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Old 5th October 2011
aod aod is offline
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Default OpenBSD networking problems

Howdy!
I use OpenBSD/sparc64 4.9 (julia) and want to configure it as a router.
Unfortunately, I'm facing strange problems when trying to set routes correctly.

There is second host in a network, called ingrid.
When executing 'ping' from julia to ingrid, 'tcpdump' on julia shows ICMP requests and replies from ingrid just as it should, but 'ping' shows nothing!
What can be possible cause of such a situation?
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Old 5th October 2011
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jggimi jggimi is offline
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Welcome.
Quote:
What can be possible cause of such a situation?
Without more information, all we can do is guess.

I'll guess you have PF enabled but an incorrect PF configuration.
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Old 5th October 2011
n4p1 n4p1 is offline
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Quote:
Originally Posted by aod View Post
When executing 'ping' from julia to ingrid, 'tcpdump' on julia shows ICMP requests and replies from ingrid just as it should, but 'ping' shows nothing!
What can be possible cause of such a situation?
Edit pf.conf:
Code:
pass in quick on $int_if inet proto icmp from ($int_if:network) to any icmp-type {8,11}
pass out quick on $int_if inet proto icmp from any to ($int_if:network) icmp-type {8,11}
pfctl -f /etc/pf.conf and voila.
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Old 5th October 2011
aod aod is offline
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I've disabled pf for purpose of testing.

Network looks something like that:
Wild <---> adsl [router aurelia] 192.168.1.100 <---> 192.168.1.1 bge0 [OpenBSD julia] rl0 192.168.1.2 <---> 192.168.1.4 eth0 [Linux ingrid]

rl0 and eth0 are directly connected, ping shows no connection, tcpdump shows that icmp reply, request and arp who has packets flow.
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Old 5th October 2011
ocicat ocicat is offline
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Quote:
Originally Posted by aod View Post
rl0 and eth0 are directly connected...
What kind of cable is used to connect the two together? Straight-through or cross-over?
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Old 5th October 2011
aod aod is offline
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The cable is cross-over.
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Old 5th October 2011
aod aod is offline
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I've tried to connect systems with a switch, e.g.

|julia|-------.
|switch| ------ |router|
|ingrid|-----'

They see router (pings flow in both directions), but pinging julia from ingrid or ingrid from julia gives no results.
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Old 5th October 2011
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I'd like to see more information from you, aod. Please post your dmseg(8) and the outputs of # ifconfig and # route -n show -inet to start. Without this minimal information, we'll just keep guessing.
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Old 16th October 2011
mikygee mikygee is offline
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Maybe you have a netmask problem. Check the masks of each Ingrid and Julia. In principle they should be the same
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