Trex Connection failing between CMLand Trex stateless GUI (v2.61)

[mohanprasad]

Steps followed to Install Trex:

• Connect TREX eth0 interface to external connector.
  1. Set External Connector in bridge config mode
  2. Eth0 port is mgmt.

• Connect TREX eth1 interface to another router/switch,
  1. In eth1 we want to send traffic

• Give the below config in TREX for assigning static IP:

# this is a shell script which will be sourced at boot

hostname inserthostname-here

# configurable user account

USERNAME=xxx

PASSWORD=xxx

hostname trex-0

ip addr add dev eth0 172.18.29.123/24

ip link set dev eth0 up

The console would be like this after bringing up the lab:

• In CML available TREX version – 3.16.2:

• Download the TREX stateless GUI from

https://github.com/cisco-system-traffic-generator/trex-stateless-gui

Used the version v4.5.6.exe package which support of TRex v2.61.

• Installed it and able to open the GUI

• But not able to connect to TREX IP

Possible issues:

• Firewall blocking the IP
• Configuration (port number) in TREX might be issue.
• CML Trex version and exe file version might not be compatible.

[kipandiy]

Hi @mohanprasad The instruction setup looks good. The Trex 3.16.2 image will work well with Trex GUI v4.5.6. Guess it could be firewall blocking your configured IP.

[rkochery]

Hi @mohanprasad , Does external connectivity using bridge work for other node types? You could try connecting the ext-conn to a linux node and assign a static ip to it. Verify that external connectivity using bridge is working fine. Also refer external connectivity troubleshooting steps in CML troubleshooting FAQ item #7 or #8 depending on your deployment type.  https://developer.cisco.com/docs/modeling-labs/#!faq/troubleshooting