SSL Offloading for specific IPs or range of IPs
Current flow is as below
Client -> F5 LTM (SSL Proxying) -> On premise Application Servers (TLS Offloading).
Certificates that do TLS offloading has F5 LTM DNS as CN/SAN.
For a migration of my on premise application stack to cloud, I need to achieve below two cases.
Client -> F5 LTM (SSL offloading for specific client IPs & Reencrypt TLS) -> New Stack cloud Application
Client -> F5 LTM (SSL Proxying) -> On premise Application Servers (TLS Offloading).
I have went through Bypass ssl offloading to certain IPs - DevCentral (f5.com) & SSL Offloading using iRules - DevCentral (f5.com). But not the exact case. Would wanted to confirm with experts here in thr forum please. Can someone kindly shed some light & a small example please?
Something like this maybe (where offload_ips is a data-group with ip host and ip/mask as specified)
when CLIENT_ACCEPTED priority 500 { if {[class match -- [IP::client_addr] equals offload_ips]} { SSL::enable pool new_stack_cloud_application } else { SSL::disable pool on_premise_applications_servers } }
JRahm, I beg to differ and offer a different solution. Not every problem requires an iRule to be solved. 🙂
I'd rather create two virtual servers, one with pool_A and SSL Bridging configured and another one with pool_B and SSL Passthrough, and make use of K14800: Order of precedence for virtual server matching.Order Destination Source Port 1 (host address) (network address) (port) 2 (host address) * (port) For the source you can use an Address List as described in this Manual article: Configuring Multiple IP Addresses and Service Ports for a Virtual Server. This would replace the datagroup for matching the source IP address(es).
KR
Daniel