hello
i have configured cisco expressway test environment. jabber when present in inside network is working fine (registration, two way voice). i also changed the ip of external dns to inside subnet and change the dns of jabber, it was working as well. but i when i moved jabber client and external server to outside test environment (using one NAT) then jabber is registered but i there is one way voice. i can make call from desktop phone to jabber but cannot make call from jabber to desktop phone. ntp is sync and traversal zone is active. i think that issue is with the nat. see the attached diagram.following is the brief info regarding environment
cucm.test.com: 10.0.30.11
ips.test.com: 10.0.30.12
expc.test.com: 10.0.30.13
internal dns: 10.0.30.10
gateway: 10.0.30.1
expc.test.com: 10.0.10.2 (one LAN, static nat enabled, public ip address of expc mentioned)
public test ip of int: 10.0.100.20
public test ip of expe: 10.0.100.21
public test ip of jabber windows client: 10.0.100.55
public test ip of external dns server: 10.0.100.10
internal dns records:
AAA Records:
cucm.test.com 10.0.30.11
imps.test.com 10.0.30.12
expe.test.com 10.0.10.2
SRV Records:
_cisco-uds._tcp.test.com ----> cucm.test.com
_cuplogin._tcp.test.com ---->imps.test.com
External dns records:
AAA Records:
expe.test.com 10.0.100.21
SRV Records:
_collab-edge._tls.test.com
Configuration on NAT Router:
---------------------------------------
int vlan 10
ip addr 10.0.10.1
ip nat inside
int vlan 30
ip addr 10.0.30.1
ip nat inside
int f0/0
ip addr 10.0.100.20 255.255.255.0
ip nat outside
access-list 10 permit 10.0.30.0 0.0.0.255
access-list 10 pmerit 10.0.10.0 0.0.0.255
ip nat inside source list 10 int f0/0 overload
ip nat inside source static 10.0.10.2 10.0.100.21
i have doubt regarding nat config and expe ip address mentioned in A record of internal DNS (highlighted in Red)
Regards
