[Dnsmasq-discuss] failed to assign ip for debian installer (udhcpc)

Vasiliy Tolstov v.tolstov at selfip.ru
Wed May 22 17:53:59 BST 2013


And this is not works for me:
tcpdump says:
20:53:12.299104 IP (tos 0x0, ttl 64, id 0, offset 0, flags [none],
proto UDP (17), length 320)
    0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request
from 52:54:00:00:00:33, length 292, xid 0x1d0f312d, secs 3, Flags
[none] (0x0000)
          Client-Ethernet-Address 52:54:00:00:00:33
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Request
            Client-ID Option 61, length 7: ether 52:54:00:00:00:33
            Requested-IP Option 50, length 4: 37.139.40.32
            Server-ID Option 54, length 4: 37.139.40.9
            MSZ Option 57, length 2: 576
            Parameter-Request Option 55, length 7:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Hostname
              Domain-Name, BR, NTP
            Vendor-Class Option 60, length 12: "udhcp 1.20.2"
            END Option 255, length 0
20:53:12.386992 IP (tos 0xc0, ttl 64, id 35055, offset 0, flags
[none], proto UDP (17), length 328)
    37.139.40.9.67 > 37.139.40.32.68: [bad udp cksum 0x9c84 ->
0x3b2f!] BOOTP/DHCP, Reply, length 300, xid 0x1d0f312d, secs 3, Flags
[none] (0x0000)
          Your-IP 37.139.40.32
          Server-IP 37.139.40.9
          Client-Ethernet-Address 52:54:00:00:00:33
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: ACK
            Server-ID Option 54, length 4: 37.139.40.9
            Lease-Time Option 51, length 4: 300
            RN Option 58, length 4: 150
            RB Option 59, length 4: 259
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 37.139.40.255
            Domain-Name-Server Option 6, length 4: 8.8.8.8
            Default-Gateway Option 3, length 8: 24.37.139.40,37.139.40.254
            END Option 255, length 0
            PAD Option 0, length 0, occurs 4

2013/5/22 Vasiliy Tolstov <v.tolstov at selfip.ru>:
> 2013/5/22 Ilya Evseev <ilya.evseev at gmail.com>:
>> Hi, Vase!
>> Do you use vhost-net?
>> If so, try "iptables -t mangle -I INPUT -p udp --dport bootpc -j CHECKSUM
>> --checksum-fill" on kvm farm.
>> See tested settings here:
>> http://code.google.com/p/linuxkvm-loader/source/browse/
>>
>> WBR, Ilya
>
>
> Hmm. Why standard dhcp client from debian can work without this?
>
> --
> Vasiliy Tolstov,
> e-mail: v.tolstov at selfip.ru
> jabber: vase at selfip.ru



-- 
Vasiliy Tolstov,
e-mail: v.tolstov at selfip.ru
jabber: vase at selfip.ru



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