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scottynize
New Contributor

running different phones (Aastra) (Polycom) on same 3448 in different vlans. how can I get these 2 to talk to each other?

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No audio as the call is being sent back to SBC. and SBC sees this coming from same IP (NAT'ed). Looking to see if there is a cmd i can enter (bridge)/ that allows phones to "Talk" across networks on same NetVanta.

ip dhcp pool "Data Network"

  network 192.168.1.0 255.255.255.0

  dns-server xxxxxxxx  xxxxxxxxx

  netbios-node-type h-node

  default-router 192.168.1.1

  option 42 ip 192.168.1.1

!

ip dhcp pool "Aastra Network"

  vrf VoIP

  network 10.10.10.0 255.255.255.0

  dns-server xxxxxxxx  xxxxxxxxxx

  default-router 10.10.10.1

  option 42 ip 10.10.10.1

!

ip dhcp pool "Polycom Network"

  vrf VoIP

  network 10.10.7.0 255.255.255.0

  dns-server xxxxxxxxx  xxxxxxxxx

  default-router 10.10.7.1

  option 42 ip 10.10.7.1

  option 66 ascii https://xxxxxxxxxxxxx

vlan 1

  name "Default"

!

vlan 6

  name "Aastra_VoIP"

!

vlan 7

  name "Polycom_VoIP"

!

vlan 21

  name "WAN_Inet"

!

vlan 23

  name "WAN_VoIP"

interface switchport 0/1

  description Phone Port

  spanning-tree edgeport

  no shutdown

  switchport mode trunk

  switchport voice vlan 7 cos 3 dscp 24

  switchport voice-signaling vlan 7 cos 3 dscp 24

!

interface switchport 0/2

  description Phone Port

  spanning-tree edgeport

  no shutdown

  switchport mode trunk

  switchport voice vlan 6

  switchport voice-signaling vlan 6 cos 3 dscp 24

  no lldp send

interface vlan 1

  description LAN Inet

  ip address  192.168.1.1  255.255.255.0

  no ip proxy-arp

  ip access-policy NAT-Data

  no awcp

  no shutdown

!

interface vlan 6

  description Aastra VoIP

  vrf forwarding VoIP

  ip address  10.10.10.1  255.255.255.0

  no ip proxy-arp

  ip access-policy NAT-VoIP

  media-gateway ip primary

  qos-policy in SET-DSCP-LAN

  no awcp

  no shutdown

!

interface vlan 7

  description Polycom VoIP

  vrf forwarding VoIP

  ip address  10.10.7.1  255.255.255.0

  no ip proxy-arp

  ip access-policy NAT-VoIP

  media-gateway ip primary

  qos-policy in SET-DSCP-LAN

  no awcp

  no shutdown

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1 Solution

Accepted Solutions
jayh
Honored Contributor
Honored Contributor

Re: running different phones (Aastra) (Polycom) on same 3448 in different vlans. how can I get these 2 to talk to each other?

Jump to solution

Assuming that MATCH-PRIVATE-VoIP contains both 10.10.7.0/24 and 10.10.10.0/24, try:

ip policy-class NAT-VoIP

  allow list MATCH-PRIVATE-VoIP

  allow list MATCH-PRIVATE-VoIP self

nat source list MATCH-ALL interface eth 0/1.23 overload

The keyword "self" permits traffic to the router itself but not to hosts on the interface.

You could also do

allow list MATCH-PRIVATE-VoIP policy NAT-VoIP

but I think the allow list minus keyword self should be fine.

View solution in original post

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4 Replies
jayh
Honored Contributor
Honored Contributor

Re: running different phones (Aastra) (Polycom) on same 3448 in different vlans. how can I get these 2 to talk to each other?

Jump to solution

What does your NAT-VoIP access policy look like? Is IP routing enabled on the 3448? Can you ping between a device on vlan 6 and one on vlan 7?

scottynize
New Contributor

Re: running different phones (Aastra) (Polycom) on same 3448 in different vlans. how can I get these 2 to talk to each other?

Jump to solution

Jay, i believe you are onto something here...we are looking into the NAT-VoIP policy to see how to open access between these two vlans. any insight would be appreciated. thanks.

interface eth 0/1

  description WAN Uplink

  encapsulation 802.1q

  no shutdown

!

interface eth 0/1.21

  description WAN Inet

  vlan-id 21

  ip address dhcp

  ip access-policy PUBLIC-WAN

  no awcp

  no shutdown

interface eth 0/1.23

  description WAN VoIP

  vlan-id 23

  vrf forwarding VoIP

  ip address dhcp

  ip access-policy PUBLIC-WAN

  media-gateway ip primary

  qos-policy in SET-DSCP-WAN

  no awcp

  no shutdown

!

interface eth 0/2

  no ip address

  shutdown

ip policy-class NAT-Data

  allow list MATCH-PRIVATE-Data self

  nat source list MATCH-ALL interface eth 0/1.21 overload

!

ip policy-class NAT-VoIP

  allow list MATCH-PRIVATE-VoIP self

  nat source list MATCH-ALL interface eth 0/1.23 overload

!

ip policy-class PUBLIC-WAN

  allow list ADMIN-ACCESS self

  allow list VoIP-INBOUND self

jayh
Honored Contributor
Honored Contributor

Re: running different phones (Aastra) (Polycom) on same 3448 in different vlans. how can I get these 2 to talk to each other?

Jump to solution

Assuming that MATCH-PRIVATE-VoIP contains both 10.10.7.0/24 and 10.10.10.0/24, try:

ip policy-class NAT-VoIP

  allow list MATCH-PRIVATE-VoIP

  allow list MATCH-PRIVATE-VoIP self

nat source list MATCH-ALL interface eth 0/1.23 overload

The keyword "self" permits traffic to the router itself but not to hosts on the interface.

You could also do

allow list MATCH-PRIVATE-VoIP policy NAT-VoIP

but I think the allow list minus keyword self should be fine.

View solution in original post

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scottynize
New Contributor

Re: running different phones (Aastra) (Polycom) on same 3448 in different vlans. how can I get these 2 to talk to each other?

Jump to solution

Jay, Appreciate the input here....using the line allow list MATCH-PRIVATE-VoIP policy NAT-VoIP worked.....using the other two lines together only allowed outside audio to flow, but if i used the line without "self" inside calls between netwrks flowed but not outside.