if using "SourceIP" in zabbix server configuration, there exist problem with icmp* simple check, because using fping to icmp ping with -S argument as SourceIP, but official last fping 2.4b2 version didn't have this feature.
After patching fping with patch or using fping version 2.4b2_to-ipv6 [ http://unfix.org/projects/ipv6/fping-2.4b2_to-ipv6.tar.gz ], there is exist -I argument for source interface/ip. But is needed to patch .../zabbix-1.8.3/src/libs/zbxicmpping/icmpping.c on line 64:
- i += zbx_snprintf(params + i, sizeof(/source_ip/params) - i, " -S%s ", CONFIG_SOURCE_IP);
+ i += zbx_snprintf(params + i, sizeof(/source_ip/params) - i, " -I%s ", CONFIG_SOURCE_IP);
or exist "other version" ??