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Knowledge Base

U1900 can't reach Network subnet 172.20.X.X

Publication Date:  2017-01-03  |   Views:  242  |   Downloads:  0  |   Author:  m00315569  |   Document ID:  EKB1000446512

Contents

Issue Description

i have one project with Goverment Sector.

the customer has one branch and need to install Huawei U1911 (V200R003C20SPC200) with Huawei IP Phones (7910,7950 & 8950), and the customer has Cisco Call Manager with Cisco IP Phones implemented in HQ.

the customer request us to do integration between Huawei Cluster & Cisco Cluster to make intercluster call from Huawei IPT to Cisco IPT.

- the IP Address of Huawei U1911 is 172.16.30.110.

- the IP Address of Cisco Call Manager is 172.20.1.10.

the issue is :

Huawei U1911 can reach all VLANs subnet in customer netowork except Cisco call manager subnet (172.20.X.X)

Handling Process

after some troubleshooting i found that U1911 has inner IP address which cause this issue.

i excuted one command on U1911 CLI (show inne networkip) the output was 172.20.0.17.

when i chnage the inner IP Address of U1911 to another subnet the issue has bee resolved between Cisco Call Manager and Huawei U1911.

to change the inner IP i used the foloowing command:

config modify inner networkip 172.10.0.17

Solution

when i chnage the inner IP Address of U1911 to another subnet the issue has bee resolved between Cisco Call Manager and Huawei U1911.

to change the inner IP i used the foloowing command:

config modify inner networkip 172.10.0.17