On Sun, Jan 17, 2016 at 12:21:51PM -0800, Yury Shefer wrote: > Hi misc, > > I was not able to find the information about ifconfig support for the IPv4 > address configuration where I have primary address assigned by DHCP > (Comcast) and alias with static IP. My cable modem mgmt IP belongs to > 192.168.100.0/24 subnet and to access it - I have to add an alias - but it > always overwrite DHCP-assigned address (OpenBSD 5.8-stable (GENERIC.MP)). > > I tried the following hostname.if config but the last line overwrite dhcp > address: > > $ cat /etc/hostname.em0 > lladdr b8:c7:ff:cd:ff:0e > dhcp > up > rtsol > inet alias 192.168.100.50 255.255.255.0 > > # sh /etc/netstart em0 > em0: no link ..... got link > DHCPREQUEST on em0 to 255.255.255.255 > DHCPACK from 96.xxx.xx.113 (00:01:5c:63:fc:46) > bound to 67.xxx.xx.xx9 -- renewal in 92649 seconds. > # ifconfig em0 > em0: flags=208843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF6> mtu 1500 > lladdr b8:c7:ff:cd:ff:0e > priority: 0 > groups: egress > media: Ethernet autoselect (1000baseT full-duplex) > status: active > inet6 fe80::bac7:ffff:abcd:abc%em0 prefixlen 64 scopeid 0x1 > inet6 2001:abc:dead:10d:beef:be0b:2e16:9486 prefixlen 128 pltime > 343370 vltime 343370 > inet 192.168.100.50 netmask 0xffffff00 broadcast 192.168.100.255 Instead of seting an alias, just route the 192.168.100/24 subnet through your upstream gateway.
In my case, none of my inner subnets are 192.168.100/24, so any packets to that subnet go to the default route assigned by dhcp.
