05-04-2007 09:04 AM - edited 02-21-2020 03:01 PM
Hi,
I have a site-to-site VPN b/ my HQ and my remote branch and I am facing slowness in VPN big time when synching emails through MS Outlook, however when connecting through remote VPN the users are not facing this slowness and are synching emails just fine.
I know IPSec adds overhead over IP traffic which is about 56 bytes, please correct if I am wrong. Now does Site-to-site VPN add more overhead than what the remote VPN adds causing this slowness? Or could that be due to wrong site-to-site VPN between the PIX and the remote branch's VPN device? By the way, for remote users VPN I am currently using Microsoft VPN.
Appreciate your response on this.
Thanks,
Haitham
05-04-2007 11:59 AM
Hi Haitham
Thanks for your question. Unfortunately, Your question is not related to the topic being covered, which is Physical Securtiy & Video Surveillance. Sorry for the confusion we may have created between Physical and Data security.
The nature of your question requires some indepth remote VPN expertise. My suggestion is to drop an email to Cisco Support: tac@cisco.com
Best regards,
Hugo
05-04-2007 12:06 PM
Hugo, I think you posted in the wrong thread.
05-04-2007 12:54 PM
Thanks all, I posted my question under the VPN thread as there is a one specialized mainly in VPN.
Regards,
Haitham
05-07-2007 04:25 AM
Hi Haitham,
as a problem isolation session, you may exclude the smtp from the interesting traffic in your access-list, at both end. See if you expereince the same level of slowness. This would isolate the possibility of congestion at your WAN, as well as, a QoS policy might have been applied to limit the bandwidth allocated for email/smtp.
Thanks
Sami
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