Hi,
I have very strange problem. I have local web server in my network and problem is that I cannot access to web pages on that server when internet link is down. Precisely it’s loading web page but very slow, it takes about 5-10 minutes. Ping and tracerout to server are ok, ftp download is ok. When I try to download something from server (http.domena.ext./file.rar) I’m waiting for 5-10 minutes to offer window for download and after that download is going in full speed, but it’s still loading pages on server very slow.
Here’s the configuration:
Server have addresses 88.88.88.195-198 (pages are on shared ip 197)
Server is connected on router ethernet which have 2 subnets
88.88.88.128/28 and 88.88.88.192/26
I’m connected on router with PPPoE and I’m getting addresses from range 99.99.99.0/23
ping in time when internet link is down:
Pinging 88.88.88.197 with 32 bytes of data:
Reply from 88.88.88.197: bytes=32 time=1ms TTL=63
Reply from 88.88.88.197: bytes=32 time=1ms TTL=63
Reply from 88.88.88.197: bytes=32 time=1ms TTL=63
Reply from 88.88.88.197: bytes=32 time=1ms TTL=63
Ping statistics for 88.88.88.197:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Tracert from my computer to server in time when internet link is down:
Tracing route to domain.ext [88.88.88.197]
over a maximum of 30 hops:
1 1 ms 1 ms 1 ms 81.81.81.210
2 1 ms 1 ms 1 ms 88.88.88.197
Trace complete.
So, range of IP addresses which are conferred to me from my ISp is:
It sounds like part may be dns. Is your dns set up on the MT box?
/ip dns
set primary-dns=xx.xx.xx.xx
set secondary-dns=yy.yy.yy.yy
set allow-remote-requests=yes
i think that is not problem with DNS, becouse i have access to ftp, ssh via domain.ext, only http is to poor.
I can also access to my other server (88.88.88.133) without any problems.
How are you trying to access the pages? By domain or ip? If by domain, and the dns servers are on the internet, you will have a problem with dns when the internet connection is down.
The best way I found around this is enter the domain name in
/ip dns static
add name=www.yourdomain.com address=88.88.88.197
This overrrides external dns. It will affect nothing outside your router. All other dns will show normal.
I also noticed, when I'm pinging another server that is on the same interface, only in the second subnet, I get redirest host.
ping from 88.88.88.195 > 88.88.88.135
From 88.88.88.193: icmp_seq=5 Redirect Host(New nexthop: 88.88.88.135)
64 bytes from 88.88.88.135: icmp_seq=5 ttl=64 time=0.523 ms
From 88.88.88.193: icmp_seq=6 Redirect Host(New nexthop: 88.88.88.135)
64 bytes from 88.88.88.135: icmp_seq=6 ttl=64 time=0.468 ms
From 88.88.88.193: icmp_seq=7 Redirect Host(New nexthop: 88.88.88.135)
64 bytes from 88.88.88.135: icmp_seq=7 ttl=64 time=0.444 ms
64 bytes from 88.88.88.135: icmp_seq=8 ttl=64 time=0.630 ms
That appears to be a routing problem. It looks like it is trying to send the 88.88.88.192/26 out the gateway assigned to 88.88.88.128/28 subnet. /ip route would be suspect then.
I don’t know if the problem is the same but…
when I connect a linksys PAP2 Voip (SIP) adapter behind a mk router, connected to internet with PPPoE, I cannot get access from outside…
This is what append: I try to connect to PAP2 from connection public IP (i make a dst-nat with tcp port 80) and I see some element of web interface but I cannot complete it (sometime seems to complete after several minute). I make many test with linksys support that says that the problem is on my router… but I cannot find a solution with the staff selling me the CPE.