Manual Chapter :
Using Via Headers to Acquire Information About Intermediate Routers
Applies To:
Show Versions
BIG-IP AAM
- 15.1.8, 15.1.7, 15.1.6, 15.1.5, 15.1.4, 15.1.3, 15.1.2, 15.1.1, 15.1.0, 15.0.1, 15.0.0
BIG-IP APM
- 16.1.3, 16.1.2, 16.1.1, 16.1.0, 16.0.1, 16.0.0, 15.1.8, 15.1.7, 15.1.6, 15.1.5, 15.1.4, 15.1.3, 15.1.2, 15.1.1, 15.1.0, 15.0.1, 15.0.0
BIG-IP Analytics
- 16.1.3, 16.1.2, 16.1.1, 16.1.0, 16.0.1, 16.0.0, 15.1.8, 15.1.7, 15.1.6, 15.1.5, 15.1.4, 15.1.3, 15.1.2, 15.1.1, 15.1.0, 15.0.1, 15.0.0
BIG-IP Link Controller
- 16.1.3, 16.1.2, 16.1.1, 16.1.0, 16.0.1, 16.0.0, 15.1.8, 15.1.7, 15.1.6, 15.1.5, 15.1.4, 15.1.3, 15.1.2, 15.1.1, 15.1.0, 15.0.1, 15.0.0
BIG-IP LTM
- 16.1.3, 16.1.2, 16.1.1, 16.1.0, 16.0.1, 16.0.0, 15.1.8, 15.1.7, 15.1.6, 15.1.5, 15.1.4, 15.1.3, 15.1.2, 15.1.1, 15.1.0, 15.0.1, 15.0.0
BIG-IP PEM
- 16.1.3, 16.1.2, 16.1.1, 16.1.0, 16.0.1, 16.0.0, 15.1.8, 15.1.7, 15.1.6, 15.1.5, 15.1.4, 15.1.3, 15.1.2, 15.1.1, 15.1.0, 15.0.1, 15.0.0
BIG-IP AFM
- 16.1.3, 16.1.2, 16.1.1, 16.1.0, 16.0.1, 16.0.0, 15.1.8, 15.1.7, 15.1.6, 15.1.5, 15.1.4, 15.1.3, 15.1.2, 15.1.1, 15.1.0, 15.0.1, 15.0.0
BIG-IP DNS
- 16.1.3, 16.1.2, 16.1.1, 16.1.0, 16.0.1, 16.0.0, 15.1.8, 15.1.7, 15.1.6, 15.1.5, 15.1.4, 15.1.3, 15.1.2, 15.1.1, 15.1.0, 15.0.1, 15.0.0
BIG-IP ASM
- 16.1.3, 16.1.2, 16.1.1, 16.1.0, 16.0.1, 16.0.0, 15.1.8, 15.1.7, 15.1.6, 15.1.5, 15.1.4, 15.1.3, 15.1.2, 15.1.1, 15.1.0, 15.0.1, 15.0.0
Using Via Headers to Acquire Information About Intermediate Routers
Overview: Using Via headers
Via headers provide useful information about intermediate routers that can be used in network analysis and troubleshooting.
Task summary for identifying intermediate information with Via headers
Perform these tasks to identify intermediate information with Via headers.
Identifying information about intermediate proxies with Via headers
The BIG-IP system can include Via headers (configured in an
HTTP profile) in a request, a response, or both, to identify information, such as
protocols and names, for intermediate proxies that forward messages.
- On the Main tab, click .The HTTP profile list screen opens.
- Click the name of a user-defined profile.
- Select theCustomcheck box.
- In theSend Proxy Via Header In Requestlist, do one of the following:
- Select thePreserveoption to include theViaheader in the client request to the origin web server.
- Select theAppendoption, and then type a string in theSend Proxy Via Header Host Namefield, which is appended as a comment when sending aViaheader in a request to an origin web server.
- In theSend Proxy Via Header In Responselist, do one of the following:
- Select thePreserveoption to include theViaheader in the client response to the client.
- Select theAppendoption, and then type a string in theSend Proxy Via Header Host Namefield, which is appended as a comment when sending aViaheader in a response to a client.
- ClickFinished.
The BIG-IP system is configured to use Via headers to identify protocols and
intermediate proxies that forward messages.
Removing Via headers from requests and responses
Via headers are configured in an HTTP profile for requests or responses.
You can remove Via headers from requests and responses if you no longer require
them to identify information about intermediate proxies.
- On the Main tab, click .The HTTP profile list screen opens.
- Click the name of a user-defined profile.
- Select theCustomcheck box.
- In theSend Proxy Via Header In Requestlist, selectRemove.
- In theSend Proxy Via Header In Responselist, selectRemove.
- ClickFinished.
The BIG-IP system removes Via headers, as configured, for requests and
responses.
