topic Re: Unable to delete route in Operating System - HP-UX

Unable to delete route

Clay Jones_2 — Tue, 27 Apr 2004 09:24:23 GMT

I have recently brought down two aliases (lan1:1 and lan1:2) on an HPUX 11.11 sysytem, and host routes still appear in the routing table:

> netstat -rn
Routing tables
Destination Gateway Flags Refs Interface Pmtu
127.0.0.1 127.0.0.1 UH 0 lo0 4136
172.16.10.22 172.16.10.22 UH 0 lan1 4136
172.16.10.54 172.16.10.54 UH 0 lan1:2 4136
172.16.10.55 172.16.10.55 UH 0 lan1:1 4136
default 172.16.0.2 UG 0 lan1 0

When I try to remove them via the "route" command, I get the following errors:

> route delete 172.16.10.54 172.16.10.54
delete host 172.16.10.54: gateway 172.16.10.54: no such route

> route delete host 172.16.10.54 172.16.10.54
delete host 172.16.10.54: gateway 172.16.10.54: no such route

> route delete net 172.16.10.54 172.16.10.54
delete net 172.16.10.54: gateway 172.16.10.54: no such route

> route delete 172.16.10.54 255.255.255.255 172.16.10.54
delete host 172.16.10.54: gateway 255.255.255.255: no such route

> route delete 172.16.10.54 255.255.0.0 172.16.10.54
delete host 172.16.10.54: gateway 255.255.0.0: no such route

I've tried a few others as well. Anyone know how to remove these routes?

Re: Unable to delete route

Hazem Mahmoud_3 — Tue, 27 Apr 2004 09:28:37 GMT

Try removing them from the netconf file (/etc/rc.config.d/netconf).
Then restart the network services.

-Hazem

Re: Unable to delete route

Clay Jones_2 — Tue, 27 Apr 2004 09:31:05 GMT

Thanks for your reply. These aliases were never in the netconf file. Can you elaborate on "restart the network services"? Thanks again.

Re: Unable to delete route

Hazem Mahmoud_3 — Tue, 27 Apr 2004 09:36:00 GMT

inetd -c

-Hazem

Re: Unable to delete route

Ashwani Kashyap — Tue, 27 Apr 2004 10:12:46 GMT

Does this work :
route delete 172,16.10.54 172.16.10.22

Re: Unable to delete route

Clay Jones_2 — Tue, 27 Apr 2004 10:17:08 GMT

> route delete 172.16.10.54 172.16.10.22
delete host 172.16.10.54: gateway 172.16.10.22: no such route

Alas, no.

Re: Unable to delete route

Clay Jones_2 — Tue, 27 Apr 2004 10:24:48 GMT

inetd -c had no effect either. Routes remain....

Re: Unable to delete route

Ashwani Kashyap — Tue, 27 Apr 2004 10:45:29 GMT

Can you try bringing down the interface by doing :

ifconfig lan1:1 down
ifconfig lan1:2 down

and then try to delete the route .

Re: Unable to delete route

Sanjay_6 — Tue, 27 Apr 2004 10:47:47 GMT

Hi Clay,

you can flush the routing table by using
route -f
Make sure you have a connection to the server through console if you loose connection doing this.
Do a "netstat -rn" to check and see the current routing table. If you don't see the default gateway over there,

use
route add default ip_add_of_def_gw 1

now telnet out of that system to another and see if it works. Do a netstat to check the new routing table.

Hope this helps.

Regds

Re: Unable to delete route

Victor Fridyev — Tue, 27 Apr 2004 11:05:22 GMT

Hi,

Try to add to the command parameter subnet:
route delete host 172.16.10.54 subnet 255.255.255.0

or may be you have to use ffffff00 format

HTH

Re: Unable to delete route

Clay Jones_2 — Tue, 27 Apr 2004 11:07:20 GMT

Thanks everyone. Both interfaces are down, and route -f only clears routes to remote hosts. These routes are "UH" and used to point to the local host.

BTW, route -f was tried by the previous person working on this issue and it essentially removed the default route and nothing else.

Re: Unable to delete route

Clay Jones_2 — Tue, 27 Apr 2004 11:11:26 GMT

> route delete host 172.16.10.54 subnet ffff0000
subnet: bad value

> route delete host 172.16.10.54 subnet 0xffff0000
subnet: bad value

Re: Unable to delete route

Ashwani Kashyap — Tue, 27 Apr 2004 11:15:12 GMT

If you assign an IP address of 0.0.0.0 to lan1:1 and lan1:2 , does it remove it .

Re: Unable to delete route

Clay Jones_2 — Tue, 27 Apr 2004 11:17:00 GMT

> ifconfig lan1:2 0.0.0.0
nydhora1@/etc/rc.config.d> ifconfig lan1:2
ifconfig: no such interface
nydhora1@/etc/rc.config.d> netstat -rn
Routing tables
Destination Gateway Flags Refs Interface Pmtu
127.0.0.1 127.0.0.1 UH 0 lo0 4136
172.16.10.22 172.16.10.22 UH 0 lan1 4136
172.16.10.55 172.16.10.55 UH 0 lan1:1 4136
172.30.18.100 172.16.0.198 UGH 0 lan1 0
172.16.0.0 172.16.10.22 U 2 lan1 1500
default 172.16.0.2 UG 0 lan1 0

Success! That is one messed up way to control your network. Or is it just me?

Re: Unable to delete route

Jeff Schussele — Tue, 27 Apr 2004 11:20:13 GMT

Hi Clay,

First thing to do is run the netstat command in verbose more

netstat -rvn

Then enter rhe route delete command to match the output - probably something like

route delete host 172.16.10.54 netmask 255.255.255.0 172.16.10.54

You must match the route exactly. So if the netmask is not 255.255.255.0 then enter it as the netstat -rvn command displays it.

HTH,
Jeff

Re: Unable to delete route

Clay Jones_2 — Tue, 27 Apr 2004 11:21:55 GMT

Jeff,

Thanks for your reply, but I had tried that. I had tried every combo imaginable. Only setting the interface address to 0.0.0.0 did it.

Re: Unable to delete route

Ashwani Kashyap — Tue, 27 Apr 2004 11:25:25 GMT

This is most probably a unplumbing/plumbing issue that might be resolved in a patch but I am not sure .

Re: Unable to delete route

Gary Gunderson — Tue, 29 Jun 2004 14:56:33 GMT

This is a little late in the response here. I've just run into a similar problem.

netstat -nvr returns:
10.10.32.0/255.255.255.0 172.16.254.253 UG

route delete net 10.10.32.0 netmask 255.255.255.0 172.16.254.253

returns a syntax error

route delete net 10.10.32.0 netmask 0xffffff00 172.16.254.253

is succesful!

Hope this helps some other poor soul.

Re: Unable to delete route

Coolmar — Fri, 30 Mar 2007 08:39:12 GMT

Yes, the power is on for that device. I wonder, could the card be faulty? HP sent us the wrong OS..11.11 rather than 11.23, so we had to use the older 11.23 DVDs. Do you know where I can find the latest drivers online?