TTL expired

[Sritharan]

Hi,

my problem is

Reply from *.*.*.*. : TTL expired in transit.

What does TTL expired in transit means what should I do to overcome this problem ??

[T G Manikandan]

Hello,
I
/*
TTL: Time To Live. It is an integer value between 0 and 255. Each time a Router fowards an IP Packet, the TTL value in the IP Packet is decremented by one. When TTL gets to zero, the Router discards the IP Packet and an ICMP 'TTL Expired in transit' message is sent back to the sending IP Address. This mechanism prevents an IP Packet from being routed around the Internet forever, if for some reason there is a routing loop that would just send the packet around in circles.
*/

For example, when the TTL field of an IP Packet reaches zero, a Router will send an ICMP 'TTL expired in transit' message back to the sending IP Address.

[T G Manikandan · Accepted solution]

Just check whether you could reach the remote server by using the traceroute from your server.
The TTL expired may be due to a network link down or the IP packet not travelling beyond a certain point.By using traceroute you can find the route of the IP packet to its destination
you can discover the path that the packets are traveling and where the path ends or loops back on itself.

Thanks