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RayDude
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Joined: 29 May 2004
Posts: 2091
Location: San Jose, CA
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 Posted: Fri Mar 20, 2020 2:48 pm Post subject: Why can't I ssh from wifi device to wifi device? [fixed] |
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When I attempt to ssh from one wifi attached laptop to another, ssh prompts for a password and then hangs.
I found an old thread online that describes a problem with router software, but I find it hard to believe that my ASUS router would have a bug like that 13 years later.
Has anyone ever come across something like this before?
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Last edited by RayDude on Fri Mar 20, 2020 11:41 pm; edited 1 time in total |
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joanandk
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Joined: 12 Feb 2017
Posts: 169
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| Posted: Fri Mar 20, 2020 5:03 pm Post subject: Re: Why can't I ssh from wifi device to wifi device? |
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| RayDude wrote: | | Has anyone ever come across something like this before? |
Things to check:
a) Does SSH from either machines work on a wired system?
b) let tcpdump run on the other machine while trying to ssh to it.
c) check if the router has wlan isolation enabled.
BR |
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RayDude
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Joined: 29 May 2004
Posts: 2091
Location: San Jose, CA
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| Posted: Fri Mar 20, 2020 6:10 pm Post subject: Re: Why can't I ssh from wifi device to wifi device? |
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| joanandk wrote: | | RayDude wrote: | | Has anyone ever come across something like this before? |
Things to check:
a) Does SSH from either machines work on a wired system?
b) let tcpdump run on the other machine while trying to ssh to it.
c) check if the router has wlan isolation enabled.
BR |
a) Yes. If I ssh from wired to wireless it works.
b) I'll do that when I have some time.
c) I looked for that option, but couldn't find it, I'll look again.
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54799
Location: 56N 3W
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| Posted: Fri Mar 20, 2020 7:14 pm Post subject: |
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RayDude,
Do you have both wired and wireless interfaces active and in the same subnet?
If so, you may be getting a reply over the wrong interface, so it never gets to your ssh window.
Multiple interfaces in the same subnet is usually a verybadthing.
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NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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RayDude
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Joined: 29 May 2004
Posts: 2091
Location: San Jose, CA
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| Posted: Fri Mar 20, 2020 11:41 pm Post subject: |
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Thanks Neddy.
| NeddySeagoon wrote: | RayDude,
Do you have both wired and wireless interfaces active and in the same subnet?
If so, you may be getting a reply over the wrong interface, so it never gets to your ssh window.
Multiple interfaces in the same subnet is usually a verybadthing. |
I only have on active interface on both devices, but the wifi and ethernet are on the same subnet.
I went to look for the settings in the router to see if I had wifi isolation on, but found there was a new version of firmware that fixed a lot of bugs.
I installed it and the problem seems to have gone away.
Again, thanks for posting.
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