-- Exhibit -

-- Exhibit --
Refer to the exhibit.
A server administrator notices that one server is intermittently NOT being sent any HTTP requests. The server logs display no issues. The LTM Specialist notices log entries stating the node (172.16.20.1) status cycling between down and up. The pool associated with the virtual server (10.10.1.100) has a custom HTTP monitor applied.
Which tcpdump filter will help trace the monitor?

-- Exhibit -

-- Exhibit -
Refer to the exhibit.
A user is unable to access a secure application via a virtual server.
What is the cause of the issue?

An LTM Specialist is troubleshooting an issue with a new virtual server. When connecting through the virtual server, clients receive the message "Unable to connect" in the browser, although connections directly to the pool member show the application is functioning correctly. The LTM configuration is:
ltm virtual /Common/vs_https {
destination /Common/10.10.1.110:443
ip-protocol udp
mask 255.255.255.255
pool /Common/pool_https
profiles {
/Common/udp { }
}
translate-address enabled
translate-port enabled
vlans-disabled
}
ltm pool /Common/pool_https {
members {
/Common/172.16.20.1:443 {
address 172.16.20.1
}
}
}
How should the LTM Specialist resolve this issue?

A client is attempting to log in to a web application that requires authentication. The following HTTP headers are sent by the client:
GET /owa/ HTTP/1.1
Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ
User-Agent: curl/7.26.0
Host: 10.0.0.14
Accept: */*
Accept-EncodinG. gzip,deflate
The web server is responding with the following HTTP headers:
HTTP/1.1 401 Unauthorized
Content-TypE. text/html
Server: Microsoft-IIS/7.5
WWW-AuthenticatE. NTLM
DatE. Wed, 16 Aug 1977 19:12:31 GMT
Content-LengtH. 1293
The client has checked the login credentials and believes the correct details are being entered.
What is the reason the destination web server is sending an HTTP 401 response?

What does the following iRule do?
when CLIENT_ACCEPTED {
if { [matchclass [IP::client_addr] equals WebClient1-Whitelist1] }{
#log local0. "Valid client IP: [IP::client_addr] - forwarding traffic"
#Pool WebClient1
} else {
log local0. "Invalid client IP: [IP::client_addr] - discarding"
discard
}
}