Per-VPRN SNMP Access | 7750

[ibxpe]

Hello
I have a problem with SNMP over VPRN interface:

TiMOS-C-14.0.R10

*A:ALU7750_01>config>service>vprn# info
----------------------------------------------
vrf-import "import-admin-vprn"
vrf-export "export-admin-vprn"
snmp
community "T3nlrB2.Pu2" hash2 rw version both
community "XQTko7.ReQOhUV2/8l5DoPyun3j3vJgh" hash2 rw version both
interface "to-interface_SNMP" create
address 10.74.30.253/30
sap lag-100:100 create
exit

From ServerSNMP:
[Server@cacti~]$ ping 10.74.30.253
PING 10.74.30.253 (10.74.30.253) 56(84) bytes of data.
64 bytes from 10.74.30.253: icmp_seq=1 ttl=253 time=0.565 ms
64 bytes from 10.74.30.253: icmp_seq=2 ttl=253 time=0.585 ms

[Server@cacti~]$ snmpwalk -v 2c -c broadbandcactus 10.74.30.253
Timeout: No Response from 10.74.30.253
[Server@cacti~]$ snmpwalk -v 2c -c broadbandcactus 10.74.30.253
Timeout: No Response from 10.74.30.253

Any idea, help me please: