Be sure to CC: the list on these responses.  Someone else may have
ideas.

Your results below are indeed of concern.

What you need to do is have two terminals open on either machine.  One
for ping'ing, one for watching tcpdump(8) on.  You want to look for ARP
"who-as" and "is at" packets on either side.

Process of elimination:

Q: On the same hardware this problem doesn't occur with an older
version, correct?

Q: Can you eliminate the router/switch combo as a variable by using a
cross-over cable, temporarily?

~BAS

On Sun, 2005-10-09 at 11:09, Bdrawyah wrote:
> On Thu Oct  6  1:22 , 'Brian A. Seklecki' <[EMAIL PROTECTED]> sent:
> 
> >Something strange going on in your network if your clients aren't ARP'ing 
> >each other.
> >
> 
> Sorry to trouble you again but I have been experimenting with arp -an and it 
> seems to me that after 
> boot up both 192.168.0.5 and 192.168.0.7 can only see the router 192.168.0.1.
> When I ping from 192.168.0.7 to 0.1 arp -an sees only 0.1 but when I ping to 
> 0.5 and then arp -an I see 
> 0.5 correctly as well. 
> Isn't so successful pinging from 0.5 to 0.7 though; output from 0.5 below.
> Does this suggest anything to you?
> Thanks,
> Bruce
> 
> 501: $ arp -an
> ? (192.168.0.1) at 00:0f:b5:16:dd:b6 on rl0 [ethernet]
> [EMAIL PROTECTED]  /usr/home/bruceh
> 502: $ ping 192.168.0.1
> PING 192.168.0.1 (192.168.0.1): 56 data bytes
> 64 bytes from 192.168.0.1: icmp_seq=0 ttl=255 time=0.865 ms
> 64 bytes from 192.168.0.1: icmp_seq=1 ttl=255 time=0.771 ms
> 64 bytes from 192.168.0.1: icmp_seq=2 ttl=255 time=0.768 ms
> ^C
> --- 192.168.0.1 ping statistics ---
> 3 packets transmitted, 3 packets received, 0% packet loss
> round-trip min/avg/max/stddev = 0.768/0.801/0.865/0.045 ms
> [EMAIL PROTECTED]  /usr/home/bruceh
> 503: $ arp -an
> ? (192.168.0.1) at 00:0f:b5:16:dd:b6 on rl0 [ethernet]
> [EMAIL PROTECTED]  /usr/home/bruceh
> 504: $ ping 192.168.0.7
> PING 192.168.0.7 (192.168.0.7): 56 data bytes
> ping: sendto: Host is down
> ping: sendto: Host is down
> ^C
> --- 192.168.0.7 ping statistics ---
> 8 packets transmitted, 0 packets received, 100% packet loss
> [EMAIL PROTECTED]  /usr/home/bruceh
> 505: $ arp -an
> ? (192.168.0.1) at 00:0f:b5:16:dd:b6 on rl0 [ethernet]
> ? (192.168.0.7) at (incomplete) on rl0 [ethernet]
> 
> 

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