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Delay in connectivity

ln_unix
Frequent Advisor

Delay in connectivity

Hello All,

I am facing a problem of network connectivity....As per my investigation all the network part is working fine....and system configuration is OK as well...and then also I am facing an issue...

DETAILS:-

-> having a c3000 workstation.
-> hpux 11iv1 installed
-> a PC
->connected directly with a cross cable(workstation <-----> PC)

Now, What happens is....


After booting,system is UP, but PING response is not coming for 15-20 minutes and after 15-20 minutes its giving me PING response as well as < prompt="">

So, Please help me to remove this delay in connectivity.

Follwing are some logs from my system:-

# netstat -nr
Routing tables
Destination Gateway Flags Refs Interface Pmtu
127.0.0.1 127.0.0.1 UH 0 lo0 4136
192.168.1.223 192.168.1.223 UH 0 lan0 4136
80.0.0.223 80.0.0.223 UH 0 snap0 4136
192.168.1.0 192.168.1.223 U 2 lan0 1500
80.0.0.0 80.0.0.223 U 2 snap0 1492
127.0.0.0 127.0.0.1 U 0 lo0 0


#lanscan -v
-------------------------------------------------------------------------------
Hardware Station Crd Hdw Net-Interface NM MAC HP-DLPI DLPI
Path Address In# State NamePPA ID Type Support Mjr#
10/0/12/0 0x001083F9A5E1 0 UP lan0 snap0 1 ETHER Yes 119

Extended Station LLC Encapsulation
Address Methods
0x001083F9A5E1 IEEE HPEXTIEEE SNAP ETHER NOVELL

Driver Specific Information
btlan
-------------------------------------------------------------------------------
# linkloop 0x001083F9A5E1
Link connectivity to LAN station: 0x001083F9A5E1
-- OK
# lanscan -v|more
-------------------------------------------------------------------------------
Hardware Station Crd Hdw Net-Interface NM MAC HP-DLPI DLPI
Path Address In# State NamePPA ID Type Support Mjr#
10/0/12/0 0x001083F9A5E1 0 UP lan0 snap0 1 ETHER Yes 119

Extended Station LLC Encapsulation
Address Methods
0x001083F9A5E1 IEEE HPEXTIEEE SNAP ETHER NOVELL

Driver Specific Information
btlan
-------------------------------------------------------------------------------


netconf
--------

IP_ADDRESS[1]=80.0.0.223
SUBNET_MASK[1]=255.0.0.0
INTERFACE_NAME[1]=snap0
BROADCAST_ADDRESS[1]=80.255.255.255
INTERFACE_STATE[1]=up


=================

Waiting for your replies....

Thanks in Advance.....

Best Regards,
LN






7 REPLIES
Anshumali
Esteemed Contributor

Re: Delay in connectivity

Need more information...Like you are pinging the workstation from the cross cable connected PC or from other machine on the network. I will focus less on the routing if you are connecting it through cross cable.
also, is there something in the /etc/rc.log which shows when network interfaces came up?
Dreams are not which you see while sleeping, Dreams are which doesnt allow you to sleep while you are chasing for them!!
ln_unix
Frequent Advisor

Re: Delay in connectivity

Hello Anshumali,

Thanks for the quick rely

I am trying to ping directly with cross cable(worstation <--> PC) ,or can say directly with PC.
and have not seen in rc.log,what type of messages will I need to check in this file.

Best Regards,
LN
Anshumali
Esteemed Contributor

Re: Delay in connectivity

Start checking along these lines:

Configure HP igelan Gigabit Ethernet interfaces
Output from "/sbin/rc2.d/S305hpigelan start":
======
This is just for possible clues. On Server, What is the status of network interfaces before they start to respond to ping? Is there any difference if you use IP instead of name from your PC to ping it?
Dreams are not which you see while sleeping, Dreams are which doesnt allow you to sleep while you are chasing for them!!
Deeos
Regular Advisor

Re: Delay in connectivity

hi ,


is there DNS configured?


check DNS file entry!

any fake entry will also cause such problem.





Regards
Deeos
Deepak
Bill Hassell
Honored Contributor

Re: Delay in connectivity

> 192.168.1.223

What is this address? Did you say that this is a two workstation network with a simple crossover cable?

> 80.0.0.223, subnet-mask 255.0.0.0

Is there a reason to use a class A address with room for 16 million IP addresses? Why not use 192 through 223 as your first octet as in 200.0.0.223 with 255.255.255.0 as your subnet mask?

> netconf...

What else is in netconf, specifically routing information? With a simple crossover cable, you don't any routes.


Bill Hassell, sysadmin
Andrew Rutter
Honored Contributor

Re: Delay in connectivity

hi,

is that the only details in the netconf file?

what about the network that Bill queried?
192.168.....

Also what does the /etc/hosts file contain?have you added the network address of the PC, which is what?

have you updated this? or how did you configure the network? with commandline or sam?

and has the network deamon been stopped and restarted since modifications

Andy
ln_unix
Frequent Advisor

Re: Delay in connectivity

Hi All,

Thanks for your replies,

netconf is having following entries:-

netconf
--------

IP_ADDRESS[1]=80.0.0.223
SUBNET_MASK[1]=255.0.0.0
INTERFACE_NAME[1]=snap0
BROADCAST_ADDRESS[1]=80.255.255.255
INTERFACE_STATE[1]=up