YiHsien  Freshman Member

I found something strange. I use wireshark to monitor the packets. And I found one of our server (192.168.0.22) keeps doing ARP broadcast. (10~20 times per second) Is it normal? 

Our settings are the same as your screen shots. As for the static IP addresses, we have static IP addresses on the phones just simply because it is simple. (We don't have to deal with the DHCP settings on the firewall.)

Hi~ 1. The voice quality is not bad all the time. It could be ok at the beginning of a call but get worse during the call. Normally a call may only last a few minutes, and I cannot see any network activities that could affect the voice quality. 2. Our calls are mostly from outside. The incoming phone lines are 'real'…

Yes, the PCs are in VLAN1. We were just testing if PC can access the internet in VLAN2. We have now successfully put the phone controller and phones in VLAN2 but our voice quality issues still exist. I am wondering if you have any advises? We were told that we can try to separate VLAN1 and VLAN2 in two different physical…

Thank you. We have set the DNS directly on the devices (PC, phone system controller) and we can access the internet successfully now. Thank you.

We have tried your last steps using PING command. And Yes, we can get 8.8.8.8 respond, but failed if we ping a domain name. I feel we should add a DNS to our whole VLAN2 not only the phone system. I know we can set the DNS in the phone system and in the PC individually. Can we set the DNS in firewall and apply to all…

Hi Our DNS still doesn't work on VLAN2. (We can ping a outside IP but we cannot access a outside website via domain name) Here are the screen shots (sorry in Chinese):

Thank you. Yes, our problem is DNS just doesn't work on VLAN2. I just checked and found there is Nothing on the DNS server entries. I have added one and selected our VLAN2 in the drop-down box under "Interface". (Other options are 'lan', 'wan', and 'SSL VPN'). I'll see if it works in the office tomorrow morning.

We are now in step 3. And I have added some policies to allow traffic from VLAN1 to VLAN2, VLAN2 to VLAN1, and VLAN2 to Internet. The results are: 1. We can PING 192.168.2.1 and our other devices in VLAN1. 2 We can also ping the internet via IP address (like 8.8.8.8). 3. We can access the internet via IP address. 4. We can…

We want to move our IP phones to VLAN because our calls are breaking up on IP phones and we think moving to VLAN might solve this problem. I agree that we should put the phone controller and phones on the same VLAN2. And I guess the key part to make VLAN2 works, is due to the VLAN2/subnet setting on our Fortigate firewall,…

Hi Tim, Thanks for the instructions. We are using Fortigate 30E. I think the approach of setting VLAN is the same as VM64 except that only 'lan', or 'wan' can selected in the 'interface' menu. We will select 'lan.' You said 'modify TWO network ports, as follows - VLAN2, PVID2, Untagged VLAN1 Forbidden.' I am a little bit…

Hi Tim, One more thing: You mentioned 'They typically get this information via the DHCP server. However, it is recommended in our NEC SL2100 manual that static IP is preferred. Is it possible that we use static IP (in the same or different subnet)?

Hi one more question:. In your example, how does GS1900 know that 192.168.2.x is with VLAN2？

Hi Tim, Thanks. We have done all the settings except subnet. We have NEC IP phones and our firewall/router is Fortigate. At this moment we manual set their IP addresses (in the same 192.168.0.x subnet with our PC, printers, and servers.). According to your advises that's the root cause why our Voice VLAN isn't up and…

Hi Tim, Thanks for your instructions. It is very clear but I still have some questions. 1.Can we put IP phones in the same subnet with our computers? (We have PC connected behind the IP phones, like the topology showed at the end of this post. I am wondering if PC and IP phones can be in different subnet in the case.)…