not able to mount NFS via dedicated interface

[pkincl]

I have created dedicated interface to communicate with NFS storage (as already used in ESXi a XenServer). Interface is in the same IP range and VLAN. Ping is working fine, but the nfsscan ends with:
rpc mount export: RPC: Unable to receive; errno = No route to host
command '/sbin/showmount --no-headers --exports 10.7.1.34' failed: exit code 1

My network configuration is following:

iface ens3f0 inet manual

iface ens3f1 inet manual

iface ens3f2 inet manual

iface ens3f3 inet manual

iface eno1 inet manual

iface eno2 inet manual

auto bond0
iface bond0 inet manual
bond-slaves ens1f0np0 ens1f1np1
bond-miimon 100
bond-mode 802.3ad
bond-xmit-hash-policy layer2+3

auto bond0.1055
iface bond0.1055 inet manual

auto bond0.1007
iface bond0.1007 inet manual

auto vmbr0
iface vmbr0 inet static
bridge-ports bond0
bridge-stp off
bridge-fd 0
bridge-vlan-aware yes
bridge-vids 2-4094

auto vmbr1055
iface vmbr1055 inet static
address 10.55.55.51/24
gateway 10.55.55.254
bridge-ports bond0.1055
bridge-stp off
bridge-fd 0
bridge-vlan-aware yes
bridge-vids 2-4094

auto vmbr1007
iface vmbr1007 inet static
address 10.7.1.51/24
bridge-ports bond0.1007
bridge-stp off
bridge-fd 0

Bold is marked adapter for NFS communication.

Do you have please any suggestion, where to found the problem? Many thanks

 

[pkincl]

It seems the problem was in the firewall. Despite the FW was off, it helped to turn INPUT rule to ACCEPT. Strange.