https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256393
Bug ID: 256393
Summary: Issue with recreation of ppp/tun interfaces
Product: Base System
Version: 13.0-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: nwhiteh...@freebsd.org
I am running a machine acting as a ppp server using userland ppp(8) and running
13-STABLE (this issue does not occur on 13.0-RELEASE and earlier). When a
client establishes a connection, everything is fine and a connection is
established without issue. When that connection ends and the client attempts to
re-establish the connection, however, IPCP fails and just continues in a loop,
never setting the IP address on the local tun(4) interface. If I try to set it
by hand, I get this:
root@conference:/home/nwhitehorn # ifconfig tun0
tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1500
options=80000<LINKSTATE>
inet6 fe80::f816:3eff:fe26:d92a%tun0 prefixlen 64 scopeid 0x3
groups: tun
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
Opened by PID 1359
root@conference:/home/nwhitehorn # ifconfig tun0 192.168.42.1 192.168.42.2
ifconfig: ioctl (SIOCAIFADDR): File exists
This seems like a regression in tun(4), but I haven't had a chance to really
debug it.
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