Friday, December 1, 2017

DTLS negotiaition issue Anyconnect

Dear Networkers

I have users in my LAN that are using anyconnect to connect to customer. They are suffering slow downloads, after mi investigation I noticed that it is negotiating TLS instead of DTLS. There is no problem with negotiating DTLS outside of my network. Im not blocking any ports for anyconnect destination. On ANyconnect logs from users I found "SOCKETTRANSPORT_ERROR_WRITE DTLS" and "A DTLS Alert was sent by the client during a write operation. Severity: warning Description: close notify" I have no access to customer ASA to check his settings. Am I missing something?



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