Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

QoS over VPN

We have four different sites connected over public network; Therefore, we are running site-to-site VPN tunnel to encrypt the data. Now we are ready to deploy Voice over VPN between four sites (CM Clusters are already deployed in all the locations).

I know the follwoing:

Standard IPSec copies the Type of Service (ToS) byte from the original IP

header of the Voice-over-IP packet to the new IP header added by IPSec. So

the original packet priority is preserved even after encryption.

However, My question is....

Can we do it on our current PIX firewalls?

what is the right code that we need ?

Does it work right w/single DES?

Any help Would be appreciated

Thanks,

-Zulfi

1 REPLY
New Member

Re: QoS over VPN

Currently I do not think pre classification feature is supported on PIX, as far as I know its only supported on Cisco 7100 series VPN routers, Cisco 7200 series routers.

112
Views
0
Helpful
1
Replies
CreatePlease to create content