I have an old MP-Ras Unix system. I have setup netowkring but am unable to ping any local network pcs or the default gateway. If i use the arp -a command I receive the correct mac address for all connected pcs but I cannot ping anything except the local address. Any help would be appreciative.
netstat -rn
Routing tables
Destination Gateway Flags Refs Use Interface
default 192.168.1.1 UGS 0 0 en2
127.0.0.1 127.0.0.1 UH 2 8 lo0
192.168.1.0 192.168.1.129 UC 0 0 en2
192.168.1.129 127.0.0.1 UGHS 0 0 lo0
224.0.0.0 192.168.1.129 UCS 0 0 en2
arp -a
? (192.168.1.1) at 0:18:1:fc:41:a2 (802.3)
? (192.168.1.13) at (incomplete) (802.3)
mcpserver (192.168.1.130) at 0:11:85:7a:58:b9 (802.3)
? (192.168.1.255) at (incomplete) (802.3)
? (224.0.0.2) at (incomplete) (802.3)
That was my thought but there is no firewall on the unix pc and all other pcs on the network can ping each other so I ruled out firewall on pcs and or router
If this is not the case it might be that your TCP/IP ICMP stack settings discard ICMP packets.
Try to ping yourself from the host itself ( not the loop back address ) and from some other host and see what happens.
I can ping myself from the host but I cannot ping myself from any other host.
---------- Post updated at 11:31 PM ---------- Previous update was at 11:24 AM ----------
When I telnet into my router and do an arp -a command the router shows my unix ip with incomplete. It is not able to resolve mac address which I believe is the reason why I can't ping any other pcs on my network. Any ideas
it might be due to some bug in router software . You can clear the mac enrty from the router database and check if its getting updated correctly after that .
yes,you're right,that's the reason why you can't ping your gateway
you can telnet into your router and add a arp map in hand,just input your ip with the unix pc's en2 mac addres,then i think it will work