Bonding NIC's

Hello, I’m trying to make bonding of eth0 and eth1 to bond0. I’ve created the bond0 interface and work fine. The problem is I have inbound calls but no outbound. Can you tell me little tip where to look to fix the issue.

P.S. The bond mode is load balancing.

alias bond0 bonding
options bond0 mode=balance-alb miimon=100