We have a Cisco 3825 router that has two GigabitEthernet ports. The router is in a different network than our company network, so they're not able to reach eachother.
I was thinking of creating a new subinterface under GigabitEthernet 0/1 and put it in the same network as our company network, so it can reach it. Is this a safe way of doing this? because our Voice VLAN is also configured under GigabitEthernet 0/1.
The reason we want to do is, to send notifications to our mailserver when someone receives a voicemail.
Below the configuration of our subinterface which is used for Voice traffic.
encapsulation dot1Q 200
ip address 10.x.x.x x.x.x.x
no cdp enable
Thanks in advance,