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DocDrew
How can I help?
Premium Member
join:2009-01-28
SoCal
Ubee E31U2V1
Technicolor TC4400
Linksys EA6900

1 edit

DocDrew to JimE

Premium Member

to JimE

Re: [HSI] Modem ip address?

said by JimE:

You can't ping the modem from behind the router/switch.

Since when? Most home routers allow it, since they don't block RFC1918 addresses from crossing the WAN link:

$ ping 192.168.100.1
PING 192.168.100.1 (192.168.100.1): 56 data bytes
64 bytes from 192.168.100.1: icmp_seq=0 ttl=63 time=2.903 ms
64 bytes from 192.168.100.1: icmp_seq=1 ttl=63 time=2.480 ms
64 bytes from 192.168.100.1: icmp_seq=2 ttl=63 time=2.472 ms
64 bytes from 192.168.100.1: icmp_seq=3 ttl=63 time=2.482 ms
64 bytes from 192.168.100.1: icmp_seq=4 ttl=63 time=2.510 ms
^C
--- 192.168.100.1 ping statistics ---
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 2.472/2.569/2.903/0.167 ms

$ traceroute 192.168.100.1
traceroute to 192.168.100.1 (192.168.100.1), 64 hops max, 52 byte packets
1 home-router (192.168.1.1) 0.975 ms 0.676 ms 0.604 ms
2 192.168.100.1 (192.168.100.1) 2.476 ms 2.496 ms 2.416 ms
$





smokeydog
@charter.com

smokeydog

Anon

Thanks to all for your advice. At motorola I found that the modem's ip is in fact 192.168.100.1, but my router at 192.168.1.1 and subnet 255.255.255.0 won't allow a connection to anything but a 192.168.1.x address. The router won't let me change the subnet to anything other than 255.255.255.x.

I can probably get around this by setting the router ip to 192.168.100.2, but does anyone know if this will mess anything up?

A direct ethernet from modem to PC will probably work, but I can't use that on a regular basis.

bdnhsv
join:2012-01-20
Huntsville, AL

bdnhsv to DocDrew

Member

to DocDrew
What's the IP address currently in use on your computer? 192.168.1.X ?

smokeydog
@charter.com

smokeydog

Anon

I found the solution manually adding a route using route add at the command prompt.
"route add 192.168.100.0 mask 255.255.255.0 192.168.1.109"
where 192.168.1.109 is my pc acting as gateway.