>>Maybe we can manually add the entry with 'arp -s ..' - should that work?
I don't known, seem that something is related to linux routing not working with
tap devices with proxy arp.
client -----------------> proxmox host---------------->guest tap
------
10.0.0.2 10.0.0.1 192.168.1.1
client : route add 192.168.1.1 gw 10.0.0.1
proxmox host : arp -n : 192.168.1.1 ether da:fb:56:76:36:1b C
tap
echo 0 > /proc/sys/net/ipv4/conf/tap/proxy_arp
from client :
traceroute to 192.168.1.1 (192.168.1.1), 30 hops max, 60 byte packets
1 kvmtest1.odiso.net (10.0.0.1) 0.156 ms 0.144 ms 0.133 ms
2 * * *
3 * * *
4 * * *
then
echo 1 > /proc/sys/net/ipv4/conf/tap/proxy_arp
traceroute to 192.168.1.1 (192.168.1.1), 30 hops max, 60 byte packets
1 kvmtest1.odiso.net (10.0.0.1) 0.167 ms 0.152 ms 0.139 ms
2 192.168.1.2 (192.168.1.1) 0.412 ms 0.402 ms 0.388 ms
then
echo 0 > /proc/sys/net/ipv4/conf/tap/proxy_arp
traceroute to 192.168.1.1 (192.168.1.1), 30 hops max, 60 byte packets
1 kvmtest1.odiso.net (10.0.0.1) 0.167 ms 0.152 ms 0.139 ms
2 192.168.1.2 (192.168.1.1) 0.412 ms 0.402 ms 0.388 ms
?????????????????? working for some seconds ??????????
then try again
traceroute to 192.168.1.1 (192.168.1.1), 30 hops max, 60 byte packets
1 kvmtest1.odiso.net (10.0.0.1) 0.156 ms 0.144 ms 0.133 ms
2 * * *
3 * * *
4 * * *
But in any case, the packet can reach the proxmox host, so it's something in
proxmox host routing.
(In any case, client only have proxmox host mac-ip in his arp table and proxmox
host have tap mac-ip in his arp table too)
----- Mail original -----
De: "Dietmar Maurer" <[email protected]>
À: "Dietmar Maurer" <[email protected]>, "Alexandre DERUMIER"
<[email protected]>
Cc: [email protected]
Envoyé: Lundi 26 Août 2013 17:47:34
Objet: RE: [PATCH] add routed network mode
> > So we need to use proxy-arp, to get macaddress of host instead tap
> > interface.
> >
> > Do you really need proxy-arp on $external_iface ?
>
> I though both is needed - but I will retest tomorrow.
Maybe we can manually add the entry with 'arp -s ..' - should that work?
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