62
This function will test the physical connection between SX-
GATE, the DSL modem and the access concentrator at your ISP.
Even if the test is successful, the network connection may fail.
10.2.3
Tools
The configuration options in this menu are structured by topic. You can change between
the different screens by clicking on the tabs at the top.
10.2.3-A IPv4 Ping........................................................................... 62
10.2.3-B IPv6 Ping........................................................................... 63
10.2.3-C IPv4 Traceroute................................................................ 64
10.2.3-D IPv6 Traceroute................................................................ 64
10.2.3-E DNS query......................................................................... 65
10.2.3-F WoL................................................................................... 66
10.2.3-A
IPv4 Ping
To test network connections the "ping" command is very helpful. It sends a small IP
packet (ICMP echo-request) to a specific address. If a packet of type "ICMP echo-reply"
is returned, the IP connections to this address is obviously ok.
Send ping to
Here you can specify where to send the "ping". You can specify either an IP address or
a DNS name. If you enter a DNS name, the name server of SX-GATE must be running
and name resolution must be working.
Source IP
When trying to ping through a VPN tunnel, it can be necessary to use a specific source
IP.
Packet size
Here you can select the packet size (plus 8 byte ICMP header). In particular via VPN
it can happen, that large packets (e.g. of size 1500 byte) fail to be transmitted. In this
case the packets are sent via a system which discards fragmented IP packets.
