H792x 3G/4G Router User Manual
5.3 Application program configuration
Based on years of customer experience for different applications, besides SNMP, DDNS,
H792x 3G/4G router ha s developed many functions for wireless network equipment, such
as ICMP check, interface flow check function, M2M terminal management function, task
management function and waking on demand function.
5.3.1 ICMP check
There is fake link (can get IP after dialing, but cannot link to destination address). Usually
LCP is used to avoid this. Besides LCP, H792x 3G/4G router can use another more reliable
checking way ICMP which check the link by PING. When abnormal link is checked, the
preset action will be executed to recover the link and systems quickly. Initially ICMP is to
check wireless link, and now it can be used to check VPN link and supports simultaneous
check in different rules. It supports maximum 10 ICMP check rules.
Step 1 Log-on WEB GUI of H792x 3G/4G router.
Step 2 Click “applications > ICMP Check”.
Open “ICMP Check” tab.
Figure 5-10 ICMP Check tab
Step 3 “Add”, “Modify”, “Delete”, “Enable” “Disable” the function of “ICMP Check”.
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