snmpwalk 社区结果超时

Question

我snmpwalk突然停止工作，这是工作较早，重新启动 snmp 后也没有工作，snmpwalk -v1 -c让我超时，它也适用于其他机器。

我尝试snmpconf使用社区字符串和 IP 地址重新创建，但仍然没有通过。

在签入消息时，我得到了这样的消息：

10 月 19 日 05:07:34 manilavoice rsyslogd-2177：由于速率限制，imuxsock 开始丢弃来自 pid 8448 的消息“进程 ID 与 snmpd 服务相关

当我这样跑时，我收到一条消息snmpwalk -d 10.30.2.58：

[root@manilavoice gopal]# snmpwalk -d 10.30.2.58
No log handling enabled - turning on stderr logging

Sending 64 bytes to UDP: [10.30.2.58]:161->[0.0.0.0]
0000: 30 3E 02 01  03 30 11 02  04 53 BF 41  80 02 03 00    0>...0...S.A....
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 14  04 00 04 00    ..........0.....
0048: A0 0E 02 04  68 CA 67 C6  02 01 00 02  01 00 30 00    ....h.g.......0.

最后：

snmpwalk: Timeout

任何意见将不胜感激。我的防火墙和 SElinux 也关闭了。此外，同一个snmpd.conf文件在不同的位置也能正常工作。

编辑#1

我试过这个，并得到以下结果：

[root@manilavoice spool]# mount -vvv 10.30.4.20:/volume2/Asterisk_Recordings 
/var/spool/newnfs

mount: fstab path: "/etc/fstab"
mount: mtab path:  "/etc/mtab"
mount: lock path:  "/etc/mtab~"
mount: temp path:  "/etc/mtab.tmp"
mount: UID:        0
mount: eUID:       0
mount: no type was given - I'll assume nfs because of the colon
mount: spec:  "10.30.4.20:/volume2/Asterisk_Recordings"
mount: node:  "/var/spool/newnfs"
mount: types: "nfs"
mount: opts:  "(null)"
mount: external mount: argv[0] = "/sbin/mount.nfs"
mount: external mount: argv[1] = "10.30.4.20:/volume2/Asterisk_Recordings"
mount: external mount: argv[2] = "/var/spool/newnfs"
mount: external mount: argv[3] = "-v"
mount: external mount: argv[4] = "-o"
mount: external mount: argv[5] = "rw"
mount.nfs: timeout set for Sat Oct 19 14:23:33 2013
mount.nfs: trying text-based options 'vers=4,addr=10.30.4.20,clientaddr=10.30.4.48'
mount.nfs: mount(2): Connection timed out
mount.nfs: Connection timed out

Answer 1

尝试打开调试看看发生了什么：

$ snmpwalk -D ALL

手册页摘录

Debugging
  -d                    dump input/output packets in hexadecimal
  -D TOKEN[,...]        turn on debugging output for the specified TOKENs
                           (ALL gives extremely verbose debugging output)