Hello,
I have a VoIP generator that has two seperate ports for the call to establish and connect. I currently have a ports 0-3 (from the voip-gen) on a Cisco6506 (vlans 400-403) and ports 4-7 (from the voip gen) connected to a Cisco 4948 (vlans 400-403). However, I cannot see them unless I mirror them to a repeater hub? I'd like to be able to see them on the switch as a full call to analyze and test with.
See below configs...
c6506:
interface FastEthernet4/17
description NXT p0
switchport
switchport access vlan 400
switchport mode access
switchport nonegotiate
no cdp enable
spanning-tree portfast trunk
interface FastEthernet4/19
description NXT p1
switchport
switchport access vlan 401
switchport mode access
switchport nonegotiate
no cdp enable
spanning-tree portfast trunk
interface FastEthernet4/21
description NXT p2
switchport
switchport access vlan 402
switchport mode access
switchport nonegotiate
no cdp enable
spanning-tree portfast trunk
interface FastEthernet4/23
description NXT p3
switchport
switchport access vlan 403
switchport mode access
switchport nonegotiate
no cdp enable
spanning-tree portfast trunk
c4948:
cisco4948-12.4#sh run int g1/23
description NXT p4
switchport access vlan 400
switchport trunk encapsulation dot1q
switchport trunk allowed vlan none
switchport mode access
switchport nonegotiate
spanning-tree portfast trunk
interface GigabitEthernet1/24
description NXT p5
switchport access vlan 401
switchport trunk encapsulation dot1q
switchport trunk allowed vlan none
switchport mode access
spanning-tree portfast trunk
interface GigabitEthernet1/25
description NXT p6
switchport access vlan 402
switchport trunk encapsulation dot1q
switchport trunk allowed vlan none
switchport mode access
spanning-tree portfast trunk
interface GigabitEthernet1/26
description NXT p7
switchport access vlan 403
switchport trunk encapsulation dot1q
switchport trunk allowed vlan none
switchport mode access
spanning-tree portfast trunk
1) After generating the voip traffic, I get the follwing (SRP-B) from the 6506, which I did not expect. any ideas why?
cisco6506#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 2.2.2.5 - 0255.0255.0255 SRP-B (which is the phone IP on a /16)
Internet 2.2.3.5 - 0255.0255.0255 ARPA (which is the dest address on a /16)
2) I can only see the voip calls if I Mirror it to a repeater hub, which also doesn't make sense.
monitor session 1 source vlan 400 - 403 rx
monitor session 1 destination interface Gi2/15 >> repeater hub.
3) I've also tried mirroring to another switch vendor Alcatel-Lucent and also cannor see the voip calls/traffic.
This is a lab environment, so I can try just about anything.
Thanks!