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vlan trouble with hardened kernel 3.14.15
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macumazan
n00b
n00b


Joined: 13 Jun 2010
Posts: 8

PostPosted: Fri Sep 05, 2014 11:51 am    Post subject: vlan trouble with hardened kernel 3.14.15 Reply with quote

Hi folks!

On 3.14.15

Code:
tracepath 2.9.1.1
 1?: [LOCALHOST]                                         pmtu 1500
 1:  no reply
 2:  no reply
 3:  no reply
 4:  no reply
 5:  no reply
 6:  no reply
 7:  no reply
 8:  no reply
^C


Code:
ping 2.9.1.1
PING 2.9.1.1 (2.9.1.1) 56(84) bytes of data.
64 bytes from 2.9.1.1: icmp_seq=1 ttl=64 time=0.264 ms
64 bytes from 2.9.1.1: icmp_seq=2 ttl=64 time=0.265 ms
64 bytes from 2.9.1.1: icmp_seq=3 ttl=64 time=0.280 ms
^C
--- 2.9.1.1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1998ms
rtt min/avg/max/mdev = 0.264/0.269/0.280/0.020 ms

And any TCP sessions can't established. tcpdump show only SYN and SYN-ACK on both hosts.

On 3.2.55-r7

Code:
tracepath 2.9.1.1
 1:  2.9.1.8                                         0.209ms pmtu 1500
 1:  2.9.1.1                                          0.666ms reached
 1:  2.9.1.1                                          0.582ms reached
     Resume: pmtu 1500 hops 1 back 64

ICMP and TCP works.

Any ideas?

VLAN
Code:
synt@eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
    link/ether 52:54:00:1f:31:50 brd ff:ff:ff:ff:ff:ff
    inet 2.9.1.8/24 brd 2.9.1.255 scope global synt


Code:
cat /proc/net/vlan/synt
synt  VID: 2121      REORDER_HDR: 1  dev->priv_flags: 1
         total frames received         1172
          total bytes received        60494
      Broadcast/Multicast Rcvd          199

      total frames transmitted            7
       total bytes transmitted         3238
Device: eth2
INGRESS priority mappings: 0:0  1:0  2:0  3:0  4:0  5:0  6:0 7:0
 EGRESS priority mappings:
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