Re: [mpls-linux-general] why there are no patches for 1.958?

[Chris R. <Chr...@nr...>]

James

The problem seems to be the way the kernel handles /32 address in a 
routing table.  Namely it doesnt.  That is I fixed the dummy0 interface 
routing problem by simply assigning it a /30 bit mask, aka a network 
address.

ifcfg-dummy0 = /30 bit mask
LER_1(dummy0)<------------->(dummy0)LER_2

....Chris

James R. Leu wrote:
> I'm not understanding the issue yet.  Can you provide an
> ASCII drawing or a list of commands that would exemplify
> what your seeing?
>
> On Sat, Nov 17, 2007 at 09:17:44AM -0500, Chris Robson wrote:
>   
>> James
>>
>> Just an FYI on Explicit null label testing this morning, sorry if this 
>> is old hat for anyone. 
>>
>> I was having a problem getting it to work even though the "mpls ilm 
>> show" was stating the correct pop was configured, incoming packets 
>> appeared not to be routed via kernel after the pop.  It turns out there 
>> is an issue with targeting the "dummy0" interface.  Once I changed to a 
>> real ethX interface owned by the target router the expected action 
>> occurred, that is, pinging  from one  linux router where labels are 
>> applied to the target IP to the targeted linux route's interface IP, 
>> ergo explicit null action.
>>
>> Command sequence is:  (NOTE 10.128.3.253 can not be a dummy0 interface)
>>
>> Source router
>> mpls nhlfe add key 0 instructions push gen 1006 nexthop eth8 ipv4 
>> 10.128.0.137
>> ip route add 10.128.3.253/32 via 10.128.0.137 mpls 0x2  
>> mpls labelspace set dev eth8 labelspace 0
>>
>> Target router:
>> mpls ilm add label gen 1006 labelspace 0
>>
>> -- 
>> Christopher Robson
>> Senior Computer Scientist, GS-15
>> Naval Research Laboratory
>> Center for Computational Science
>> Networking, Code 5591
>> 4555 Overlook ave.
>> Washington, D.C. 20375-5320
>> (COM) 202-404-3138
>> (VoIP) 2024043138@GIGEF
>> (CHAT) Chris.Robson@GIGEF
>>
>>
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>
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-- 
Christopher Robson
Senior Computer Scientist, GS-15
Naval Research Laboratory
Center for Computational Science
Networking, Code 5591
4555 Overlook ave.
Washington, D.C. 20375-5320
(COM) 202-404-3138
(VoIP) 2024043138@GIGEF
(CHAT) Chris.Robson@GIGEF