Cisco ASA site to site

I have a site to site VPN set up but am experiencing dropouts. I will paste below some of the log entries from site 2. Keepalives are left as default.

Group =, IP =, Received DPD sequence number 0x210df0e3 in R_U_THERE_ACK, expected 0x210df0e4

Group =, IP =, IKE lost contact with remote peer, deleting connection (keepalive type: DPD)

IPSEC: An inbound LAN-to-LAN SA (SPI= 0xA78A69E8) between and (user= has been deleted.

IPSEC: An outbound LAN-to-LAN SA (SPI= 0xCDB659DA) between and has been deleted.

Group =, Username =, IP =, Session disconnected. Session Type: IPsec, Duration: 0h:00m:50s, Bytes xmt: 3818, Bytes rcv: 5045, Reason: Lost Service

One of the sites 79.x has a slow internet connection which I think may be to blame here. Any suggestions gratefully received.

Thanks. J.
Who is Participating?
arnoldConnect With a Mentor Commented:
Well it seems as though it is a queuing setup since one side received a delayed packet.
What is the upstream on the ADSL. ADSL is often asynchronous i.e. you could have 4meg down and 768k up.
Is the slow connection location experiences bandwidth saturation?
Do you have QoS policy setup to prioritize resources/bandwidth for the VPN?
What is your interface queuing policy queue or FIFO with packets being dropped when bandwidth usage is exceeded?
jerryhattAuthor Commented:
The connection at one end is an ADSL 4 meg connection. The other end is a 100meg leased line.
The ADSL connection is used solely for the transfer between servers so there is no other traffic. I guess it could be saturation as it is only a narrow pipe.

I have not set up IQP or FIFO so it would be default (Cisco ASA 5505 both ends).

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.