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HTTP Protocol Questions

By Mr_Milo ·
Can someone identify these packets - Please help....

There is an intermitent problem we are seeing when accessing a .csp page on a webserver.

Most times the excel report is displayed. Sometimes the User gets a blank page???

The following packets may be associated with the problem.

1. Packet is 60bytes with two bytes being HTTP data.
The section in sniffer looks like this:

HTTP -----Hyper Text Transfer Protocol ----

HTTP:
HTTP: Line 1:
HTTP:

Detail: HEX: 6C 6C 6C 6C Ascii: llll

Is this valid????

2. If Post requests HTTP/1.1 and Server replys with HTTP/1.1 100 continue.
Why would server send data under:

HTTP -----Hyper Text Transfer Protocol ----

HTTP:
HTTP: Line 1: HTTP/1.0 200 OK
HTTP: Line 2: Content-Type: application/vnd.ms-excel
HTTP: Line 3: Content-Length: 5009
HTTP:

Is this ok??

Number 1. above appears when the browser displays a blank page and we feel is associated with the TCP reset.

By disabling HTTP/1.1 at the client browser the symptom stops.

Any information appreciated......

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by Mr_Milo In reply to HTTP Protocol Questions

Point value changed by question poster.

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by Mr_Milo In reply to HTTP Protocol Questions

Point value changed by question poster.

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by Deadly Ernest In reply to HTTP Protocol Questions

From the information above it would appear that you are having some compatability problems with the HTTP between the machines.

Point one shows that the connection was NOT made and that it gave memory dump information (the detail stuff is the hexidecimal locators for the memory).

Point 2 shows that connection was made and that the server is using HTTP 1.0 protocol not HTTP 1.1
'HTTP:Line1:HTTP/1.0.200 OK' this showing HTTP 1.0.2 is working as that is what it is using not the HTTP/1.1.00 being requested.

If the client machine then insists on the HTTP/1.1.00 it will not accept connection from the HTTP/1.0.2 and thus an incompatibility error and memory dump as connection is dropped.

Since you have found that turning off HTTP/1.1 allows connection I would just do turn it off as a default setting in the client's browser and leave it that way.

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