What to submit when asking for layer4/load balancer services.

This document will help with what to put in the request when asking for layer4 services.

Things to keep in mind

Currently only specific subnets can be load balanced with the layer4 switch. If your server is not on one of these subnets it may have to move to a load balanced subnet, depending on your service needs.

Load balanced subnets as of 6/3/2024 are:

Subnet SLB Health Check IP Load Balancer Description
144.92.197.128/25 144.92.197.131 Citrix/Netscaler Portal Production Public(Note: VIPs are also behind firewall)
144.92.8.0/24 144.92.8.6 Citrix/Netscaler Portal Production Private
144.92.170.0/25 144.92.170.2 Citrix/Netscaler (ITE) Test Public(Note: VIPs are also behind firewall)
144.92.7.0/24 144.92.7.5 Citrix/Netscaler (ITE) Test Private
128.104.1.128/25 128.104.1.194 Citrix/Netscaler General purpose server load balancing - Production network(Note: VIPs are also behind firewall)
128.104.236.0/23 128.104.236.4 Citrix/Netscaler Learn @ UW (Production)
144.92.127.0/25 144.92.127.4 Citrix/Netscaler Learn @ UW (Beta)
144.92.119.128/25 144.92.119.134 Citrix/Netscaler Learn @ UW (WebDAV Beta)
144.92.49.192/26 144.92.49.198 Citrix/Netscaler General purpose server load balancing - Test network (Note: VIPs are also behind firewall)
144.92.9.0/24 144.92.9.7 Citrix/Netscaler General purpose server load balancing - Production network (Note: VIPs are also behind firewall)
144.92.128.0/25 144.92.128.6 Citrix/Netscaler Restricted Data - Test Subnet (Note: VIPs are also behind firewall)
144.92.201.128/25 144.92.201.134 Citrix/Netscaler Restricted Data 2 - Production Subnet (Note: VIPs are also behind firewall)
128.104.155.0/24 128.104.155.6 Citrix/Netscaler AIMS VM network (Note: VIPs are also behind firewall)
128.104.46.0/24 128.104.46.6 Citrix/Netscaler LTG/LIRA - Production Subnet (Note: VIPs are also behind firewall)
128.104.31.64/26 128.104.31.70 Citrix/Netscaler Restricted Data 3 - Production Subnet (Note: VIPs are also behind firewall)
128.104.22.0/24 128.104.22.6 Citrix/Netscaler General purpose server load balancing - Production network (Note: VIPs are also behind firewall)
144.92.104.0/24 144.92.104.6 Citrix/Netscaler General purpose server load balancing - Production network (Note: VIPs are also behind firewall)
144.92.26.96/27 144.92.26.105 Citrix/Netscaler General purpose server load balancing - Production network (Note: VIPs are also behind firewall)
128.104.54.0/24 128.104.54.6 Citrix/Netscaler DoIT Shared Web Hosting Network 3 (Note: VIPs are also behind firewall)
128.104.53.160/27 128.104.53.190 Citrix/Netscaler OCIS Logging (Note: VIPs are also behind firewall)
128.104.50.0/24
2607:f388:2:1::/64		 128.104.50.6
2607:f388:2:1::6		 Citrix/Netscaler CCI Shared L4 Services (Note: VIPs are also behind firewall)
128.104.221.0/25 128.104.221.6 Citrix/Netscaler CCI Shared Restricted Data L4 Services (Note: VIPs are also behind firewall)
128.104.82.0/25 128.104.82.6 Citrix/Netscaler DoIT Data Center Prod Restricted Data 3 (Note: VIPs are also behind firewall)
10.130.165.0/24 10.130.165.6 Citrix/Netscaler OCIS Logging (Note: VIPs are also behind firewall)
10.128.127.0/24 10.128.127.6 Citrix/Netscaler DoIT Shared Web Hosting RFC1918 Network
10.130.171.128/25 10.130.171.168 Citrix/Netscaler DoIT VOIP
144.92.5.128/25 144.92.5.134 Citrix/Netscaler AIMS VDI Access Points
10.128.112.160/27 10.128.112.166 Citrix/Netscaler Oracle Identity Manager private production network
144.92.22.128/25 144.92.22.134 Citrix/Netscaler LIMITED-HOSTING-CSSC_PRD
128.104.80.0/23 128.104.80.6 Citrix/Netscaler webhosting cluster (public) V.Ponelis and J.Simon
144.92.164.176/28 144.92.164.180 Citrix/Netscaler SIS Production Public IP network, client side of layer4, private side of firewall
10.134.192.64/26 10.134.192.68 Citrix/Netscaler SIS Production RFC1918 IP network, client side of layer4, private side of firewall
128.104.136.128/25 128.104.136.132 Citrix/Netscaler UW Systems - PeopleSoft as a Service (PSaaS) - Production Environment
10.130.214.0/24 10.130.214.6 Citrix/Netscaler Cybersecurity syslog and logging service - private network
128.104.136.64/26 128.104.136.68 Citrix/Netscaler IBM Cloud Object Storage - External
128.104.52.128/26 128.104.52.134 Citrix/Netscaler WID - DISCOVERY-EQUIPMENT
144.92.227.48/28 144.92.227.52 Citrix/Netscaler Exadata Cloud at Customer(C@C) Layer4 VIP Network (1 of 2)
10.128.222.192/26 10.128.222.198 Citrix/Netscaler EXADATA-BACKUP-NET
128.104.144.16/28 128.104.144.20 Citrix/Netscaler Exadata Cloud at Customer (C@C) Layer4 VIP Network (2 of 2)
128.104.144.128/25 128.104.144.134 Citrix/Netscaler Firewalled general purpose platform subnet in Computer Science
144.92.29.224/27 144.92.29.228 Citrix/Netscaler Office Of CyberSecurity - CyberArk Public IPs
10.134.94.192/26 10.134.94.196 Citrix/Netscaler Office Of CyberSecurity - CyberArk Component Servers
10.134.95.0/26 10.134.95.4 Citrix/Netscaler Office Of CyberSecurity - CyberArk Vault Servers
2607:f388:2:1::/64 2607:f388:2:1::6 Citrix/Netscaler CCI Shared Virtual Machine Network

Request Examples/Templates that can be used in WiscIT cases: 

New

Example #1 - New VIP
Please forward this case to Network Services-OpEng.
I need the following Load Balancer(L4) configuration created:
VIP = <144.92.170.11> (SOME-SERVICE.WISC.EDU),  Port: <TCP443 -or- UDP443>;
- If SSL, are we terminating the SSL on the L4 or passing it through to the server?
  - If Terminating SSL on the L4, the certificate and key can be attached to the case as a password protected PKCS12 and NS will reach out when we need the password. 
  - Intermediate and Root certs can be directly attached to the case.
Metric = <LEAST CONNECTIONS -or- ROUNDROBIN -or- SRC IP/SRC PORT>; Others
Persistence = <YES -or- NO>;  If Yes, what Type?  <SOURCE IP -or- SRCIPDESTIP -or- SSL SESSION ID -or- COOKIE INSERT>; Others
Health Check = <HTTP -or- HTTPS -or- TCPS -or- TCP>; Others
Server = <144.92.170.22 (server1.doit.wisc.edu)>, Port: <8443>
Server = <144.92.170.23 (server2.doit.wisc.edu)>, Port: <8443>
Server = <144.92.170.24 (server3.doit.wisc.edu)>, Port: <8443>

Backup Servers(Optional)
- Server = <144.92.170.254 (server-bkp.doit.wisc.edu)>, Port: <8443>
Notes:  This can be configured like the existing VIP <144.92.170.10:443>.
Date/Time when this can be done: <ANYTIME>
Thank you,
<NAME HERE>
<EMAIL HERE>
<PHONE# HERE>

Example #2 - New Port for an existing VIP
Please forward this case to Network Services-OpEng.
I need the following Load Balancer(L4) configuration created for existing VIP <144.92.170.11>:
VIP = <144.92.170.11> (SOME-SERVICE.WISC.EDU),  Port: <TCP8443 -or- UDP8443>;
- If SSL, are we terminating the SSL on the L4 or passing it through to the server?
  - If Terminating SSL on the L4, the certificate and key can be attached to the case as a password protected PKCS12 and NS will reach out when we need the password. 
  - Intermediate and Root certs can be directly attached to the case.
Metric = <LEAST CONNECTIONS -or- ROUNDROBIN -or- SRC IP/SRC PORT>; Others
Persistence = <YES -or- NO>;  If Yes, what Type?  <SOURCE IP -or- SRCIPDESTIP -or- SSL SESSION ID -or- COOKIE INSERT>; Others
Health Check = <HTTP -or- HTTPS -or- TCPS -or- TCP>; Others
Server = <144.92.170.22 (server1.doit.wisc.edu)>, Port: <8443>
Server = <144.92.170.23 (server2.doit.wisc.edu)>, Port: <8443>
Server = <144.92.170.24 (server3.doit.wisc.edu)>, Port: <8443>

Backup Servers(Optional)
- Server = <144.92.170.254 (server-bkp.doit.wisc.edu)>, Port: <8443>
Notes:  This can be configured like the existing VIP <144.92.170.10:8443>.
Date/Time when this can be done: <ANYTIME>
Thank you,
<NAME HERE>
<EMAIL HERE>
<PHONE# HERE>

Add Server(s) to an existing VIP

Example #1
Please forward this case to Network Services-OpEng.
Please add the following server to existing VIP <144.92.170.10:443>
Server = <144.92.170.22 (server1.doit.wisc.edu)>, Port: <443>
Date/Time when this can be done: <ANYTIME>
Thank you,
<NAME HERE>
<EMAIL HERE>
<PHONE# HERE>

Change

Example #1 - Change existing VIP configuration
Please forward this case to Network Services-OpEng.
Please change existing VIP <144.92.170.10:443> from >SOURCIP> persistence to <COOKIE INSERT>.
Date/Time when this can be done: <ANYTIME>
Thank you,
<NAME HERE>
<EMAIL HERE>
<PHONE# HERE>
Example #2 - Certificate Update
Please forward this case to Network Services-OpEng.
Please update the certificate for <SOME-SERVICE.WISC.EDU> (144.92.170.11).
- The certificate and key can be attached to the case as a password protected PKCS12 and NS will reach out when we need the password.
- Intermediate and Root certs can be directly attached to the case.
Date/Time when this can be done: <ANYTIME>
Current Certificate expires on: <DATE HERE>
Thank you,
<NAME HERE>
<EMAIL HERE>
<PHONE# HERE>

Delete

Example #1
Please forward this case to Network Services-OpEng.
Please delete the following server from all associated VIPs.
Server = <144.92.170.22 (server1.doit.wisc.edu)>
Date/Time when this can be done: <ANYTIME>
Thank you,
<NAME HERE>
<EMAIL HERE>
<PHONE# HERE>
  

Citrix/Netscaler Metrics and Health Checking

Layer4 Status Post Configuration

https://stats.net.wisc.edu/layer4/


Keywords:
l4 layer4 load balancing subnets portal test VIP persistence server ITE hash metric roundrobin adc 
Doc ID:
4246
Owned by:
Scott B. in Network Services
Created:
2005-12-06
Updated:
2024-06-04
Sites:
DCTeam, DoIT Staff, Network Services, Systems & Network Control Center, Systems Engineering