Is it possible to use new AnyConnect v4.x into old ASA version? 5510 and 5520 and so on, NON -X version.I cannot find a clear answer into client documentation.Thanks 

hii have a catalyst 3550. i hev also a gbic i have put the gbic in a frre slot and on boot i have00:00:34: %GBIC_SECURITY-4-VN_DATA_CRC_ERROR: GBIC interface Gi0/1 has bad crc00:00:34: %PM-4-ERR_DISABLE: gbic-invalid error detected on Gi0/1, puttingG...