Re: AW: linux, kernel 2.6.10, vlans and IPsec problem

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You're right. Wrong list. I've solved the problem however.
Sorry for messing up.


Hello Stindl,

Thursday, February 10, 2005, 2:08:05 PM, you wrote:

SWE> Hi,

SWE> Well, I don't understand where your problem is.
SWE> If you have disabled netfilter, than why do you think your
SWE> ipsec problem is an netfilter issue?
SWE> The packets in your trace have a size of 88 byte. So
SWE> packet-size shouldn't be an issue too.
SWE> So what exactly doesn't work?

SWE> Regards
SWE> wolfgang

>> -----Ursprüngliche Nachricht-----
>> Von: netfilter-bounces@xxxxxxxxxxxxxxxxxxx 
>> [mailto:netfilter-bounces@xxxxxxxxxxxxxxxxxxx] Im Auftrag von 
>> Daniel Rycaj
>> Gesendet: Donnerstag, 10. Februar 2005 12:15
>> An: netfilter@xxxxxxxxxxxxxxxxxxx
>> Betreff: linux, kernel 2.6.10, vlans and IPsec problem
>> 
>> 
>> Hi all,
>> 
>> details:
>> linux fedora 3 (kernel compiled from official sources)
>> iptables 1.2.11 (compiled from sources too)
>> vlan support turned on (vconfig from cvs)
>> 
>> I have following situation:
>> 
>> 
>>                  eth0    eth1.X(vlans)
>> internet----------[linux]-----------------[clients]
>> 
>> 
>> I *DO NOT* use private addresses so I don't use
>> NAT at all (just packet forwarding).
>> 
>> One of my clients tries to establish IPsec connection
>> to a host located somewhere outside of my network
>> and it doesn't work.
>> 
>> During the tests I removed all firewall rules.
>> 
>> tcpdump shows me:
>> 
>> [root@GW]# tcpdump -n -i eth1.9 -vv
>> tcpdump: listening on eth1.9, link-type EN10MB (Ethernet), 
>> capture size 96 bytes
>> 12:09:59.200139 IP (tos 0x0, ttl 116, id 7059, offset 0, flags [none],
>> proto 50, length: 88) XX.XX.XX.XX > YY.YY.YY>YY: 
>> ESP(spi=0x139c2705,seq=0x35b)
>> 12:10:01.767596 IP (tos 0x0, ttl 128, id 49969, offset 0, flags
>> [none], proto 50, length: 88) YY.YY.YY.YY > XX.XX.XX>XX: 
>> ESP(spi=0x43b9ff86,seq=0x3d3)
>> 
>> I tried to lower MTU on eth1.9 but it didn't help.
>> Any ideas ?
>> 
>> 
>> -- 
>> Best regards,
>>  Daniel                          mailto:daniel@xxxxxxxxx
>> 
>> 
>> 



-- 
Best regards,
 Daniel                            mailto:daniel@xxxxxxxxx




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