|
|
 |
 |
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [FW-1] NBT wincopy failures
You could be having an MSS (maximum segment size) issue. While configuring a LAN-to-LAN NetScreen VPN a couple of years back I ran into exactly this problem. Basically, I had to tell at least one of the firewalls to negotiate the MSS size to take into account the additional bytes added to each packet to handle IPSEC. You may find the following URLs of interest, even though I have to leave it to others to explain how this does/doesn't fit in terms of the FW1 product: http://www.cisco.com/warp/public/105/38.shtml http://www.sandelman.ottawa.on.ca/ipsec/1996/07/msg00094.html Particularly from my read of the first document, I have a feeling that these kinds of file copies are *always* and issue, and VPN overhead may well just be the straw that breaks the camel's back. I say this because I've noticed that NBT file copying over the Internet, even unencrypted, has notably slower throughput than every other data transfer I do. -Russ -----Original Message----- From: Jonathan Higgins [mailto:[email protected]] Sent: Tuesday, February 12, 2002 12:11 PM To: [email protected] Subject: [FW-1] NBT wincopy failures Netbios over TCP .. yuck.. but, people at my institution seem to enjoy mounting their directorys at home and copy files and such. Since the install of my firewall(FW-1 on Nokia 650) I have received several complaints about problems with NBT or SMB connections. The complaints are generally specific to "the file never finishes copying".. or "the paper just keeps flipping from one folder to the other" .. and so on.. A thorough check of my log files gives no specific indication of the problem, and SynDefender was reporting some half-closed sessions.. but I turned it off thinking SynDefender may be the culprit... but that didn't fix it either.. After combing through most of the support docs and phoneboy.. I have found nothing.. Anyone have any ideas? Jonathan Higgins Network Service Specialist IV [email protected] ================================================= To set vacation, Out Of Office, or away messages, send an email to [email protected] in the BODY of the email add: set fw-1-mailinglist nomail ================================================= To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================= If you have any questions on how to change your subscription options, email [email protected] ================================================= ================================================= To set vacation, Out Of Office, or away messages, send an email to [email protected] in the BODY of the email add: set fw-1-mailinglist nomail ================================================= To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================= If you have any questions on how to change your subscription options, email [email protected] =================================================
|
||||||||||
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
