F5 edge client physical address - empty

Hi all 

i have clients connecting through F5 edge client - the physical address part comes in empty - is it possible to assign a value to that ?

thanks 

PPP adapter _Commonxxxxxxxx:

Connection-specific DNS Suffix . : xxxxxx.com
Description . . . . . . . . . . . : _Common_xxxxxxxx
Physical Address. . . . . . . . . :
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 10.10.10.10(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 0.0.0.0