Re: Perplexing Ultra 60 networking issue

In article <Pine.SOL.4.64.0608111012001.708@marrakesh>, Rich Teer <rich.teer@xxxxxxxxxxxxxx> wrote:

root@ultra60248# ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
hme0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet 192.168.0.6 netmask ffffff00 broadcast 192.168.0.255
ether 8:0:20:93:91:dc
rge0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
inet 192.168.0.5 netmask ffffff00 broadcast 192.168.0.255
ether 0:14:6c:81:e4:f4

Offhand, I would suspect either of two things:

1. /etc/inet/ipnodes needs to be adjusted -- I seem to recall
that takes precedence over /etc/hosts in Solaris 10... and it's possible
to have some impressively baffling issues if /etc/hosts and
/etc/inet/ipnodes differs in certain ways.

2. Problem may be due to hme0 and rge0 being in the same IP
subnet. It is possible that when you ping rge0 from the other host, the
ping packets enters via rge0 and then exits via hme0, due to IP routing
rules selecting hme0 as the default local subnet exit interface. Would
certainly explain why no response when hme0 cable is unplugged.

Of the two, I'm more inclined to think it's the latter as a cause.

-Dan
.

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