Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

VPNs and DHCP through the Internet

VPNs and DHCP through the Internet

VPNs and DHCP through the Internet

Does the head end BCM require a public IP addresses for each VPN tunnel (from a remote site)? Can/(how does) an IP phone at a remote site get a DHCP address from the head end using double nat'ing, VPN & DSL Internet?  

RE: VPNs and DHCP through the Internet

Only one Public IP is required for any number of tunnels.

Typically, you would not point your DHCP clients to the main site.  If it were a VERY small remote office, you could do that with something like an IP HELPER ADDRESS over a PRIVATE WAN.  You would normally use a DHCP server at the branch, or statically configure the phones.


RE: VPNs and DHCP through the Internet

Hey thanks for the rapid reply. I can use the contivity router at the remote site for the DHCP, but do the phones need to be on the same LAN IP address scheme as the head end, even with the nat'ing?

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close