if i use the Standard-Linux-Templates in zabbix with the EQL, all works good and i get values.

if i use this template: https://www.zabbix.org/wiki/Monitoring_Dell_Equallogic_Systems

i get "Timeout while connecting to "10.49.17.10:161""
but thats false.. i can run snmpwalk from the zabbix Server

in attach a smal logfile from this Output:
egrep '10.49.17.10|ms-euderd-eql01' /var/log/zabbix/zabbix_server.log* >> /tmp/zabbix_server_eql.log

tcpdump looks like:
tcpdump -i eth0 -A udp port 161 and src 10.49.17.10 or dst 10.49.17.10
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
14:35:16.818484 IP ms-euderd-zbx01.mosys.local.57507 > 10.49.17.10.snmp: GetNextRequest(33) E:12740.4.1.1.1.5.1
E..LG.@[email protected]
1.I
1.
+.....D........public.!..p.| ......0.0..
14:35:16.820717 IP 10.49.17.10.snmp > ms-euderd-zbx01.mosys.local.57507: GetResponse(40) E:12740.4.1.1.1.5.1.1384212273.2=1
E..SU'..@...
1.

1.I.....?.*05.....public.(..p.| ......0.0...+.....D..........1....
14:35:16.821033 IP ms-euderd-zbx01.mosys.local.57507 > 10.49.17.10.snmp: GetNextRequest(39) E:12740.4.1.1.1.5.1.1384212273.2
E..RG.@[email protected]
1.I
1.
.....>6.04.....public.'..p.|
......0.0...+.....D..........1...
14:35:16.823770 IP 10.49.17.10.snmp > ms-euderd-zbx01.mosys.local.57507: GetResponse(42) E:12740.4.1.1.1.6.1.1384212273.2=3888822
E..UU(..@...
1.

1.I.....A..07.....public.*..p.|
......0.0...+.....D..........1.A.;V.
14:35:35.588824 IP ms-euderd-zbx01.mosys.local.50403 > 10.49.17.10.snmp: C=default GetRequest(30) interfaces.ifTable.ifEntry.ifOutOctets.6
E..JG.@[email protected]
1.I
1.
.....65.0,.....default......oY......0.0..
+...........
14:35:35.776230 IP ms-euderd-zbx01.mosys.local > 10.49.17.10: ICMP echo request, id 26402, seq 0, length 76
E..`G.@[email protected]
1.I
1.
....g".............S........................................................
14:35:36.777357 IP ms-euderd-zbx01.mosys.local > 10.49.17.10: ICMP echo request, id 26402, seq 1, length 76
E..`G.@[email protected]
1.I
1.
..Z.g".............S...._...................................................
14:35:37.777421 IP ms-euderd-zbx01.mosys.local > 10.49.17.10: ICMP echo request, id 26402, seq 2, length 76
E..`G.@[email protected]
1.I
1.
....g".............S........................................................
14:35:45.590788 IP ms-euderd-zbx01.mosys.local.45952 > 10.49.17.10.snmp: C=default GetRequest(30) interfaces.ifTable.ifEntry.ifAdminStatus.3
E..JG.@[email protected]
1.I
1.
.....65.0,.....default....:..u......0.0..
+...........
^C
9 packets captured
9 packets received by filter
0 packets dropped by kernel