NAT Logs does not appear on monitor

[NyiNyiZin03487]

Hello Everyone,
I'd like to see and catch NAT log in my ASR 1006 and then I ran "ip nat log translations syslog". But NAT log doesn't appear when I check " show log". How can do for that?

 Here is the Logging command that I've already configure.

logging history size 500
logging history informational

logging origin-id hostname
logging source-interface GigabitEthernet0 vrf Mgmt-intf

[paul driver · Accepted solution]

Hello

You can check the nat translation table in detail or apply nat debug in detail to either the whole of the  NAT translation or specific to a access-list, the debug should be logged into the rtrs logging buffer. console or monitor

sh ip nat translation *
sh ip nat translation verbose
sh ip nat nvi translation *
sh ip nat nvi translation verbose
debug ip nat
debug ip nat  >acl>
debug ip nat  <acl> detailed

logging buffered informational

[NyiNyiZin03487]

it shows the following

005526: Jun 7 13:43:28: %SYS-5-LOG_CONFIG_CHANGE: Buffer logging: level informational, xml disabled, filtering disabled, size (102400)
005527: Jun 7 13:43:28: %PARSER-5-CFGLOG_LOGGEDCMD: User:nnz logged command:logging buffered informational
005528: Jun 7 13:43:29: %SYS-5-CONFIG_I: Configured from console by nnz on vty0 (192.168.99.44)
005531: Jun 7 13:43:50: %IOSXE-6-PLATFORM: F0: cpp_cp: QFP:0.1 Thread:203 TS:00004229536632276660 %LOGGER-6-DROPPED: 32 messages
005533: Jun 7 13:44:02: %IOSXE-6-PLATFORM: F1: cpp_cp: QFP:0.0 Thread:130 TS:00004229575621023341 %LOGGER-6-DROPPED: 6 messages
005539: Jun 7 13:44:50: %IOSXE-6-PLATFORM: F0: cpp_cp: QFP:0.1 Thread:162 TS:00004229596632311999 %LOGGER-6-DROPPED: 87 messages
005541: Jun 7 13:45:02: %IOSXE-6-PLATFORM: F1: cpp_cp: QFP:0.0 Thread:062 TS:00004229635622023831 %LOGGER-6-DROPPED: 42 messages

But Still cannot see NAT translation detail.

[paul driver]

Hello

Are you actually performing nat?
sh ip nat translation *
sh ip nat nvi translation *
logging buffered 7
sh logging

[NyiNyiZin03487]

Yes, I've already performed NAT and it still show these messages.

005747: Jun 8 08:46:33: %PARSER-5-CFGLOG_LOGGEDCMD: User:nnz logged command:logging buffered 7
005748: Jun 8 08:47:03: %PARSER-5-CFGLOG_LOGGEDCMD: User:nnz logged command:logging trap debugging
005749: Jun 8 08:47:06: %SYS-5-CONFIG_I: Configured from console by nnz on vty0 (192.168.99.44)
005750: Jun 8 08:47:30: %IOSXE-6-PLATFORM: F1: cpp_cp: QFP:0.0 Thread:031 TS:00004298184090568037 %LOGGER-6-DROPPED: 6 messages
005751: Jun 8 08:47:30: %IOSXE-6-PLATFORM: F0: cpp_cp: QFP:0.1 Thread:214 TS:00004298156558213867 %LOGGER-6-DROPPED: 81 messages
005752: Jun 8 08:47:34 YGN: NAT: GRE port: 0 - [56952]
005753: Jun 8 08:47:44 YGN: NAT: GRE port: 0 - [57208]
005754: Jun 8 08:47:54 YGN: NAT: GRE port: 0 - [57464]
005755: Jun 8 08:48:04 YGN: NAT: GRE port: 0 - [57720]
005756: Jun 8 08:48:14 YGN: NAT: GRE port: 0 - [57976]
005757: Jun 8 08:48:24 YGN: NAT: GRE port: 0 - [58232]
005758: Jun 8 08:48:30: %IOSXE-6-PLATFORM: F0: cpp_cp: QFP:0.1 Thread:050 TS:00004298216558274003 %LOGGER-6-DROPPED: 16 messages
005759: Jun 8 08:48:30: %IOSXE-6-PLATFORM: F1: cpp_cp: QFP:0.0 Thread:174 TS:00004298244091099801 %LOGGER-6-DROPPED: 10 messages
005760: Jun 8 08:48:34 YGN: NAT: GRE port: 0 - [58488]
005761: Jun 8 08:48:40: %PARSER-5-CFGLOG_LOGGEDCMD: User:nnz logged command:ip nat log translations syslog bind-only
005762: Jun 8 08:48:41: %SYS-5-CONFIG_I: Configured from console by nnz on vty0 (192.168.99.44)
005763: Jun 8 08:48:44 YGN: NAT: GRE port: 0 - [58744]
005764: Jun 8 08:48:54 YGN: NAT: GRE port: 0 - [59000]
005765: Jun 8 08:49:04 YGN: NAT: GRE port: 0 - [59256]
005766: Jun 8 08:49:14 YGN: NAT: GRE port: 0 - [59512]
005767: Jun 8 08:49:24 YGN: NAT: GRE port: 0 - [59768]
005768: Jun 8 08:49:30: %IOSXE-6-PLATFORM: F0: cpp_cp: QFP:0.1 Thread:121 TS:00004298276558402681 %LOGGER-6-DROPPED: 111 messages
005769: Jun 8 08:49:34 YGN: NAT: GRE port: 0 - [60024]
005770: Jun 8 08:49:41: %IOSXE-6-PLATFORM: F1: cpp_cp: QFP:0.1 Thread:074 TS:00004298314241243893 %LOGGER-6-DROPPED: 4 messages

[Georg Pauwen]

Hello,

you have this resolved ?

What if you configure:

ASR1006(config)# logging trap debug 

?

[paul driver]

Hello

possible bug  here

[NyiNyiZin03487]

I'd like to see NAT log on monitor screen. when I run with "ip nat log translation syslog". It doesn't appear on monitor screen. What can I do for that? Please give me advice.