lug-bg: gateway routing problem ?

["raptor@xxxxxxxxxx" <raptor@xxxxxxxxxx>]

zdraweite,


Imam sledniq mnogo gaden problem ... pyrwo edna diagramka :

x.x.1.0/24 -----------------|
x.x.2.0/24 -----------------|---- (gw: eth0: x.x.1.1 eth1: x.x.2.1 eth1: x.x.3.1)  ---->
x.x.3.0/24 -----------------|


sega imam dwe machini  x.x.3.10 (2.4 kernel) and x.x.3.11(2.6 kernel) 
Wsichki HOSTO-we sa w edna LAN (fizicheska mreva) no sa s razlichni IP-ta (razlichni logicheski mrevi)

Kato gledam trafika s iftop i tcpdump (w gateway-a) pytq na paketa e sledniq :
(neka da wzemem za primer source x.x.1.5 i destinataion x.x.3.10)

x.x.1.5  ----> gw:x.x.1.1 ----> x.x.3.10 ---> x.x.1.5 

zabelevete che kogato paketa se wryshta gateway-a ne se izpolzwa (poneve sa w edna LAN - arp), towa e NACHINA 
po koito az islkam da raboti i raboti na mashinite koito dosega polzwam...

Pusnah si edna nowa machina s kernel 2.6, na koqto wsichko routing-i,  "sysctl -a | grep neigh" , "sysctl -a | grep arp" ,
 mrevi ..etc e syshtoto, obache pytq na paketa e sledniqt :

x.x.1.5  ----> gw:x.x.1.1 ----> x.x.3.11 ---> gw:x.x.3.1?  --->  x.x.1.5 

Kakto wivdate tuka paketa na wryshtane minawa prez gateway-a, towa az NE GO ISKAM ?!
Trafika e golqm i mashinata mi e natowarena s dostatychno drug trafik... oswen towa e shaper i w toq 
sluchai shapwa trafika na malki skorosti... koeto pak waobshte ne e ideqta...

Mislq si che e nqkakaw problem swyrzan s ARP poneve  ako probwam eto towa na nowata machina :

#arp -n | wc -l
3

na edna ot starite  :

# arp -n | wc -l
105

i dwete se kontaktwat ot mnogo poweche ot 3 hosta..


Imate li nqkakwa ideq ot kakwo move da e towa.... po moi nabludeniq osnownata razlika e che nowata mashina 
e s kernel 2.6 a starite s 2.4, koeto ne e zadylvitelno da e problema estestweno !? 
Dali e promenqno nesto ili trqbwa da se pipne nqkakwa opciq ?

Daite idei , kolkoto i neworqtni da sa...

blagodarq predwaritelno..


tia
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