LTM - Linux Servers not able to use load balanced LDAP

I recently created a load balanced LDAP VIP using the f5.ldap iAPP. It seems to work fine with windows machines, but we are having trouble with a couple different Linux systems. Is there any known "gotchas" with this? I have some different logs from the Linux servers. There is no firewall between these systems. I did a packet capture from the Linux system and it makes a complete TCP handshake (SYN, - SYN,ACK - ACK) but when the Linux system sends the bind request it receives an immediate [RST] similar to what the telnet log is showing below. The F5 appears to be closing the port immediately. I have posted my system model and software version. I will be opening a case with support but wanted to reach out here as well. If you have any other troubleshooting recommendations or tools let me know.

 

My F5 Environment

 

Platform Name BIG-IP 4200

 

Software Version BIG-IP v11.4.1 (Build 625.5)

 

Linux Log from Telnet

 

[LINUX MACHINE]$ telnet 10.39.1.1 389

 

Trying 10.39.1.1...

 

Connected to 10.39.1.1.

 

Escape character is '^]'.

 

Connection closed by foreign host

 

LDAP SEACH/BIND from LINUX SYSTEM

 

]$ ldapsearch -h 10.39.1.1 -p 389 -s base -d 1 -vv "DC=MYDOMAIN,DC=net"

 

ldap_initialize( ldap://10.39.1.1:389 )

 

ldap_create

 

ldap_url_parse_ext(ldap://10.39.1.1:389)

 

ldap_pvt_sasl_getmech

 

ldap_search

 

put_filter: "(objectclass=*)"

 

put_filter: simple

 

put_simple_filter: "objectclass=*"

 

ldap_send_initial_request

 

ldap_new_connection 1 1 0

 

ldap_int_open_connection

 

ldap_connect_to_host: TCP 10.39.1.1:389

 

ldap_new_socket: 3

 

ldap_prepare_socket: 3

 

ldap_connect_to_host: Trying 10.39.1.1:389

 

ldap_pvt_connect: fd: 3 tm: -1 async: 0

 

attempting to connect:

 

connect success

 

ldap_open_defconn: successful

 

ldap_send_server_request

 

ber_scanf fmt ({it) ber:

 

ber_scanf fmt ({) ber:

 

ber_flush2: 64 bytes to sd 3

 

ldap_result ld 0x1788270 msgid 1

 

wait4msg ld 0x1788270 msgid 1 (infinite timeout)

 

wait4msg continue ld 0x1788270 msgid 1 all 1

 

** ld 0x1788270 Connections:

 

• host: 10.39.1.1 port: 389 (default) refcnt: 2 status: Connected last used: Fri May 1 15:28:42 2015

** ld 0x1788270 Outstanding Requests:

 

• msgid 1, origid 1, status InProgress

outstanding referrals 0, parent count 0

 

ld 0x1788270 request count 1 (abandoned 0)

 

** ld 0x1788270 Response Queue:

 

Empty

 

ld 0x1788270 response count 0

 

ldap_chkResponseList ld 0x1788270 msgid 1 all 1

 

ldap_chkResponseList returns ld 0x1788270 NULL

 

ldap_int_select

 

read1msg: ld 0x1788270 msgid 1 all 1

 

ber_get_next

 

ldap_msgfree

 

ldap_err2string

 

ldap_sasl_interactive_bind_s: Can't contact LDAP server (-1)

 

ldap_free_request (origid 1, msgid 1)

 

ldap_free_connection 1 1

 

ldap_free_connection: actually freed