Ipv6 Tftp - 3Com 4210 9-Port Configuration Manual

Figure 2-1 Traceroute process
Device A
Hop Limit=1
Hop Limit exceeded
Hop Limit exceeded
As Figure 2-1 shows, the traceroute process is as follows:
The source sends an IP datagram with the Hop Limit of 1.
If the first hop device receiving the datagram reads the Hop Limit of 1, it will discard the packet and
return an ICMP timeout error message. Thus, the source can get the first device's address in the
route.
The source sends a datagram with the Hop Limit of 2 and the second hop device returns an ICMP
timeout error message. The source gets the second device's address in the route.
This process continues until the datagram reaches the destination host. As there is no application
using the UDP port, the destination returns a "port unreachable" ICMP error message.
The source receives the "port unreachable" ICMP error message and understands that the packet
has reached the destination, and thus determines the route of the packet from source to
destination.
Table 2-2 Traceroute IPv6
To do...
Traceroute IPv6

IPv6 TFTP

IPv6 supports TFTP (Trivial File Transfer Protocol). As a client, the device can download files from or
upload files to a TFTP server. For details about TFTP, see FTP-SFTP-TFTP.
Configuration preparation
Enable TFTP on the TFTP server and specify the path to download or upload files. For specific
operations, refer to TFTP server configuration specifications.
IPv6 TFTP configuration
You can use the commands listed in
TFTP server.
Device B Device C
Hop Limit=2
Hop Limit=n
UDP port unreachable
Use the command...
tracert ipv6 [ -f first-ttl | -m max-ttl | -p
port | -q packet-num | -w timeout ]*
remote-system
Table 2-3
Device D
Required
Available in any view
to download files from a TFTP server or upload files to a
2-2
Remarks