UC320W WAN port unreachable

[obencandemir]

Hi all,

I am a new Cisco enthusiast and presently an end user. I have embarked on a learning adventure with networking and jumped in with both feet.

I have the following hardware:

Cisco 887VA Integrated Services Router

Cisco ES520 series 8 port switch

Cisco UC320W appliance (of course)

I had the router as part of my existing data network and so I followed the Greyfield Smart Design guidelines for voice only service.

I have selected this topology and have my connections as per the guidelines.

Summary:

Cisco 887VA (fast ethernet port 3) ---- VLAN 4 ----- (WAN port) UC320W

I have configured the 887 with the IP address 192.168.2.253 with mask 255.255.255.252 on vlan4.

On the WAN page of the UC320W I have configured it with IP address 192.168.2.254 and mask 255.255.255.252. I have set the gateway as 192.168.2.253. My DNS servers etc are from the ISP.

My router config for the setup is:

!

interface FastEthernet3

switchport access vlan 4

switchport mode trunk

no ip address

!

interface Vlan4

ip address 192.168.2.253 255.255.255.252

ip nat inside

ip virtual-reassembly in

!

ip nat inside source static tcp 192.168.2.254 8080 interface Dialer0 8080

Now when I try to ping the UC320W from the router I get no response:

cisco#ping 192.168.2.254

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.2.254, timeout is 2 seconds:

.....

Success rate is 0 percent (0/5)

and from the PING tool in the UC320W web interface the same:

PING 192.168.2.253 (192.168.2.253): 32 data bytes

From 192.168.2.253 icmp_seq=0 timed out

From 192.168.2.253 icmp_seq=2 timed out

From 192.168.2.253 icmp_seq=3 timed out

--- 192.168.2.253 ping statistics ---

6 packets transmitted, 0 packets received, 100% packet loss

---------------------

I cannot access the WAN port from anywhere.

What am I doing wrong? Any suggestions? Please feel free to make any or ask any further questions.

[Matthew Needs · Accepted solution]

Hi Ben,

First of all, there is a PMF file to allow ping on the UC's WAN port.. It's blocked by the UC's firewall by default.

https://supportforums.cisco.com/docs/DOC-16301

Try setting your Fa3 port to access.. It's a trunk at the moment. You're config is a little mixed up.

interface FastEthernet3

switchport access vlan 4

switchport mode access

FYI - If you need a port to be a trunk in the future with a different native VLAN(default is 1). Here is how you would do it..

interface FastEthernet3

switchport trunk encapsulation dot1q

switchport trunk native vlan 4

switchport mode trunk

Finally, double check your UC's remote access port is actually 8080 and that remote access is enabled through the GUI.

Hope it helps

Matt

[obencandemir]

Hi Matthew,

Thank you for your response.

I made the changes and applied the PMF. I can now ping the UC320W successfully from my router and other computers in the network.

I can also access the configuration from the WAN port now also which I couldn't before the ping started working. That remains a little mysterious as I would have thought the appliance would have responded despite filtering the pings.

Anyhow it all works now so I'm very pleased.

I could make and receive calls before by the way; but the lack of a response was disturbing; even though the WAN status was showing received and transmitted packets.

Thank you again.

[Matthew Needs]

Glad to help. Have fun!

Matt