Red Hat Bugzilla – Bug 98793
defaultroute fails for smtp sending (port 25)
Last modified: 2015-01-07 19:05:41 EST
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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020529
Description of problem:
Dialup USB modem connection, manual wvdial, manual copy of DNS from
/var/log/messages to Network Configuration DNS tab [see bug 98786, bug 98790].
I can ping by name, surf (http), ssh, receive mail (POP3) in Evolution, but
sending mail via SMTP from Evolution gets "Could not connect to <smtp_hostname>
port 25: no route to host."
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Configure USB modem connection, requesting auto IP and auto DNS. Manual
wvdial to workaround bug 98786. Manually forward DNS server settings from
/var/log/messages to Network Configuration DNS tab to workaround bug 98790.
2.Try to send mail using SMTP from Evolution.
Actual Results: "Could not connect to <smtp_host> port 25: No route to host"
Expected Results: No complaints sending mail.
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
nas12.bellevue1 * 255.255.255.255 UH 0 0 0 ppp0
169.254.0.0 * 255.255.0.0 U 0 0 0 lo
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
default nas12.bellevue1 0.0.0.0 UG 0 0 0 ppp0
-----ps ax | grep ppp
2984 ? S 0:00 /usr/sbin/pppd 115200 modem crtscts defaultroute useh
So wvdial did ask pppd to establish a default route using the modem, and
according to netstat there is a route with mask 0.0.0.0 .
The correct citations are
bug 98781 failed to activate ppp0 with eror 28 [workaround: manual wvdial]
bug 98786 auto DNS ignored [workaround: manual copy from /var/log/messages to
Network Configure > DNS tab]
[Sorry; my list got skewed while I was trying to be precise.]
Please verify this with a newer version of Red Hat Enterprise Linux or
Fedora Core and reopen it against the new version if it still occurs.
Closing as "not a bug" for now.