Solaris 10: Unable to route to Internet

Question

Folks,
I installed Solaris 10 on Sun Ultra 30. Server is up & everything looks good, except I am not able to connect to Internet from Ultra30.
Problem is not in Name Resolution, but in routing to external network. At least it so seems.
At my home, it's a typical cable modem & Netgear router setup. I reserved the IP (192.168.1.3) for the MAC address of Ultra30 @ my router and used that IP address on Ultra30 setup.
I am able to reach to this node from the other nodes, connected to same router, by telnet/ftp etc. Those nodes are able to go to Internet without any problem. I am able to ping from Ultra30 to the Dynamic IP address of other nodes on the same network.
Here is the output of various commands.
# ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
     inet 127.0.0.1 netmask ff000000
hme0: flags=1104843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,ROUTER,IPv4> mtu 1500 index 2
     inet 192.168.1.3 netmask ffffff00 broadcast 192.168.1.255
     ether 8:0:20:9a:e5:ba
# netstat -rn
Routing Table: IPv4
Destination Gateway Flags Ref Use Interface
192.168.1.0 192.168.1.3 U 1 2 hme0
224.0.0.0 192.168.1.3 U 1 0 hme0
default 192.168.1.1 UG 1 0 hme0
127.0.0.1 127.0.0.1 UH 2 30 lo0
# cat /etc/defaultrouter
192.168.1.1
# cat /etc/resolv.conf
nameserver 192.168.1.1
# ping 192.168.1.1 ---> Router's IP address
192.168.1.1 is alive
# ping 192.168.1.2 ---> PC on same network
192.168.1.2 is alive
# ping -v -s -R 75.75.xx.yyy ----> Dynamic address of the above PC
PING 75.75.xx.yyy: 56 data bytes
64 bytes from c-75-75-xx-yyy.hsd1.va.comcast.net (75.75.xx.yyy): icmp_seq=0. time=1.50 ms
IP options: <record route> c-75-75-xx-yyy.hsd1.va.comcast.net (75.75.xx.yyy), Ultra30 (192.168.1.3), (End of record)
----75.75.xx.yyy PING Statistics----
8 packets transmitted, 8 packets received, 0% packet loss
round-trip (ms) min/avg/max/stddev = 0.872/1.09/2.39/0.53
# traceroute www.sun.com
traceroute to www.sun.com (72.5.124.61), 30 hops max, 40 byte packets
1 192.168.1.1 (192.168.1.1) 1.181 ms 0.823 ms 0.711 ms
2 * * *
3 * * *
4 * * *
5 *^C#
# nslookup www.sun.com
Server: 192.168.1.1
Address: 192.168.1.1#53
Non-authoritative answer:
Name: www.sun.com
Address: 72.5.124.61
# ping -v -s -R 72.5.124.61 ---> Ip address of www.sun.com
PING 72.5.124.61: 56 data bytes
^C
----72.5.124.61 PING Statistics----
19 packets transmitted, 0 packets received, 100% packet loss
# routeadm
Configuration Current Current
Option Configuration System State
IPv4 forwarding disabled disabled
IPv4 routing default (disabled) disabled
IPv4 routing daemon "/usr/sbin/in.routed"
IPv4 routing daemon args ""
IPv4 routing daemon stop "kill -TERM `cat /var/tmp/in.routed.pid`"
I tried with forwarding & routing enabled also. But no change.
Any help is appreciated.
-- skvvsk

Answer 1

I have a similar problem. In my case, the issue is in the resolv.conf file which is setup with the ISP router address (192.168.1.3) by the Solaris installation procudure.
# cat /etc/resolv.conf
192.168.1.3
However, the routing by DNS does not work with this. So I edit the resolv.conf file to have this:
# cat /etc/resolv.conf
nameserver 192.168.1.3
The entry name the address of the primary DNS.
Of course, this assuming that you have already edit the nsswitch.conf
Do a check:
# more /etc/nsswitch.conf | grep hosts
# “hosts:” and “services:” in this file are used only if the
hosts: files dns
If you only see "hosts: files" in the last line, edit the file and add " dns" to that line.