[c-nsp] IPSEC Transport mode

[Jeremy Stretch]

Ziv,

I have a setup very similar to what you describe, a transport mode 
tunnel between two 3725s connected via satellite. We have accelerators 
in place but I'm not familiar with them. It's a fairly standard setup; 
what do you need to know?

stretch
http://packetlife.net

Ziv Leyes wrote:
> Hi,
> I'm making a VPN Site to Site tunnel in a lab test between a Cisco 1840 router and ASA5510, each one connected behind a satellite link, because of the high latency in such setup (1300ms RTT) we're trying to implement acceleration and the appliance we're trying to implement needs the VPN to encrypt in transport mode in order to be able to accelerate the traffic, the appliance knows to "ignore" the ESP protocol and accelerate/compress the data, it can't do nothing on an IPSec in tunnel mode.
> I searched the web and the only thing I've found was a proposed setup with GRE or L2TP tunnel and then encrypting the data that goes through the tunnel.
> Does somebody know what I'm talking about? I'll appreciate some ideas.
> Thanks,
>
> Ziv
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