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Message #99289
[Bug 1465183] Re: ubuntu 15.04 dhcp: option routers and option rfc3442-classless-static-routes
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: isc-dhcp (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1465183
Title:
ubuntu 15.04 dhcp: option routers and option rfc3442-classless-static-
routes
Status in isc-dhcp package in Ubuntu:
Confirmed
Bug description:
Hi.
Sorry for my bad english.
Iam using option rfc3442-classless-static-routes in my dhcp-server.
# cat /var/lib/dhcp/dhclient.eth0.leases
lease {
interface "eth0";
fixed-address 192.168.120.170;
option subnet-mask 255.255.255.0;
option routers 192.168.120.1;
option dhcp-lease-time 86400;
option dhcp-message-type 5;
option domain-name-servers 192.168.120.1;
option dhcp-server-identifier 192.168.120.1;
option ntp-servers 192.168.120.1;
option rfc3442-classless-static-routes 24,10,125,0,192,168,120,110;
option broadcast-address 192.168.120.255;
option domain-name "home.xmu";
renew 1 2015/06/15 05:45:48;
rebind 1 2015/06/15 17:04:48;
expire 1 2015/06/15 20:04:48;
}
In other operation system:
# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.120.1 0.0.0.0 UG 0 0 0 eth0
10.125.0.0 192.168.120.110 255.255.255.0 UG 0 0 0 eth0
192.168.120.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
In ubuntu 15.04:
# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.125.0.0 192.168.120.110 255.255.255.0 UG 0 0 0 eth0
192.168.120.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
No default gateway!!!
# cat /var/lib/dhcp/dhclient.leases
lease {
interface "eth0";
fixed-address 192.168.120.169;
option subnet-mask 255.255.255.0;
option routers 192.168.120.1;
option dhcp-lease-time 86400;
option dhcp-message-type 5;
option domain-name-servers 192.168.120.1;
option dhcp-server-identifier 192.168.120.1;
option ntp-servers 192.168.120.1;
option rfc3442-classless-static-routes 24,10,125,0,192,168,120,110;
option broadcast-address 192.168.120.255;
option domain-name "home.xmu";
renew 1 2015/06/15 07:41:11;
rebind 1 2015/06/15 16:57:38;
expire 1 2015/06/15 19:57:38;
}
If i comment option rfc3442-classless-static-routes in my dhcp-server.
Default gateway works fine:
# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.120.1 0.0.0.0 UG 0 0 0 eth0
192.168.120.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
# cat /etc/issue
Ubuntu 15.04 \n \l
# uname -a
Linux wp01 3.19.0-20-generic #20-Ubuntu SMP Fri May 29 10:10:47 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
# aptitude show isc-dhcp-client
Package: isc-dhcp-client
State: installed
Automatically installed: no
Version: 4.3.1-5ubuntu2.2
Priority: important
Section: net
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@xxxxxxxxxxxxxxxx>
Architecture: amd64
Uncompressed Size: 698 k
Depends: libc6 (>= 2.15), libdns-export100, libirs-export91, libisc-export95, debianutils (>= 2.8.2), isc-dhcp-common (= 4.3.1-5ubuntu2.2), iproute2
Suggests: resolvconf, avahi-autoipd, apparmor
Provides: dhcp-client
# aptitude show isc-dhcp-common
Package: isc-dhcp-common
State: installed
Automatically installed: no
Version: 4.3.1-5ubuntu2.2
Priority: important
Section: net
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@xxxxxxxxxxxxxxxx>
Architecture: amd64
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