Cisco Application :: Hairpinning On CSS 11503 When Using Source Groups?
Jun 26, 2011
I'm not sure if my terminology is correct when using hairpinning but i was wondering if there is any special config needed when you try to access a content rule VIP from a server that's configured as a member of a source group on the same CSS?
So say i have a content rule with a VIP 20.20.20.20 and i also have two servers 192.168.1.1 and 192.168.1.2 that are part of a source group with VIP of 20.20.20.21. My problem at the moment is if from the servers 192.168.1.x i try to ping the other VIP 20.20.20.20 that's configured on the same CSS then it doesn't work and ping fails. The same happens with HTTP traffic to the 20.20.20.20 VIP.
I would have thought that the NAT of the source group would happen before the routing so the 192.168.1.x IP's would be natted to 20.20.20.21 and then passed over for routing where the CSS would see that the VIP 20.20.20.20 is local and it would send it on it's way.
I thought it might be ACL related but i increased the verbosity of acl logging and couldn't see anything in the logs.The source group works fine on it's own and from the CSS itself i can ping the 20.20.20.20 VIP fine. It just seems that from the source group members i can't ping the VIP.
content My_Group add service blade1 add service blade2 add service blade3 vip address 1.2.3.4 advanced-balance arrowpoint-cookie
[code]...
So I have 3 blades which are proxy servers and user go first to an MS ISA server then the VIP of the CSS and then the rules processes them give them a blade and chuck them out onto the Internet.
I want to leave the above rule, but remove one blade create an additional content group with that blade and have it process requests for a particular site so, I would create the following
content My_Group2 add service blade3 vip address 1.2.3.4 advanced-balance arrowpoint-cookie
[code]...
So my question is can I do that having the same VIP's etc so if a request comes in and it matches www.thewebsite.com that the second content rule matches it 'better' and therefore processes it or would it still be caught by the "/*" content group. I don't want to create more VIPS as I have a real ache getting firewall rules done.
I have a number of web sites that are currently being load balanced by CSS 11503s runninng 8x code. I was recently requested to configure HTTP --> HTTPS redirects on the CSS for every site. In the past, I have only configured the redirects for sites that had a requirement. Now it appears that the server teams want all content encrypted.
1) What impact will this have on the CPU? 2) What impact will this have on Memory utilization? 3) Is there a maximum nubmer on redirects? 4) Are there other things I should be concerned about?
i have two CSS-11503 in redundant mode running 8.20 code. We had an incident in our network where a layer 2 loop caused some high traffic through the CSS' and had to shutdown some network gear(including the CSS) to clear the problem. When the CSS' were powered back up, the SSL service was suspended, why this would occur? There rest of the config appeared normal. I am the only person on these boxes, the configs were written, and I have never had a reason to suspend the ssl service.
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?
We now have a new requirement . We are replacing existing pair of CSS with ACE 4710 appliances. The problem here is that I can see from the configuration that some SSL certificate installed in CSS .Is it possible to transfer the existing SSL certificate from the 11503 to the ACE? Or, do we need to generate a new key pair and CSR on the ACE? Is there any document available to know the steps for the same.
We have several pairs of CSS11501 and 11503 in our network.This issue affects only one pair of CSS11503 in one of our data centres. [code] We use vrrp in one-armed mode for load balancing and they units have performed great for a number of years. We're obviously going to be migrating to ACE ... but not just yet.We have started to experience a problem with replicating the configurations between two CSS11503 in a pair.When running the commit-VipRedundConfig, it starts off happily enough, though slowly.Ending with "working" and the spinning cursor, even after 1 hour the script hasn't completed.We noted on the backup CSS that the APP configuration disappears during the process and I can't remember if this is normal behaviour.
Re-adding the app session configuration seems to interrupt the process, and when checking the configuration on the backup CSS approximately half of it is missing. Everything after the first owner is gone.
1. Configuration is too large, or just large enough to make the commit script take too long for realistic service. 2. Software bug? 3. Combination of both. 4. From now on manually add config to both CSS's and maintain it by process management.
I only have configured load balancing on apache with a very simple setup. I have to deploy 2 applications on my clients environment that run inside jboss. One of these applications needs session to be sticky to work properly. The other does not.
In apache I can configure is the sticky parameter is true or false, based on the url, like /appA/* is sticky and /appB/* is not sticky. Can I do that in a CSS 11503? My client insists that it is impossible. That the CSS is only ip based.
I copied the configuration below from the manual: owner arrowpoint # content ruleWapSticky
Am trying to verify performance figures for ACE 4710 as EOL replacement for a CSS 11503 Am sure that the ACE 4710 smokes the CSS but have to complete the due diligence
Pulling figures from data sheets, release notes etc.. I have only come up with the followingIs there any further figures available for the ACE 4710 to fill in the blanks in table?
I have a single cisco 11503 load balancer.There is a single Banner student information system which is load balanced on it with Virtual ip 10.3.20.101 which is working fine without any issues .I am now trying to add an Oracle ERP application with virtual IP 10.3.20.230 and physical ips 10.3.19.22 and 10.3.19.23 all on port 8003.When I just make the group ERP-Apps-Grp active , the vitual ip address 10.3.20.230 is pingable , but when I make the the content Erp_IAT active it stops pinging. [code]
what is the OID for See the hit status of the spefic VIP and RIP coming under the VIP .apeart from this CSS box having any module to moniter the hit status or VIP's and RIP's
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 have a CSS 11503 with a basic content rule for TCP 10000 going to a few backend servers. I was looking into the default timeout values for flows and when testing using telnet the flow didn't terminate as expected?
For example, i have no 'timeout multiplier' specified in the config and when i look at the output of 'show flow-timeout default' it tells me the default 16 seconds timeout is in effect for *. With that in mind, i telnet to the content rule vip on TCP 10000 and on the backend server using wireshark i can see the TCP threeway handshake. With no data passing i'd expect the CSS to terminate this flow after 16 seconds.. yet it takes exactly 128 seconds before wireshark shows the RST and the flow is terminated. 128 being 8 times the default 16 second flow timeout.
If i try to force the connection to close early by specifiying 'flow-timeout-multiplier 2' in the content rule, or even a multiplier of 40, it still waits 128 seconds to close the telnet connection.
I have already raised this discussion on "LAN, Switching and Routing" group. But I guess this is the right group for my queries. So I am sending my queries in this group again.
We are using CSS 11503 with one 16FE line card. We have connected 3 servers with redundant link. So FE1-2 in Server1, FE 3-4 in Server2 and FE5-6 in Server3. Our system team has configured APA in their servers as they are using HP-Ux.
1) Do we need to do any configuration at line card.
2) Do we need to do ether-channel at loadbalancer end. if yes, can you share me any cisco doc on how to do it.
We have a pair of CSS 11503 installed in our DC. Stickiness is configured for one of the application since long back and was working pretty fine till last couple of months. Since last two months, we observed that CSS is not distributing sessions the way it suppose to be. Mostly, it forwards the session to same server even though request is coming from different sources. Once we refresh the sessions manually, it starts working fine. We have to do this exercise manually every alternate day.
I have 2 pair of 11501 switches and 1 pair of 11503 switches on 3 sites(LA, China, Taiwan).Each site has a pair of 1105x switch running as redundancy between them and is a standalone which will not interact with others.Recently a series of interfaces(ports) down happened to every active 1150x switches without any reason and log.Especially today, it happened to active switches at 5:39 AM meanwhile on 3 sites.
I have a Cisco ACE with a server farm "intranet" with real servers rsrv1 and rsrv2 (round robin) and i have two sites A (IP Address A) and B (IP Address B) in the WAN. I want to that Site A conect to ACE 4710 via VIP, but this connection will be to srv1 and Site B conect to ACE 4710 via VIP, but this connection will be to srv2.
I'm trying to design a CSS configuration that allows servers in the same vlan to be the source and destination of load-balanced traffic. My thought is to add two new vlans, one for the VIPs and one for the servers, then NAT the source IPs going from the LB to the servers.
Is this the right way to do it?I've never NATted using CSSs, so I wanted to verify what I'm thinking.Our current config trunks the vlans -
I've configured the ACE4710 to bring the logging to a syslog server! Here's the configuration
[...] logging enable logging fastpath
[Code]....
I saw to log with connection on the syslog server but It would be interesting to know the "source ip address" and my question is : It may be possible to configure for the logging a kind of "transparent pass through"?
I hav ACE 4710, I am trying to configure a policy in which when specific Client tries to access the specific Destination. ACE should not send the traffic to load balancing. It should directly send to the next Hop.
I configred the below but didnt able to achieve my object.
access-list source_IP line 8 extended permit ip host 192.168.146.123 host 198.xx.xx.2 class-map match-all CM_BYPASS_SOURCE 2 match access-list source_IP
policy-map type loadbalance http first-match PM_L7_BYPASS_SOURCE class class-default forward
But I am not able to reach to destination. MY source traffic is still diverting to the Load balancing server. I dont want it to redirect to LB server
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.
I have a requirement to select a farm based on source IP address. I tried creating a match all class-map that matches on the virtual-address and source address but I get this message.LB01/Admin(config-cmap)# match source-address x.x.x.75 255.255.255.255 Error: Only one match virtual-address is allowed in a match-all class-map and it cannot mix with any other match type To me this is the only place where it makes sense to set the source match criteria.
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?
I have a requirement to bypass some specific traffic (with particular source to specific internet destination) in ACE 4710.
All the webtraffic (http and https) is configured to loadbalance to my proxies , i need to configure some specific traffic with source and destiantion to internet to byepass from this loadbalancing and directly got to outside interface .
Im having a (from google-fu) seemingly unique issue with load balancing. So for background, I am running the ACE 4710 device in "on a stick" mode, so I am using NAT and all that good stuff. I am also utilizing class maps and host header matching so I can save on IP space. [code]
Basically, as soon as I add that ACL_CLASS_beta.mainsite.com class map, all I get back from the ACE is RST packets and it comes back with an L7 LB Policy Miss.
It SEEMS like it should work, but it doesnt seem to like matching on those source addresses at all.
I created some User Defined Groups in LMS 4.1, now I want to apply certain fault notification groups to Event Sets.
Unfortunately the Groups I configured are not in the Group Selector of the Fault Notification Group: Admin > Network > Notification and Action Settings > Fault Notification Group
I have set this up on pre 8.3 code and 8.3 code as well. I have the following configured on the ASA, but it is not working and I am not seeing the ASA trying to NAT the VPN pool IP address that the client gets assigned.
