topic Continuous PARSE_ERROR and HTTP_REQ_BEGIN_ERR messages on 5508 Controller in Wireless

Continuous PARSE_ERROR and HTTP_REQ_BEGIN_ERR messages on 5508 Controller

schulcz — Mon, 05 Jul 2021 18:41:14 GMT

Hi All,

I am getting a continuous stream of messages like the ones below on my 5508 WLC:

*webauthRedirect: Feb 11 15:08:47.373: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= b4:cd:27:d0:19:6c bytes parsed = 0 and bytes read = 156
*webauthRedirect: Feb 11 15:08:47.373: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 11 15:08:47.174: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= c8:38:70:90:1c:1d bytes parsed = 0 and bytes read = 176
*webauthRedirect: Feb 11 15:08:47.174: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 11 15:08:46.333: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= b4:cd:27:d0:19:6c bytes parsed = 0 and bytes read = 517
*webauthRedirect: Feb 11 15:08:46.333: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 11 15:08:46.289: %EMWEB-4-READ_ERROR: webauth_redirect.c:2192 Remote client closed connection (bytes read=131, errno=0).
*webauthRedirect: Feb 11 15:08:46.277: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= d8:c7:71:dd:ca:14 bytes parsed = 0 and bytes read = 179
*webauthRedirect: Feb 11 15:08:46.277: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 11 15:08:46.265: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= d8:c7:71:dd:ca:14 bytes parsed = 0 and bytes read = 179
*webauthRedirect: Feb 11 15:08:46.265: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 11 15:08:46.243: %EMWEB-4-READ_ERROR: webauth_redirect.c:2192 Remote client closed connection (bytes read=131, errno=0).
*webauthRedirect: Feb 11 15:08:46.231: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= d8:c7:71:dd:ca:14 bytes parsed = 0 and bytes read = 179
*webauthRedirect: Feb 11 15:08:46.231: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 11 15:08:46.220: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= d8:c7:71:dd:ca:14 bytes parsed = 0 and bytes read = 179
*webauthRedirect: Feb 11 15:08:46.220: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 11 15:08:46.201: %EMWEB-4-READ_ERROR: webauth_redirect.c:2192 Remote client closed connection (bytes read=131, errno=0).
*webauthRedirect: Feb 11 15:08:46.200: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= d8:c7:71:dd:ca:14 bytes parsed = 0 and bytes read = 185
*webauthRedirect: Feb 11 15:08:46.200: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 11 15:08:46.191: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= d8:c7:71:dd:ca:14 bytes parsed = 0 and bytes read = 179
*webauthRedirect: Feb 11 15:08:46.191: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 11 15:08:46.184: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= b4:cd:27:d0:19:6c bytes parsed = 0 and bytes read = 207
*webauthRedirect: Feb 11 15:08:46.184: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character

We have an SSID for guest Wifi Access with Layer 3 as Passthrough and WebAuth is Customized Login Page is login.html. This login.html is simply a button which users must confirm a button to say they accept T's & C's and the click on a connect button - simple and straightforward - and it works. We have no wired guests. Client MACs seen in error messages always connected to the guest network, not to the corporate wlan.

It's a single, standalone controller deployment, no other wlcs on the network.

Code version: 8.5.140.0

APs: many of 1602s and 2802s

Thanks!

Re: Continuous PARSE_ERROR and HTTP_REQ_BEGIN_ERR messages on 5508 Controller

Mark Elsen — Tue, 11 Feb 2020 15:56:40 GMT

- Check the reply from Scott Fella in this thread :

https://community.cisco.com/t5/wireless-and-mobility/continuous-parse-error-and-http-req-begin-err-messages-on-2504/td-p/2955521

Re: Continuous PARSE_ERROR and HTTP_REQ_BEGIN_ERR messages on 5508 Controller

schulcz — Wed, 12 Feb 2020 08:14:37 GMT

I have read that comment, so I tried enable sleeping clients feature already, but didn't helped for me. (session idle timer is disabled)

Current logs from WLC:

*webauthRedirect: Feb 12 08:10:55.773: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= bc:43:8:12:f1:8 bytes parsed = 0 and bytes read = 214
*webauthRedirect: Feb 12 08:10:55.773: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 12 08:10:55.521: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= 6c:fa:a7:db:e9:b2 bytes parsed = 0 and bytes read = 122
*webauthRedirect: Feb 12 08:10:55.521: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 12 08:10:55.495: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= 6c:fa:a7:db:e9:b2 bytes parsed = 0 and bytes read = 122
*webauthRedirect: Feb 12 08:10:55.495: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 12 08:10:53.975: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= bc:43:8:12:f1:8 bytes parsed = 0 and bytes read = 214
*webauthRedirect: Feb 12 08:10:53.975: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 12 08:10:53.954: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= bc:43:8:12:f1:8 bytes parsed = 0 and bytes read = 214
*webauthRedirect: Feb 12 08:10:53.954: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 12 08:10:53.929: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= bc:43:8:12:f1:8 bytes parsed = 0 and bytes read = 214
*webauthRedirect: Feb 12 08:10:53.929: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 12 08:10:53.467: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= bc:43:8:12:f1:8 bytes parsed = 0 and bytes read = 214
*webauthRedirect: Feb 12 08:10:53.467: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 12 08:10:53.448: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= bc:43:8:12:f1:8 bytes parsed = 0 and bytes read = 214
*webauthRedirect: Feb 12 08:10:53.448: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 12 08:10:53.432: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= bc:43:8:12:f1:8 bytes parsed = 0 and bytes read = 214
*webauthRedirect: Feb 12 08:10:53.432: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character
*webauthRedirect: Feb 12 08:10:53.193: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= 84:fd:d1:55:ec:45 bytes parsed = 4 and bytes read = 566
*webauthRedirect: Feb 12 08:10:53.193: %EMWEB-6-REQ_NOT_GET_ERR: http_parser.c:616 http request is not GET
*webauthRedirect: Feb 12 08:10:53.054: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= 84:fd:d1:55:ec:45 bytes parsed = 4 and bytes read = 566
*webauthRedirect: Feb 12 08:10:53.054: %EMWEB-6-REQ_NOT_GET_ERR: http_parser.c:616 http request is not GET
*webauthRedirect: Feb 12 08:10:52.873: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= 84:fd:d1:55:ec:45 bytes parsed = 4 and bytes read = 566
*webauthRedirect: Feb 12 08:10:52.873: %EMWEB-6-REQ_NOT_GET_ERR: http_parser.c:616 http request is not GET
*webauthRedirect: Feb 12 08:10:51.646: %EMWEB-6-PARSE_ERROR: webauth_redirect.c:2222 parser exited. client mac= 84:fd:d1:55:ec:45 bytes parsed = 0 and bytes read = 517
*webauthRedirect: Feb 12 08:10:51.646: %EMWEB-6-HTTP_REQ_BEGIN_ERR: http_parser.c:580 http request should begin with a character

However I wrote bad informations yesterday, there is L3 authentication, not only an accept button.

Re: Continuous PARSE_ERROR and HTTP_REQ_BEGIN_ERR messages on 5508 Con

rhallan — Wed, 29 Jun 2022 17:29:27 GMT

Did the issue get resolve ?

I am running Version 8.10 code and see similar error:

*webauthRedirect: Jun 29 11:24:07.063: %EMWEB-6-HTTP_REQ_BEGIN_ERR: [PA]http_parser.c:580 http request should begin with a character
*webauthRedirect: Jun 29 11:24:07.036: %EMWEB-6-PARSE_ERROR: [PA]webauth_redirect.c:2391 parser exited. client mac= 5e:88:d4:10:1a:63 bytes parsed = 0 and bytes read = 517