Cisco Application Networking :: CSS 11500 Responds For Any Port
Dec 21, 2011
We have multiple CSS 11500 clusters. We have found that on all of them, if you try to open a session on any port to an IP address on the backend of the CSS, the CSS will complete the SYN-ACK-ACK session with the client. This happens regardless of whether there is something on that IP address or not.
Coming from any IP, if I try to telnet to ANY IP on the 10.2.2.0 subnet (whether or not there is an actual server on that IP) on any port (whether or not that port is open or not), the CSS will complete the initial connection. I have verified this using telnet to numerous ports and viewing the transaction in a packet capture.
Is there any way to shut this off? This is causing some licensing issues for our security folks that use a vulnerability scanner licensed on number of IP addresses.
I need to configure a keepalive that check an url in a server (http in port 9500 not in port 80) and check the port 443 in the same server. If any of them not response . the service should go down.
I recently "inherited" a CSS 11503 - I've only used ACEs before - and I want to get HTTP keepalives working.To start, I created a test service:
lb-1# show run service sunbird-http-7025-test !************************** SERVICE ************************** service sunbird-http-7025-test port 7025 ip address 141.211.229.168
I can access our CSSS 11500 through telnet and a serial connection. When I try the web interface, I get:
CVDM Startup Error CVDM has not been granted the necessary privileges to startup successfully, or another unknown error occurred during startup. Please close all involved browser windows and try again by granting all requested privileges.
I have two CSS 11500 series.In just a few months i will have ready a DRS (Disaster Recovery Site), where i will have 2 more servers to add to the environment.
We have a CSS 11503 with the following partial config [code] it is clear that the server at 10.10.10.222 is active. What we cannot understand is why web site is inaccessible thru load balancer using http://10.10.10.1.
I have a question regarding CSS loadbalancer. Let's say there are 2 vlans in CSS:
1. Vlan 10: 10.1.1.0/24 as external interface, interface where most of the clients are coming from.
2. Vlan 20: 10.1.2.0/24 for real server vlan.
Virtual IP 10.1.1.10 is created in CSS on behalf of two real servers (10.1.2.11 & .12) in Vlan 20. Client from Vlan 10 can http access to 10.1.1.10 successfully.
In Vlan 20 there's also few clients which need to access servers via virtual IP. Vlan 20 Client PC (10.1.2.101) can ping 10.1.1.10, but can't access 10.1.1.10 http service.
Is there any way for CSS to forward service request coming from Server vlan to be send back to the same segment?
i don't know why cu need this feature, he want stickiness based on source ip and source port. Does CSS 11500 support stickiness based on source IP and source port?or is there any other method to support stickness based on source ip and sourceport?
My customer wants each ACE4710 (of a highly available cluster) to have its own, dedicated port for management purposes.
According to documentation, IP addressing can be applied to VLAN interfaces, so in order to satisfy the requirement, I should make one port belong to an "access VLAN X", and then apply IP addressing to the corresponding "interface VLAN X". This should satisfy my customer´s requirement in an indirect way.
But... ¿ Can´t I just configure IP address on one of the 4 ethernet ports in order to save the work of building the aforementioned VLAN? I am asking this since I do not have access to a real box in order to verify.
I'm attempting to redirect SSL from the base site to a different page on the same SSL site. I want to redirect https://10.4.16.54/* to[URL] . If I enter[URL], site loads, but if I enter simply https://10.4.16.54, it times out. The ssl_sharepoint service is my ssl_proxy_list.
I want to deploy a high availability solution for web servers in two data centers. In the primary data center I have deployed a group of web server and I want two deploy additional servers in a secondary data center for disaster recovery and high availability. Reviewing the documentation, looks like the GSS4492 is the solution for my company needs but I am not sure if I have to implement just the GSS or if I need a ACE4700 integrated with the GSS?.
The below is the display that I get on the screen when i boot the device.There are two error's one is when the daughter card is found and device give us login access after which it reboot’s. The second is stated below (this is a screen copy of the error)
INIT: version 2.85 booting/mnt/cf/TN-CONFIG on /TN-CONFIG type ext3 (rw,sync,loop=/dev/loop0)/mnt/cf/TN-CERTKEY-STORAGE on /TN-CERTKEY-STORAGE type ext3 (rw,sync,loop=/dev/loop1)/mnt/cf/TN-LOGFILE on /TN-LOGFILE type ext3 (rw,sync,loop=/dev/loop2)/mnt/cf/TN-HOME on /TN-HOME type ext3 (rw,sync,loop=/dev/loop3)/mnt/cf/TN-COREFILE on /TN-COREFILE type ext3 (rw,sync,loop=/dev/loop4)insmod: error inserting [Code]...
I know that CSRs cannot be generated with multiple names, but if the SAN is added after the cert is ordered from Geo Trust, Veri sign, etc. can the CSS support using the cert?
I'm working on a small scale Cisco WAAS deployment. I want to know if it's possible to use the entry level Cisco WAVE-294-K9 as Central Manager.Also about licensing, does this appliance model come with the enterprise level license
Do you know if it is possible in ACE 4710 appliance to configure a SIP TLS ?The SIP probe we have in the configuration guide it is only for clear text. for Lync 2013 we need to establish first a TLS session and then within it, send an SIP request..IS it possible in any version? I tried also to configure a HTTPS probe but it fails as it sends a GET which the Lync SIP server doesn't understand.
I want to use the ACE blade in CAT6500 to loadbalancing SYSLOG events towards (SIEM) collectors. Servers and network devices will sent there syslog messages to different collectors after being loadbalanced by ACE. I was just wondering, since a lot of clients are going to sent there complete syslog events to the VIP and thus introducing a high connection rate. (+/- 200.000 CPS) According to the specs, the ACE blade has a limitation of 325.000 connection per second. I suppose this is a limitation at device level. (not on a per context basis, and does that include both TCP and UDP packets?) Could the UDP BOOST feature might come in handy allowing very high rate UDP syslog packet loadbalancing?
We are evaluating the one-arm design for the ACE 4700 and need some clarifications:
1. Are there any limitations in the one-arm design and the SSL offloading
2. Can the ACE be configured with an IN and an OUT vlan to the router
CLIENT -> Router -> ACE IN -> ACE OUT -> Router -> Server Vlan
so that the SSL and the clear text traffic is in a separate Vlan?
3. In some sample configuration i saw SNAT configuration on the ACE to modify the client IP. This i assume is for instructing the return traffic from the server to go through ACE? Using SNAT we eliminate the requirement for NAT or PBR on the router? Will i still be able to insert the client IP address after the SSL offload?
One of our ACE-20's crash recently with little info as to why - fortunately it was the FT standby module so service wasn't impacted but obviously keen to determine the cause of the crash, and potential resolution.
Running A2 (3.5).
last boot reason: NP 1 Failed : NP Core Reset - Cause Unknown,There is nothing obvious from the switch perspective:
Apr 17 14:52:35.775 bst: SP: The PC in slot 9 is shutting down. Please wait ... Apr 17 14:52:45.780 bst: SP: PC shutdown completed for module 9 510497: Apr 17 14:52:55.781 bst: %C6KPWR-SP-4-DISABLED: power to module in slot 9 set off (Reset) 510498: Apr 17 14:57:58.277 bst: %DIAG-SP-6-RUN_MINIMUM: Module 9: Running Minimal Diagnostics... [Code]...
I need to setup new ACE 4710 device , after referring to "Establishing a Console Connection on the ACE" i had managed to set up initial console connection. During installtion i had configured vlan (default vlan 1000) , interface ip adess& subnet mask.
Post initial config i understand i should be able to open' Device Manager GUI Login Window' but it is not opening.I also need inputs on setting 4710 for the telnet connection
We have a CSS11503 that is currently being used to accept incoming HTTPS and SSH connections on a specific VIP and then PAT those client connections. I understand that it also PATs the server initiated connections. [code]
Any info about Exchange 2013 and ACE SLB functions. I know they changed to RPC over HTTPS on exch side and few other items changed as well. Any feedback from a production deployment.
ACE A2(3.4). Is it possible to set a rate-limit connections per sec from any source IP. For example, if a client is trying to GET a web page 10 time per sec I will send a reset or drop that connection.
How do I apply the connection parameter map in a configuration like this to the service policy int827? Do I need to define the traffic? Can I specify only one source destination flow to apply the set tcp half-closed TCP normalization against?
policy-map type loadbalance first-match wss-1100-l7slb class class-default sticky-serverfarm sticky-srcip-1100 policy-map type loadbalance first-match wss-1101-l7slb class class-default sticky-serverfarm sticky-srcip-1101
For server load balancing, does the ACE4710 support custom protocols? We'll be using HTTP for server health monitoring, and to determine if a server is up or down. But the client/server application is custom, and includes a lot of non-standard ports. Can the server VIP handle generic TCP connections? For example client1 connects to the VIP on http, but then later client1 switches to using tcp842 (a custom protocol, not http).
What is the equivalent of the command "show flash" in IOS for the CSS11503 as I would like to view available flash space on the CSS11500 series load balancers?
I am configuring a load balancer from cisco, a ACE 4710.Load blancing is completely new to me, and i am unexpereinced in this field. It has to be configured for a customer that want to load balance HTTP and RTSP traffic over 4 application servers (Back-end),I searched alot on google for possible solutions, and got RTSP in some way to work, but http wont work says my customer.
