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Why roscore can' find the good IP adress ?

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asked Sep 08 '11

Guido
438 ● 5 ● 15

Hi all,

My computer has two IPv4 adresses (one for the wired lan, one for the wifi). The computer name is gilgamesh. Its name on the wired lan is gilgamesh too. But its name through wifi is gilgamesh-wifi. When I start roscore, with wifi on, it complains about not being able to ping gilgamesh (While it should try to ping gilgamesh-wifi).

How to specify the name of the host computer when launching roscore ? (or any ros server)

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answered Sep 08 '11

dornhege
7708 ● 8 ● 69 ● 148
http://gki.informatik.uni...

set the ROS_HOSTNAME environment variable to the one you want.

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Thank you. It works like a charm. Guido (Sep 08 '11)edit

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answered Sep 08 '11

JeffRousseau
1141 ● 15 ● 21 ● 34
http://jeffrousseau.info/

updated Sep 08 '11

try setting your ROS_MASTER_URI env variable to: ROS_MASTER_URI=http://gilgamesh-wifi:11311

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Thank you, this works, but i'd rather use ROS_MASTER_URI when dealing with remote computer. Guido (Sep 08 '11)edit

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Asked: Sep 08 '11

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Last updated: Sep 08 '11

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