Site-to-Site vs. EZvpn Server to Remote

[shaferbus]

Just want to make sure I'm not shooting myself in the foot here...

We have a Cisco 871 router at our main office, on which I had set up EZVPN Server so mobile clients could access the domain while on the road. Works fine with the Cisco client installed on the laptops.
Now I'm trying to set up an always-on VPN connection to a home-office, with a Cisco 851 on the other end. I figured since I already have EZVPN Server set up on the office end, I'd just configure the 851 as an EZVPN Remote.

Before I go troubleshooting the problems I'm having, is there any compelling reason to set it up as a "Site-to-Site" connection vs the EZVPN solution?
Right now, I've got a tunnel and ping but apparently no domain authentication is getting passed to the office domain controller. Should I troubleshoot that (with the help of a Tek-tips post, no doubt ), or just scrap it for a "Site-to-Site" config?

 

[brianinms]

Well a site to site, would mean either end could bring up the tunnel. As far as the EZVPN goes are you using client mode or network extension mode?

 

[shaferbus]

Thanks brianinms - I wasn't really clear what the difference was. There's no need to bring up the tunnel from the main office, so I'll continue troubleshooting the easyvpn.

I'm using Client Mode, not Network Extension. There is no forseeable reason for the main office network to access the home office network (it's at the VP's house), so I didn't select that option. Did I misunderstand what Network Extension mode is for?

 

[shaferbus]

I'll start another thread for the domain authentication problem, and post my setup. Hopefully someone will see what I'm missing.