output_log (truncated):

< 0x00000: 54 72 79 69  6e 67 20 37  33 2e 31 39  2e 32 33 37  Trying x.x.x.x
< 0x00010: 2e 35 2e 2e  2e 0d 0d 0a                            .x......

< 0x00000: 20 55 73 65  20 63 6f 6e  66 69 67 75  72 65 64 20   Use configured 
< 0x00010: 73 6f 75 72  63 65 20 69  6e 74 65 72  66 61 63 65  source interface
< 0x00020: 28 4c 6f 6f  70 62 61 63  6b 30 29 2e  0d 0d 0a     (Loopback0)....

< 0x00000: 20 55 73 65  20 36 38 2e  38 37 2e 32  35 33 2e 34   Use x.x.x.x
< 0x00010: 20 61 73 20  6c 6f 63 61  6c 20 61 64  64 72 65 73   as local addres
< 0x00020: 73 2e 0d 0d  0a                                     s....

< 0x00000: 43 6f 6e 6e  65 63 74 65  64 20 74 6f  20 37 33 2e  Connected to x.
< 0x00010: 31 39 2e 32  33 37 2e 35  2e 0d 0d 0a  45 73 63 61  x.x.x....Esca
< 0x00020: 70 65 20 63  68 61 72 61  63 74 65 72  20 69 73 20  pe character is 
< 0x00030: xx xx xx xx  xx xx xx xx                            '^^'....

< 0x00000: 0d 0a 0d 0a  63 65 2d 6f  72 70 6b 66  6c 68 64 30  ....xx-xxxxxxxxx
< 0x00010: 30 77 2e 63  70 65 2e 66  6c 2e 6a 61  63 6b 73 76  xx.xxx.xx.xxxxxx
< 0x00020: 69 6c 20 4c  45 2d 33 31  31 76 20 30  30 3a 30 33  il xx-xxxx xx:xx
< 0x00030: 3a 31 38 3a  66 35 3a 39  39 3a 38 30  0d 0a 0d 0a  :xx:xx:xx:xx....
< 0x00040: 75 73 65 72  6e 61 6d 65  3a 20                     username: 

xxxxxxxxxxx@xxxxxxxxxxx:~/xxxx/xxxxxxxxxxxxxxx/xxxxxxxxxx>

##</code><code>##

Input_log
xxxxx:xxxxx#telnet x.x.x.x
Trying x.x.x.x...
 Use configured source interface(xxxxx).
 Use x.x.x.x as local address.
Connected to x.x.x.x.
Escape character is '^^'.


xxxxx xxxxx xxxxx

username: 

##</code><code>##

	$session_parent->cmd("telnet $cienaIP");
	$session_parent->waitfor('/username: $/i');
	$session_parent->print($username);
#       $session_parent->print('username'); I've tried this
#       $session_parent->cmd($username); I've tried this
#       $session_parent->login($username,$password); I've tried this
# I've tried very long regex expressions thinking that maybe I need to match
# the whole expression "Trying x.x.x.x Use configured....username: " output 
# but that hasn't helped either.