andrew_deackes_
Dec 16, 2008Nimbostratus
GTM LDNS Persistence Not Adequate
Hi,
we are using our GTM's to distribute users connections to a SSL RAS solution. We have it set to be Round Robin between the two datacentres where the RAS devices are located. We also have LDNS persistence enabled. When testing name resolution this seems to work fine and for the majority of users it's caused no problems.
However, a few users have a problem and we believe it maybe due to their ISP's using some form of load balanced DNS. The user connects initially to site A, their PC is security checked and then authenticated. Then when they launch the full VPN tunnel the DNS resolves to site B (presumably because the ISP's DNS has load balanced to a diffeerent DNS server) and the VPN connection fails.
Has anyone run into anything similar? Any suggestions for a way round this?
Currently we've reverted to GA with all users hitting one datacentre but we'd really like to load balance across both sites as user numbers increase.
Thanks
Andy