Perhaps someone smarter than me would be able to shed some light on this situation:
ASA 5505, 9.1.4, BT Fibre 80/20, ECI modem, PPPoE dialout on the outside interface
Everything works fine (well, I've had to lower tcpmss to 1300 as I've been getting the PMTU-D errors when trying to browse thru VPN tunnel), except I've noticed that traffic usage per interface on the outside interface shows doubled values of what's really being pushed thru it.
clear interface outside, clear interface inside and :
received (in 7.480 secs):
25006 packets 1002424 bytes
3343 pkts/sec 134013 bytes/sec
transmitted (in 7.480 secs):
51058 packets 66144398 bytes
6825 pkts/sec 8842833 bytes/sec
received (in 5.010 secs):
67904 packets 88375838 bytes
13553 pkts/sec 17639887 bytes/sec
transmitted (in 5.010 secs):
16756 packets 835423 bytes
3344 pkts/sec 166751 bytes/sec
The figure on the outside interface shows 134.58 Mbps !
The inside interface shows correctly 67.46 Mbps.
Consequetnly the ASDM shows exactly the same thing on the graphs.
Previously ASA has been used with VM Cable modem on 120Mbps connection, and it was showing the correct values (also worked fine with default tcpmss of 1380)
Ideas, anyone ?