SNMP Konfigurieren

SNMPv3

Timeout Error

# snmpget -v 2c -c public localhost sysUpTime.0
Timeout: No Response from localhost.

# snmpget -v 3 -u USER -A PASSWORD localhost sysUpTime.0
snmpget: Timeout (Sub-id not found: (top) -> sysUpTime)

# snmpd -p /var/run/net_snmpd.pid -f -Lo -D udpbase:recv
registered debug token udpbase:recv, 1
/usr/local/share/snmp/snmpd.conf: line 18: Warning: Unknown token: agendAddress.
Turning on AgentX master support.
NET-SNMP version 5.7.2
udpbase:recv: got source addr: 127.0.0.1
Connection from UDP: [127.0.0.1]:43137->[127.0.0.1]:161

snmplib/transports/snmpUDPDomain.c
netsnmp_transport *netsnmp_udp_transport(struct sockaddr_in *addr, int local)
{
    netsnmp_transport *t = NULL;

    t->domain = netsnmpUDPDomain;
    t->domain_length = netsnmpUDPDomain_len;
    t->msgMaxSize = 0xffff - 8 - 20;
    t->f_recv     = netsnmp_udpbase_recv;
    t->f_send     = netsnmp_udpbase_send;
    t->f_close    = netsnmp_socketbase_close;
    t->f_accept   = NULL;
    t->f_fmtaddr  = netsnmp_udp_fmtaddr;
}

snmplib/transports/snmpUDPBaseDomain.c
int netsnmp_udpbase_recv(netsnmp_transport *t, void *buf, int size, void **opaque, int *olength)

snmplib/transports/snmpUDPDomain.c
int netsnmp_udp_recvfrom(int s, void *buf, int len, struct sockaddr *from, socklen_t *fromlen, struct sockaddr *dstip, socklen_t *dstlen, int *if_index)

snmplib/transports/snmpUDPIPv4BaseDomain.c
int netsnmp_udpipv4_recvfrom(int s, void *buf, int len, struct sockaddr *from, socklen_t *fromlen, struct sockaddr *dstip, socklen_t *dstlen, int *if_index)

snmplib/transports/snmpUDPBaseDomain.c
int netsnmp_udpbase_recvfrom(int s, void *buf, int len, struct sockaddr *from, socklen_t *fromlen, struct sockaddr *dstip, socklen_t *dstlen, int *if_index)

# cat /etc/pf.conf
[...]
set skip on lo
[...]

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