[asterisk-bugs] [JIRA] (ASTERISK-26955) SIP Packets with Via "received=" Containing IPv6 Address Delimited by "[]" Rejected

[Rusty Newton (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-26955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=236692#comment-236692 ] 

Rusty Newton edited comment on ASTERISK-26955 at 4/25/17 3:23 PM:
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Thanks for the report. Can you attach an Asterisk debug log for extra clarity in terms of Asterisk's response and behavior in this case? 

Be sure it includes the pjsip logger output of course. Thanks!


was (Author: rnewton):
Thanks for the report. Can you attach an Asterisk debug log for extra clarity in terms of Asterisk's response and behavior in this case? 

> SIP Packets with Via "received=" Containing IPv6 Address Delimited by "[]" Rejected
> -----------------------------------------------------------------------------------
>
>                 Key: ASTERISK-26955
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26955
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: pjproject/pjsip
>    Affects Versions: 14.3.0
>            Reporter: Peter Sokolov
>            Assignee: Peter Sokolov
>
> When using PJSIP and a SIP packet containing Via "received" with an IPv6 address delimited by "[" and "]" is received, PJSIP drops such a packet complaining about the "[" and "]". No calls can be established.
> Via: SIP/2.0/UDP [2001:db8::9:1];received=[2001:db8::9:255];branch=z9hG4bKas3-111
> RFC5118 sais that even though this is not a valid request based on a strict interpretation of the grammar in [RFC3261], robust implementations must nonetheless be able to parse the topmost Via header field and continue processing the request. I assume that Asterisk should be treated as a robust implementation.
> Channel SIP has no problems with SIP packets containing Via received= with the IPv6 address in brackets.



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