[YMCS/YDMP Free Trial Program]Yealink would like to offer Free Trial Program of Yealink device management service for our current eligible customers. You can see the details below.
https://www.yealink.com/ydmp-freetrial-2020


Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
DHCP/VLAN abnormalities on T4X compared to T21P
Author Message
AntonP Offline
Junior Member
**

Posts: 7
Joined: May 2014
Reputation: 0
Post: #1
DHCP/VLAN abnormalities on T4X compared to T21P
Hi

I have been doing some extensive testing of T46G, T41P and T21P handsets and have noticed some inconsistencies.

Due to the nature of the network there are multiple DHCP servers, this is destined to change, but shouldnt cause a major issue.

We have 2 Vlans in our network, 1 is data 2 is voice.

Voice is 10.1.x.y (x being site, and y being the unit) and 1 being 172.16.x.y

On the T21p with auto provision we have the following happen.

Boots, gets IP from 172.16, gets auto provision information, applies Vlan
Reboots, gets IP from 10.1, keeps this IP.

However I have noticed for the T4X's this is not the case.
Instead it is

Boots, gets IP from 172.16, gets auto provision information, applies Vlan
Reboots, gets IP from 10.1, holds onto IP till expire, gets 172.16 IP.

This is with the following firmware
28.72.0.25 and 36.72.0.25 , and 34.72.0.20 for the relevant models

I have yet to do packet capture and analysis but from the above I would assume there is something.. abnormal happening.

I will be doing a packet capture to track down the exact issue.

Naturally this threw me a bit as I was using the t21P for the bulk of my testing.
(This post was last modified: 06-26-2014 02:53 PM by AntonP.)
06-26-2014 11:03 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 


Messages In This Thread
DHCP/VLAN abnormalities on T4X compared to T21P - AntonP - 06-26-2014 11:03 AM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
Question 3CX / Yealink passthrough VLAN issue (when phone is rebooted) maindriver 4 11,595 03-24-2022 10:25 PM
Last Post: maindriver
  DHCP not working on T26P when OpenVPN is enabled. LandonL 11 35,940 05-12-2021 10:46 AM
Last Post: 1sae
  Can't register T21P E2 phone LOU 2 14,783 02-09-2019 03:48 PM
Last Post: rccloud
  T38G - PC Port - VLAN Support ezamora 10 32,529 07-11-2018 05:44 PM
Last Post: complex1
  T21P E2 VPN tlathane 4 14,342 05-04-2018 08:36 AM
Last Post: AleksandrS
  T42G dhcp issue Neway 1 8,206 06-15-2017 03:01 AM
Last Post: Karl_Yealink
  T46G Hostname not registering on DHCP fraukas 2 12,568 10-27-2016 12:34 AM
Last Post: anonymous1711612242218
  Sip phone T21P Cannot configure sip server as %NULL% asenthil 2 8,407 09-06-2016 02:14 PM
Last Post: asenthil
  T21P : no audio when connect via openvpn kohan 2 9,569 04-16-2016 12:43 AM
Last Post: kohan
  T46G Not Time Syncing to DHCP or NTP pete333 1 9,129 01-05-2016 05:19 PM
Last Post: Klaus_Yealink

Forum Jump:


User(s) browsing this thread: 1 Guest(s)

Contact Us   Yealink   Return to Top   Return to Content   Lite (Archive) Mode   RSS Syndication