Src and Dst IP not correct in my single host multiple loopback cards env.
Hi, guys,
I have a single host vm system, in order to see apps communication in wireshark, I installed multiple lookback cards, and distributed apps on different IPs.
but in wireshark log, I noticed horizontal communication line not shown properly, in sip level traffic, I can see communication is between different IP, but in IP level, Src and Dst IP are always same, which causes horizontal communication line shrinked to a dot with 2 ports on one IP.
Kevin
trying to upload a image, but don't have enough points yet.
Kevin
The convention is to place it on a public file share then update the question with a link to it.
And/or if possible, a capture file would provide more information than a screen shot does.
Hi, Chuckc,
https://www.dropbox.com/scl/fi/m60ms8...
I uploaded the capture file to Dropbox and share the link, not sure if need to login dropbox to download the file.
I made some progress, I deleted loopback network cards, instead, I added network cards from VMware setting.
now, I can see RTP communication showing properly in ladder diagram, which has correct src, and dst IP ( vmware virtual network card), but for sip communication, still only showing same IP for src, and dst.
Kevin
Is there a local firewall blocking ports?
icmp and sipshowssiptraffic being rejected.Chuckc,
but all sip calls work as expected, if there is any sip port blocked, it will impact sip communication.
besides, For RTP communication, I can see the correct vmware cards mac address, and Ip address showing properly as below, which caused RTP communication between two IPs to show properly between 2 IPs...
Ethernet II, Src: VMware_11:15:b7 (00:0c:29:11:15:b7), Dst: VMware_11:15:a3 (00:0c:29:11:15:a3)
but for sip communication,
Null/Loopback Family: IP (2)
Kevin