I would wonder if 255.255.255.255 did actually work. The last useful netmask is 255.255.255.254 IMHO.
maybe netmask 255.255.255.255 has a special meaning ? re, wh Am 04.11.2011 15:40, schrieb 馬克泡: > Hi Denys, > >>> The option DHCP_ROUTER looks like has been commented out in >>> networking/udhcp/common.h. >>> If the option has been comment out, how could the code in dhcpc.c >>> parse the packet >>> and expose it to environment variables? >> >> Look at dhcp_optflags[] and dhcp_option_strings[] in >> networking/udhcp/common.c > > Thanks for your help. > I've understand that the problem is not related to udhcpc. > > After I've printed the routing control command as debug message. > I've found that when using ifconfig to set the netmask of NIC as > 255.255.255.255 > won't create an entry in routing table. > That's why configure the default gateway will fail. > > I don't remembered set the nemask as 255.255.255.255 to a NIC with ifconfig > won't create an entry in routing table. At least 3G networks works very well. > The dhclient won't have a problem on this situation. > Should we fix the udcpc/default.script to cover this kinde of situation? > > The following log is the debug dump of udhcpc/default.script on ubuntu 11.11. > > /home/macpaul/vmax# udhcpc -i wimax0 -q > udhcpc (v1.18.4) started > Sending discover... > Sending select for 111.67.56.236... > Lease of 111.67.56.236 obtained, lease time 3600 > /sbin/ifconfig wimax0 111.67.56.236 netmask 255.255.255.255 > /usr/share/udhcpc/default.script: Resetting default routes > while /sbin/route del default gw 0.0.0.0 dev wimax0; do :; done > SIOCDELRT: no such process > /sbin/route add default gw 111.67.48.1 dev wimax0 metric 0 > SIOCADDRT: no such process > /usr/share/udhcpc/default.script: Adding DNS 111.67.54.11 > /usr/share/udhcpc/default.script: Adding DNS 111.67.54.12 > > I'll post the log of udhcpc in busybox later. > _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox
