From 2.0.30, the privilege of LXC is downgraded to user level by the request from our SP customer.
The "pcamap show" command in LXC will not show the true value of MAC address.
bash-3.2# pcamap show
MAC_ADDR: 00:00:00:00:00:00
MODEL_NUM:
VERSION_ID:
MB_SERIAL_NUM:
MB_ASSEMBLY_NUM:
MB_REVISION_NUM:
SYSTEM_SERIAL_NUM:
MODEL_REVISION_NUM:
While the IXM gateway is running on the standalone mode, If you still need to read the MAC address from LXC, we suggest to create a python script in LXC to initiate SSH to the host, execute the CLI and return the result.
Steps and Python Scripts
Step 1
From host CLI, firstly you need to create secret, username, password and generate SSH crypto key
1) (config)#enable secret cisco
2) (config)#username cisco password cisco
3) (config)#crypto key generate rsa
Step 2
Create a python script (such as get_mac.py) in LXC
examples
bash-3.2# more get_mac.py
#!/usr/bin/python
##################################################################
#Name of script : get_mac.py
#usage : to get the device MAC address
#args : ssh-username , ssh-password and privileg-epassword
#usage example : python get_mac.py cisco cisco cisco
####################################################################
#!/usr/bin/python
import re
import pexpect
import sys
username=sys.argv[1]
password=sys.argv[2]
adminsecpassword=sys.argv[3]
cmd ='ssh '+username+'@10.0.3.1'
p=pexpect.spawn(cmd)
p.expect('password:')
p.sendline(password)
p.sendline("\n")
p.sendline("\n")
p.sendline("\n")
p.sendline("\n")
p.sendline("\n")
p.expect('>')
p.sendline("enable\n")
p.expect('Password:')
p.sendline(adminsecpassword)
p.expect('#')
p.sendline("show interfaces")
p.expect('#')
config=p.before
#print("Config Output ----\n %s" %config)
#host_ip = re.search(r'ip address (\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b)', config)
mac_addr = re.search(r'address is (([\dA-F]{2})[-:]([\dA-F]{2})[-:]([\dA-F]{2})[-:]([\dA-F]{2})[-:]([\dA-F]{2})[-:]([\dA-F]{2}))', config)
print mac_addr.group(1)
p.sendline("request shell exit")
Step 3
Run this script in LXC and get the return value of MAC
bash-3.2# python get_mac.py cisco cisco cisco
00:5F:86:5C:46:00
