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computers / comp.os.linux.networking / Re: tb ping failure failures

tb ping failure failures

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From: BitTwis...@mouse-potato.com (Bit Twister)
Newsgroups: comp.os.linux.networking
Subject: tb ping failure failures
Date: Thu, 3 Nov 2022 02:28:34 -0500
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by: Bit Twister - Thu, 3 Nov 2022 07:28 UTC

I have three nodes on my Lan, wb, mtv, and tb.

ping from tb to mtv and wb fails.
ping to gateway/yahoo.com works.

I have copied the firewall settings, /etc/hosts from mtv to tb and
rebooted tb and yet tb can not ping mtv or wb but can ping the router.

systemd journal shows no dropped packets from tb on mtv or wb.

wb and mtv can ping everyone on the Lan.
wb and mtv can rsync/scp files to tb.

Except for Iface values tb route looks the same as/on all three nodes.

route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.50.1 0.0.0.0 UG 5 0 0 enp15s0
169.254.0.0 0.0.0.0 255.255.0.0 U 1002 0 0 enp15s0
192.168.50.0 0.0.0.0 255.255.255.0 U 0 0 0 enp15s0

tb can ping the gateway. but not mtv or wb.

I have no idea on how/what to check next to resolve the failure.
Any suggestions welcome.

Thanks in advance for any replies.

Re: tb ping failure failures

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From: mo0...@posteo.de (Marco Moock)
Newsgroups: comp.os.linux.networking
Subject: Re: tb ping failure failures
Date: Thu, 3 Nov 2022 08:39:00 +0100
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by: Marco Moock - Thu, 3 Nov 2022 07:39 UTC

Am 03.11.2022 schrieb Bit Twister <BitTwister@mouse-potato.com>:

> I have copied the firewall settings, /etc/hosts from mtv to tb and
> rebooted tb and yet tb can not ping mtv or wb but can ping the router.

Please show the content of /etc/hosts.

Also show the output of "ip a".
/etc/nsswitch.conf is also relevant.

Subject	Author
tb ping failure failures	Bit Twister
Re: tb ping failure failures	Marco Moock