Displaying 5 results from an estimated 5 matches for "esn160".
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ens160
2018 Aug 09
4
bad udp cksum
Hi,
Recently I'm noticing an interesting issue.
My CentOS servers are trying to send logs to a logging server via 514/udp,
however I'm not receiving anything.
I did the following on CentOS
*tcpdump -vvv -nn udp -i esn160 port 514*
In another session on the same server:
*nc syslog-server -u 514*
tcpdump started to show me messages like:
*[bad udp cksum 0x3ce9 -> 0xb0f5!] SYSLOG, length: 172*
After some research I disabled TCO (ethtool -K ens160 tx off rx off), now
tcpdump shows:
*[udp sum ok] [|syslog]*
And I&...
2018 Aug 10
0
CentOS Digest, Vol 163, Issue 10
...plain; charset="UTF-8"
>
> Hi,
>
> Recently I'm noticing an interesting issue.
> My CentOS servers are trying to send logs to a logging server via 514/udp,
> however I'm not receiving anything.
>
> I did the following on CentOS
> *tcpdump -vvv -nn udp -i esn160 port 514*
>
> In another session on the same server:
> *nc syslog-server -u 514*
>
> tcpdump started to show me messages like:
> *[bad udp cksum 0x3ce9 -> 0xb0f5!] SYSLOG, length: 172*
>
> After some research I disabled TCO (ethtool -K ens160 tx off rx off), now
> tcpd...
2018 Aug 15
0
CentOS Digest, Vol 163, Issue 10
...plain; charset="UTF-8"
>
> Hi,
>
> Recently I'm noticing an interesting issue.
> My CentOS servers are trying to send logs to a logging server via 514/udp,
> however I'm not receiving anything.
>
> I did the following on CentOS
> *tcpdump -vvv -nn udp -i esn160 port 514*
>
> In another session on the same server:
> *nc syslog-server -u 514*
>
> tcpdump started to show me messages like:
> *[bad udp cksum 0x3ce9 -> 0xb0f5!] SYSLOG, length: 172*
>
> After some research I disabled TCO (ethtool -K ens160 tx off rx off), now
> tcpd...
2018 Aug 10
0
bad udp cksum
> Hi,
>
> Recently I'm noticing an interesting issue.
> My CentOS servers are trying to send logs to a logging server via 514/udp,
> however I'm not receiving anything.
>
> I did the following on CentOS
> *tcpdump -vvv -nn udp -i esn160 port 514*
>
> In another session on the same server:
> *nc syslog-server -u 514*
>
> tcpdump started to show me messages like:
> *[bad udp cksum 0x3ce9 -> 0xb0f5!] SYSLOG, length: 172*
>
> After some research I disabled TCO (ethtool -K ens160 tx off rx off), now
> tcpd...
2018 Sep 06
0
bad udp cksum
...t 9, 2018 9:53 PM
To: centos at centos.org
Subject: [CentOS] bad udp cksum
Hi,
Recently I'm noticing an interesting issue.
My CentOS servers are trying to send logs to a logging server via 514/udp,
however I'm not receiving anything.
I did the following on CentOS
*tcpdump -vvv -nn udp -i esn160 port 514*
In another session on the same server:
*nc syslog-server -u 514*
tcpdump started to show me messages like:
*[bad udp cksum 0x3ce9 -> 0xb0f5!] SYSLOG, length: 172*
After some research I disabled TCO (ethtool -K ens160 tx off rx off), now
tcpdump shows:
*[udp sum ok] [|syslog]*
And I&...