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ip ro get problem

DISCUSSION Sandro Dentella 3 participants 4 messages Sep 15, 2004

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Sandro Dentella

author
#0 lore raw

Hi all,

I'm using ip route get to debug a routing probelm and I get:

    root@fw-euronet argo # ip route get 192.168.254.10 
    192.168.254.10 dev eth0  src 192.168.254.1 
	cache  mtu 1500 advmss 1460
    root@fw-euronet argo # ip route get 192.168.254.10 from 192.168.5.2
    RTNETLINK answers: Invalid argument

What does really mean "RTNETLINK answers: Invalid argument",

I get the same error w/

root@fw-euronet argo # ip route get 192.168.254.10 iif tun0 RTNETLINK answers: Invalid argument

My rules are:
root@fw-euronet argo # ip ru li
0: from all lookup local
30: from all iif tun0 lookup adsl
38: from 192.168.254.10 lookup hdsl
40: from 217.58.51.160/27 lookup hdsl
41: from 81.121.243.248/30 lookup adsl
52: from all iif eth0 lookup adsl
53: from all iif eth2 lookup adsl
32766: from all lookup main
32767: from all lookup default

where you can see that tun0, where 192.168.5.0/24 is, should look table adsl that is define this way:

    root@fw-euronet argo # ip ro ls table adsl
    81.121.243.248/30 dev eth3  scope link  src 81.121.243.250 
    217.58.51.160/27 dev eth1  scope link  src 217.58.51.162 
    192.168.5.0/24 dev tun0  scope link 
    192.168.1.0/24 dev eth2  scope link  src 192.168.1.1 
    192.168.254.0/24 dev eth0  scope link  src 192.168.254.1 
    default via 81.121.243.249 dev eth3

TYA
sandro
*:-)

Signature · 3 lines
Sandro Dentella  *:-)
e-mail: [email protected] 
http://www.tksql.org                    TkSQL Home page - My GPL work
#1 lore raw
Quoted 4 lines · Sandro Dentella

Hi all,

I'm using ip route get to debug a routing probelm and I get:

Quoted 8 lines
    root@fw-euronet argo # ip route get 192.168.254.10 
    192.168.254.10 dev eth0  src 192.168.254.1 
	cache  mtu 1500 advmss 1460
    root@fw-euronet argo # ip route get 192.168.254.10 from 192.168.5.2
    RTNETLINK answers: Invalid argument

What does really mean "RTNETLINK answers: Invalid argument",

means that the IP address 192.168.254.10 does not exist on this host.

Quoted 34 lines

I get the same error w/

root@fw-euronet argo # ip route get 192.168.254.10 iif tun0 RTNETLINK answers: Invalid argument

My rules are:
root@fw-euronet argo # ip ru li
0: from all lookup local
30: from all iif tun0 lookup adsl
38: from 192.168.254.10 lookup hdsl
40: from 217.58.51.160/27 lookup hdsl
41: from 81.121.243.248/30 lookup adsl
52: from all iif eth0 lookup adsl
53: from all iif eth2 lookup adsl
32766: from all lookup main
32767: from all lookup default

where you can see that tun0, where 192.168.5.0/24 is, should look table adsl that is define this way:

    root@fw-euronet argo # ip ro ls table adsl
    81.121.243.248/30 dev eth3  scope link  src 81.121.243.250 
    217.58.51.160/27 dev eth1  scope link  src 217.58.51.162 
    192.168.5.0/24 dev tun0  scope link 
    192.168.1.0/24 dev eth2  scope link  src 192.168.1.1 
    192.168.254.0/24 dev eth0  scope link  src 192.168.254.1 
    default via 81.121.243.249 dev eth3

TYA
sandro
*:-)

Signature · 1 line
Jason Opperisano <[email protected]>
#2 lore raw
In reply to Sandro Dentella
Quoted 4 lines · Sandro Dentella

Hi all,

I'm using ip route get to debug a routing probelm and I get:

Quoted 9 lines
    root@fw-euronet argo # ip route get 192.168.254.10
    192.168.254.10 dev eth0  src 192.168.254.1
	cache  mtu 1500 advmss 1460
    root@fw-euronet argo # ip route get 192.168.254.10 from 192.168.5.2
    RTNETLINK answers: Invalid argument

What does really mean "RTNETLINK answers: Invalid argument",

<< Snippage >>

Very good question -- and althought there might be someone here who could
answer this (and I too would like to know since I'm now mucking with iproute2 and a dual route system) .. But this question would best be asked on a LARTC mailing list :

subscribe here:
http://mailman.ds9a.nl/mailman/listinfo/lartc

archive here:
http://mailman.ds9a.nl/pipermail/lartc/

Good luck !

Alistair Tonner

author
#3 lore raw
Quoted 6 lines

<< Snippage >>

Very good question -- and althought there might be someone here who could
answer this (and I too would like to know since I'm now mucking with iproute2 and a dual route system) .. But this question would best be asked on a LARTC mailing list :

Sorry for that! I'm subscribed to both lists and I swapped the addresses

sandro
*;-)

Signature · 3 lines
Sandro Dentella  *:-)
e-mail: [email protected] 
http://www.tksql.org                    TkSQL Home page - My GPL work