http://bugzilla.novell.com/show_bug.cgi?id=617743
http://bugzilla.novell.com/show_bug.cgi?id=617743#c22
Thomas Frühbeck changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |ASSIGNED
InfoProvider|fruehbeck@aon.at |
--- Comment #22 from Thomas Frühbeck 2010-07-07 11:10:08 UTC ---
Hi,
I tried the DHCP in the office and finally found the 'routers' option, which
you mentioned in the lease, examples provided below.
I understand, that my DHCP server doesn't provide this parameter. and that
NetworkManager (at least in 11.3) insists on parsing for this _optional_
parameter.
I see a point in not accepting an implicit configuration of default routes by a
malicious DHCP server, but if an attacker may design a DHCP response, this will
be the least problem to solve.
Still I cannot understand, why it has been decided to make NetworkManager (or
the scripts it invokes) fail to configure a network connection without notice.
Is it possible, that it is common practice to accept the DHCP server as default
GW if not otherwise requested?
It seems, that I will have to dig deeply into telnet ADSL router configuration
because of this decision.
Example DHCP Response OK:
lease {
interface "eth0";
fixed-address 10.229.0.170;
option subnet-mask 255.255.254.0;
option routers 10.229.1.254;
option dhcp-lease-time 64800;
option dhcp-message-type 5;
...
}
Example DHCP Response - no default gateway:
lease {
interface "eth0";
fixed-address 10.0.0.3;
option subnet-mask 255.255.255.0;
option dhcp-lease-time 4294967295;
option dhcp-message-type 5;
...
}
Regards,
Thomas
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