User`s manual

OnCell G3111/G3151/G3211/G3251 Series User’s Manual Using the Web Console
6-12
cellular routers offer the GuaranLink function, which ensures your wireless connection will be
there whenever you need it.
Background
1. “Register to network” and “Establish PPP with ISP” are two steps for establishing connection
with the ISP.
2. If GuaranLink determines that the OnCell cannot establish connection with the ISP, it reboots
the OnCell in order to allow the OnCell to retry the connection once rebooted.
Common Settings
 GuaranLink (default=Disable): Enable this setting to start the GuaranLink function.
 Register to network timeout (min) (default=10): This setting specifoes how long
GuaranLink should wait to register to the network before the OnCell reboots itself.
 PPP retry count (default=3 mins) This setting specifies how many times GuaranLink should
retry to establish PPP with the ISP before the OnCell reboots itself.
 DNS/Ping remote host 1 and DNS/Ping remote host 2: This setting is for “Cellular
connection alive check” and “Packet-level connection check.” It specifies the target host
of the DNS lookup and Ping action. It could be either a domain name or an IP address.
GuaranLink Check Settings
 ISP initial connection check (default=Disable): This function is to ensure that the OnCell can
establish connection with an ISP after it reboots.
 Cellular connection alive check (default=Disable): Some ISPs may disable the connection if
there is no data transmitted in a specific period of time, depending on the ISP’s settings. This
function ensures that the cellular connection will be kept alive even if no data is transmitted for
a period of time by performing the check action of DNS lookup or ping action of DNS/Ping
remote host 1 or DNS/Ping remote host 2. If the check action fails after the retry count number
specified in “Cellular connection alive check retry count”, the OnCell will re-establish a
connection with the ISP.
 Cellular connection alive check interval (min) (default=5 min): This setting specifies the
idle time before GuaranLink performs the check action.
 Cellular connection alive check retry count (default=3 sec): This setting specifies the
number of attempts to reach the remote target(s) before the OnCell re-establishes a connection.
 Packet-level connection check (default=Disable): This function checks if the cellular
network can be accessed by performing the check action of lookup DNS or ping action of
DNS/Ping remote host 1 or DNS/Ping remote host 2. If the check action fails after the retry
count number specified in “Packet-level connection check retry count.” the OnCell will
re-establish a connection with ISP.
 Packet-level connection check action (default=DNS and PING): This setting specifies
whether the check action is successful when both of the DNS lookup and the ping action
succeed, or if it is successful even if only one of them succeed.
 Packet-level connection check interval (min) (default=5 min): This setting specifies the
interval between two check actions.
 Packet-level connection check retry count (default=3 sec): This setting specifies the number
of attempts to reach the remote target(s) before the OnCell re-establishes a connection.