I have a TP-Link access point and an Avaya ip phone that sometimes are no longer reachable.
They are inside the same vlan as my pc
Ip arp tabe says:
IP_ADDRESS MAC ADDRESS
192.168.1.100 00:00:00:00:00:00
192.168.1.220 00:00:00:00:00:00
No results if I reboot devices or reboot routerboard
If I remove them from CRS125 switch and reconnect them to another switch (trunk connected with CRS) they become immediately reachable.
Any idea ???
Do these devices obtain their address via DHCP? Is that working OK?
No, they have static ip address
It seems strange this is an issue happening only to me…
Perhaps any macroscopic error somewhere in configuration ??
Too strange nobody has experienced something like this..
yesterday it was happened with ip-pbx machine (static ip adress) :
machine unreachable from any pc on LAN : I removed my PC and Ip-PBX from CRS125 and connected together, they “ping” like a charm, reconnected to CRS nothing… pbx ip address = MAC 00:00:00:00:00:00 , just disconnect pbx from CRS , attached a stupid 5 port switch to CRS and PBX to this switch: ping OK !!!
No matter how many times devices were rebooted.
Anyone explaining what’s going on and why ???
Please note it happens also in CRS with no Vlan configuration.
You will need to check your wiring and when it down you can also check the status of the ethernet port.
Hardware layer is OK and port enabled
It is absurd… I remove device from ethernet port , connect a mini-switch to the same CRS port and device to mini-switch , all up and running.
I reconnect device again on same CRS port STOP ! arp= 00:00:00:00:00:00
I think you need to check the status of the ethernet port when it fails.