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[Bug 1001690] New: PPP can only route to subnet if using a nullmodem
- From: bugzilla-daemon at bugs dot ecos dot sourceware dot org
- To: unassigned at bugs dot ecos dot sourceware dot org
- Date: Wed, 17 Oct 2012 16:16:07 +0100
- Subject: [Bug 1001690] New: PPP can only route to subnet if using a nullmodem
- Auto-submitted: auto-generated
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Summary: PPP can only route to subnet if using a null modem
Product: eCos
Version: 3.0
Platform: All
OS/Version: All
Status: UNCONFIRMED
Severity: major
Priority: low
Component: TCP/IP
AssignedTo: unassigned@bugs.ecos.sourceware.org
ReportedBy: kenkyee@excite.com
CC: ecos-bugs@ecos.sourceware.org
Class: Advice Request
If you bring up pppd on a Linux machine connected to a null modem to eCos, eCos
only seems to know how to route to the local subnet.
pppd was started as follows (the local subnet is 192.168.50.x):
pppd noauth nodetach nocrtscts nobsdcomp nodeflate ms-dns 66.189.0.100 local
lock persist debug dump logfd 1 proxyarp defaultroute
192.168.50.251:192.168.50.252 /dev/ttyS0 9600
You can't ping a remote server (e.g., Google's DNS server at 8.8.8.8). Packets
seem to go out and come back onto the interface (tested w/ serial port
breakout) and eCos doesn't see them.
Might be related to this bug setting neg_accm in the PPP options made no
difference: http://sources.redhat.com/ml/ecos-discuss/2004-12/msg00041.html
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