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

Avaya 1608-i over VPN

Avaya 1608-i over VPN

Avaya 1608-i over VPN

Howdy all, I'm trying to extend VOIP phones over a site to site VPN (meraki gear).

Primary network (hosting IPO 500 v2)



Avaya IPO: |

Route in IPO: | |

Remote network (where a few 1608-i deskphones will be)



Phone: * getting subnet conflict when I try to assign a .4 IP with .3 call server on /24, so statically assigning |

I suspect that I need to widen the range of the IPO 500v2, but am not certain. From remote network I can ping back to IPO @ 3.15, but from the 3.15 cannot ping back to the IP of the phone (can to other devices on the network).

Per: PSX_Defector in https://community.spiceworks.com/topic/134445-how-to-setup-avaya-ip-office500-on-a-site-to-site-vpn this should be plug and play once I get the addressing and routes right. Correct? I previously had the IPO subnet opened up to but then I was noticing the phone trying to ARP to find the 3.15 file server and call server. The router/VPN doesn't support proxy arp.

Can anyone clarify if widening the IPO subnet @ the main office is indeed the best next step?

Thanks in advance for helping.

RE: Avaya 1608-i over VPN


You have a routing issue pure and simple.

Your addressing looks ok apart from where you statically use a 16 bit mask.

Take Care

I have always wished that my computer would be as easy to use as my telephone.
My wish has come true. I no longer know how to use my telephone.

RE: Avaya 1608-i over VPN

Indeed, you are causing a clash by using the wrong mask smile

RE: Avaya 1608-i over VPN

You also should not get a subnet conflict as long as the phone gets the default gateway entry.

RE: Avaya 1608-i over VPN

Roger that, thanks for your help guys! I've seen your work in other parts of this forum, and it's all solid advice. I'll look further into the subnet conflict error for resolution.

RE: Avaya 1608-i over VPN with
is your problem, your subnetmask tells the phone that your IPO is on the same network so just broadcasting to it and not going via the default gateway. You have to change it to which is most likely your remote network or you can also use the as that would also go via the default gateway because only the and would be considered local.
Hope I am making sense it is late already.

Joe W.

FHandw, ACSS (SME)

"This is the end of the world, make sure to buy your T-shirt before it is too late"
Original expression of my daughter

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