Solved: Cisco 877VA and SIP service - inbound call possible outbound not possible

cristian.a · ‎05-03-2018

Hi Guy , like in description I have this problem with a Cisco 877va and a Grandstream with a SIP service . I have chose the simply way to work with this system but I canot solve the question. THe sip phone is located on address 192.168.1.54 Configuration is :

Andromeda_887VA-K9#sh config
Using 3189 out of 262136 bytes
!
! Last configuration change at 17:21:03 GMT Fri Feb 2 2018 by Quasar
!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Andromeda_887VA-K9
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
clock timezone GMT 1 0
clock summer-time BST recurring last Sun Mar 2:00 last Sun Oct 2:00
!
crypto pki trustpoint TP-self-signed-2909530827
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-2909530827
revocation-check none
rsakeypair TP-self-signed-2909530827
!
!
crypto pki certificate chain TP-self-signed-2909530827
certificate self-signed 01 nvram:IOS-Self-Sig#1.cer
!
!
!
!
!
!
!
!

!
ip dhcp excluded-address 192.168.1.1
!
ip dhcp pool Data_pack
import all
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 83.37.17.51 85.38.28.97
!
!
!
ip name-server 83.37.17.51
ip name-server 85.38.28.97

!
ip cef
no ipv6 cef
!
!
!
!
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
cts logging verbose
license udi pid C887VA-K9 sn FCZ2049E2KG
!
!
username Qxxxxxx privilege 15 password 0 xxxxxxxxxxxxxxxx
!
!
!
!
!
controller VDSL 0
operating mode vdsl2
modem PTM
!
!
!
!
!
!
!
!
!
!
!
!
interface ATM0
no ip address
ip flow ingress
shutdown
no atm ilmi-keepalive
!
interface Ethernet0
no ip address
!
interface Ethernet0.835
encapsulation dot1Q 835

!
interface FastEthernet0
no ip address
!
interface FastEthernet1
no ip address
!
interface FastEthernet2
no ip address
!
interface FastEthernet3
no ip address
!
interface Vlan1
ip address 192.168.1.1 255.255.255.0
ip nat inside
no ip virtual-reassembly in
ip tcp adjust-mss 1452
!
interface Dialer0
mtu 1492
ip address negotiated
no ip redirects
no ip proxy-arp
ip flow ingress
ip nat outside
ip virtual-reassembly in
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication pap chap callin
ppp chap hostname timadsl
ppp chap password 0 timadsl
ppp pap sent-username xxxx password 0 xxxx
ppp ipcp dns request accept
ppp ipcp route default
ppp ipcp address accept
no cdp enable
!
ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
!
!
ip nat inside source list 1 interface Dialer0 overload
ip nat inside source static tcp 192.168.1.54 5004 interface Dialer0 5004
ip route 0.0.0.0 0.0.0.0 Dialer0
!
!
access-list 1 permit 0.0.0.0 255.255.255.0
access-list 1 permit 192.168.1.0 0.0.0.255
access-list 100 permit ip any any
access-list 100 permit tcp any any eq www
access-list 100 permit udp any any
!
control-plane
!
!
mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
!
mgcp profile default
!
!
!
!
!
!
!
line con 0
no modem enable
line aux 0
line vty 0 4
login local
transport input telnet ssh
!
scheduler allocate 20000 1000
!
!
!
end

Please someone can help me ? Thank you

Georg Pauwen · ‎05-03-2018

Hello,

I think SIP uses 5060. 5004 is for RTP. Also, encrypted SIP uses 5061. Try and add all of the below to your config:

ip nat inside source static tcp 192.168.1.54 5004 interface Dialer0 5004

ip nat inside source static udp 192.168.1.54 5004 interface Dialer0 5004

ip nat inside source static tcp 192.168.1.54 5060 interface Dialer0 5060

ip nat inside source static tcp 192.168.1.54 5061 interface Dialer0 5061

ip nat inside source static udp 192.168.1.54 5060 interface Dialer0 5060

ip nat inside source static udp 192.168.1.54 5061 interface Dialer0 5061

View solution in original post

Georg Pauwen · ‎05-03-2018