01-03-2011 08:17 PM
We are currently doing an outbound proxy through the ACE using an external IP as an rserver.
Our internal server makes a request to the VIP on port 82 which than makes the request to the external server on 443 (rserver)
We are getting resets on this.
Our question is regarding the conn table.
The inital connection gets established to the VIP of the ACE and from the VIP to the external server
However the conn table than seems to switch from the external IP (rserver) directly to the the inside host-the vip no longer in the table
I understand that on L7 load balancing the VIP will set up the TCP connection, than cut through the connection from the
inside address to the external IP, however we are not doing this.
Here is the connection table we see
External IP's changed
172.20.212.6=internal server (client) making outbound cal
172.20.120,19=VIP
70.70.70.70=external server (rserver) IP changed
conn-id np dir proto vlan source destination state
----------+--+---+-----+----+---------------------+---------------------+------+
1484085 1 in TCP 151 172.20.212.6:35866 172.20.120.19:82 ESTAB
1484307 1 out TCP 150 70.70.70.70:443 172.20.212.6:35866 ESTAB
Then switches to a direct connection:
1360573 1 out TCP 151 172.20.212.6:38495 70.70.70.70:443 ESTAB
1360577 1 in TCP 150 70.70.70.70:443 172.20.212.6:38496 ESTAB
1360640 1 out TCP 151 172.20.212.6:38496 70.70.70.70:443 ESTAB
1364243 1 in TCP 150 70.70.70.70:443 172.20.212.6:43138 ESTAB
My question is this a proper flow?
Under other connections we see the VIP stay in the connection table for the duration of the connection
01-06-2011 12:46 PM
Richard,
This definately don't look correct. Can you show me the configuration you are using for this VIP including the interfaces.
Thanks,
Chris
01-07-2011 01:37 PM
Hi Chris-
We opened a TAC case and we were informed that this is normal behavior since we dont have NAT'ing on the interface
OUr capture shows that after the TCP connection is established withe the ACE VIP and the rserver
and SSL conversation than begins with the real host and real server directly.
My question is...since this is happening directly...is the ACE no longer active in the conversation
I was under the impresion that the ACE only unproxies itself and "splices" the real host and real server L7
behavior...redirectong on uri..etc
policy-map type loadbalance first-match CLASS-TEST1-POLICY
class class-default
serverfarm -TEST1
ssl-proxy client TEST1-SSL
If this is normal behavior...is the ACE now just a pass through?
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