> >route add -net 224.0.0.0/4 dev eth0
> >
> >To make it permanent, in the file
/etc/sysconfig/network-scripts/route-eth0 > >(on FC4) I have:
> >
> >224.0.0.0/4 dev eth0
> > Thank you for the advice. I added the route and the application does
not > work. The server is listening (according to netstat -a), but does
not hear > the client. Do you have any other suggestions?
Try tcpdump or ethereal to see if the data is actually reaching the
interface.
Looks good to me:
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96
bytes
08:50:20.113903 IP (tos 0x0, ttl 2, id 0, offset 0, flags [DF], proto: UDP
(17), length: 248) 172.19.0.106.32779 > 225.6.6.7.28695: UDP, length 220
08:50:20.149064 IP (tos 0x0, ttl 2, id 0, offset 0, flags [DF], proto: UDP
(17), length: 96) 172.19.0.106.32780 > 225.6.6.7.28695: UDP, length 68
08:50:20.149211 IP (tos 0x0, ttl 2, id 0, offset 0, flags [DF], proto: UDP
(17), length: 248) 172.19.0.106.32781 > 225.7.7.7.vocaltec-phone: UDP,
length 220
08:50:20.166822 IP (tos 0x0, ttl 2, id 0, offset 0, flags [DF], proto: UDP
(17), length: 96) 172.19.0.106.32782 > 225.7.7.7.vocaltec-phone: UDP, length
68
08:50:20.166963 IP (tos 0x0, ttl 2, id 0, offset 0, flags [DF], proto: UDP
(17), length: 96) 172.19.0.106.32783 > 225.6.6.7.28695: UDP, length 68
08:50:20.115255 IP (tos 0x0, ttl 64, id 11344, offset 0, flags [DF], proto:
UDP (17), length: 68) 172.19.0.106.32783 > 192.168.0.1.domain: 40069+ PTR?
7.6.6.225.in-addr.arpa. (40)
08:50:20.126015 IP (tos 0x0, ttl 63, id 14226, offset 0, flags [none],
proto: UDP (17), length: 125) 192.168.0.1.domain > 172.19.0.106.32783:
40069 NXDomain 0/1/0 (97)
08:50:20.128561 IP (tos 0x0, ttl 64, id 11348, offset 0, flags [DF], proto:
UDP (17), length: 71) 172.19.0.106.32783 > 192.168.0.1.domain: 9908+ PTR?
106.0.19.172.in-addr.arpa. (43)
08:50:20.139055 IP (tos 0x0, ttl 63, id 14229, offset 0, flags [none],
proto: UDP (17), length: 127) 192.168.0.1.domain > 172.19.0.106.32783: 9908
NXDomain* 0/1/0 (99)
08:50:20.141152 IP (tos 0x0, ttl 63, id 14230, offset 0, flags [none],
proto: UDP (17), length: 127) 192.168.0.1.domain > 172.19.0.106.32783: 9908
NXDomain* 0/1/0 (99)
08:50:20.149541 IP (tos 0x0, ttl 64, id 11353, offset 0, flags [DF], proto:
UDP (17), length: 68) 172.19.0.106.32783 > 192.168.0.1.domain: 20715+ PTR?
7.7.7.225.in-addr.arpa. (40)
08:50:20.160208 IP (tos 0x0, ttl 63, id 14233, offset 0, flags [none],
proto: UDP (17), length: 125) 192.168.0.1.domain > 172.19.0.106.32783:
20715 NXDomain 0/1/0 (97)
08:50:20.167422 IP (tos 0x0, ttl 64, id 11357, offset 0, flags [DF], proto:
UDP (17), length: 70) 172.19.0.106.32783 > 192.168.0.1.domain: 12600+ PTR?
1.0.168.192.in-addr.arpa. (42)
08:50:20.179193 IP (tos 0x0, ttl 63, id 14236, offset 0, flags [none],
proto: UDP (17), length: 126) 192.168.0.1.domain > 172.19.0.106.32783:
12600 NXDomain* 0/1/0 (98)
08:50:20.181165 IP (tos 0x0, ttl 63, id 14237, offset 0, flags [none],
proto: UDP (17), length: 126) 192.168.0.1.domain > 172.19.0.106.32783:
12600 NXDomain* 0/1/0 (98)
08:50:20.249407 IP (tos 0x0, ttl 63, id 14238, offset 0, flags [none],
proto: UDP (17), length: 125) 192.168.0.1.domain > 172.19.0.106.32783:
40069 NXDomain 0/1/0 (97)
08:50:20.284550 IP (tos 0x0, ttl 63, id 14239, offset 0, flags [none],
proto: UDP (17), length: 125) 192.168.0.1.domain > 172.19.0.106.32783:
20715 NXDomain 0/1/0 (97)
08:50:20.284656 IP (tos 0xc0, ttl 64, id 21433, offset 0, flags [none],
proto: ICMP (1), length: 153) 172.19.0.106 > 192.168.0.1: ICMP 172.19.0.106
udp port 32783 unreachable, length 133
IP (tos 0x0, ttl 63, id 14239, offset 0, flags [none], proto: UDP
(17), length: 125) 192.168.0.1.domain > 172.19.0.106.32783: 20715
NXDomain[|domain]
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