Hi,everyone,
I’ve installed a basic QNX4.25 on my PC104. Now I want it to provide TCP/IP
service as a client(hostname: node2), when I type ‘ping node2’ on other
computer, it works ok! But when I type ping command on this computer as
following: #ping node1
It showes me:
ping: unknown protocol icmp
In fact, I’ve copy all the licenses and TCP/IP services utilities(such as
Socket,Socklet and its configuration files etc.). I don’t known the
practical errors, who can tell me the right install metold of TCP/IP on
PC104.
Thank you!!!
You will get this if /etc/protocols is missing. Ping obviously does a lookup
to find the number of the protocol to put into the header of the packet it
sends out.
This is what mine looks like:
Internet (IP) protocols
@(#)protocols 5.1 (Berkeley) 4/17/89
ip 0 IP # internet protocol, pseudo protocol number
icmp 1 ICMP # internet control message protocol
igmp 2 IGMP # internet group multicast protocol
ggp 3 GGP # gateway-gateway protocol
tcp 6 TCP # transmission control protocol
egp 8 EGP # exterior gateway protocol
igp 9 IGP # interior gateway protocol
pup 12 PUP # PARC universal packet protocol
udp 17 UDP # user datagram protocol
hmp 20 HMP # host monitoring protocol
xns-idp 22 XNS-IDP # Xerox NS IDP
rdp 27 RDP # “reliable datagram” protocol
Hi,everyone,
I’ve installed a basic QNX4.25 on my PC104. Now I want it to provide
TCP/IP
service as a client(hostname: node2), when I type ‘ping node2’ on other
computer, it works ok! But when I type ping command on this computer as
following: #ping node1
It showes me:
ping: unknown protocol icmp
In fact, I’ve copy all the licenses and TCP/IP services utilities(such as
Socket,Socklet and its configuration files etc.). I don’t known the
practical errors, who can tell me the right install metold of TCP/IP on
PC104.
Thank you!!!